$109+ Cheap flights from Chicago (CHI) to Luis Munoz Marin Intl (SJU)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SJU
Jun 12 — Jun 191
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Chicago to Luis Munoz Marin Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Chicago to San Juan Luis Munoz Marin Intl are usually found in January or July, booked 28 days in advance, depart on a Tuesday or Monday and return on a Friday
Cheap flight deals from Chicago to Luis Munoz Marin Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from Chicago to Luis Munoz Marin IntlExplore the most affordable flight options available from Chicago to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.
Explore the most affordable flight options available from Chicago to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.
This American Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/235:14 pm
ORD
- SJU
Nonstop4h 53m
American Airlines
Wed 8/267:14 pm
SJU
- ORD
1 stop14h 46m
American Airlines
Deal found 5/11![American Airlines logo]()
$222
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:40 am
ORD
- SJU
1 stop8h 57m
Delta
Wed 9/25:45 pm
SJU
- ORD
1 stop7h 12m
Delta
Deal found 5/11![Delta logo]()
$226
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:54 am
MDW
- SJU
1 stop10h 35m
Delta
Wed 9/22:40 pm
SJU
- MDW
1 stop8h 06m
Delta
Deal found 5/11![Delta logo]()
$226
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:14 pm
ORD
- SJU
Nonstop4h 53m
American Airlines
Wed 8/267:14 pm
SJU
- ORD
1 stop14h 46m
American Airlines
Deal found 5/12![American Airlines logo]()
$227
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:44 am
ORD
- SJU
Nonstop5h 00m
Frontier
Sat 8/226:00 am
SJU
- ORD
1 stop7h 25m
Frontier
Deal found 5/12![Frontier logo]()
$228
This Priceline deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:29 am
ORD
- SJU
Nonstop4h 57m
Frontier
Thu 9/105:12 pm
SJU
- ORD
1 stop23h 14m
Frontier
Deal found 5/12![Frontier logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:44 am
ORD
- SJU
Nonstop5h 00m
Frontier
Sat 8/226:00 am
SJU
- ORD
1 stop7h 25m
Frontier
Deal found 5/10![Frontier logo]()
$230
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:14 pm
ORD
- SJU
Nonstop4h 53m
American Airlines
Wed 9/26:51 am
SJU
- ORD
1 stop8h 24m
American Airlines
Deal found 5/12![American Airlines logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:29 am
ORD
- SJU
Nonstop4h 57m
Frontier
Fri 8/286:11 pm
SJU
- ORD
Nonstop5h 15m
Frontier
Deal found 5/13![Frontier logo]()
$235
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:48 pm
ORD
- SJU
1 stop7h 41m
Delta
Thu 8/275:49 pm
SJU
- ORD
1 stop7h 09m
Delta
Deal found 5/11![Delta logo]()
$236
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:50 am
MDW
- SJU
2 stops9h 15m
Southwest
Fri 8/286:00 am
SJU
- MDW
2 stops9h 30m
Southwest
Deal found 5/12![Southwest logo]()
$236
This American Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/305:00 am
ORD
- SJU
1 stop7h 43m
American Airlines
Fri 9/412:59 am
SJU
- ORD
Nonstop5h 01m
American Airlines
Deal found 5/11![American Airlines logo]()
$238
Best flights from Chicago to Luis Munoz Marin IntlDiscover carefully curated flight deals from Chicago to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 13, 2026.
Discover carefully curated flight deals from Chicago to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 13, 2026.
This Delta deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/288:03 am
ORD
- SJU
1 stop7h 42m
Delta
Sat 8/15:56 pm
SJU
- ORD
1 stop6h 57m
Delta
Deal found 5/8![Delta logo]()
$326
This Southwest deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:10 pm
MDW
- SJU
1 stop7h 10m
Southwest
Wed 8/55:15 am
SJU
- MDW
2 stops7h 50m
Southwest
Deal found 5/8![Southwest logo]()
$361
This United Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/292:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Tue 7/77:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 5/9![United Airlines logo]()
$405
This Delta deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:45 am
ORD
- SJU
1 stop11h 44m
Delta
Tue 7/2112:56 pm
SJU
- ORD
1 stop8h 37m
Delta
Deal found 5/8![Delta logo]()
$326
This Southwest deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/275:10 pm
MDW
- SJU
1 stop7h 10m
Southwest
Thu 7/3010:20 pm
SJU
- MDW
1 stop11h 55m
Southwest
Deal found 5/8![Southwest logo]()
$376
This Southwest deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/162:30 pm
MDW
- SJU
1 stop8h 45m
Southwest
Tue 7/216:00 am
SJU
- MDW
2 stops9h 30m
Southwest
Deal found 5/10![Southwest logo]()
$446
This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/292:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Wed 7/87:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 5/10![United Airlines logo]()
$551
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:35 am
MDW
- SJU
1 stop11h 50m
Southwest
Mon 7/610:20 pm
SJU
- MDW
1 stop12h 30m
Southwest
Deal found 5/13![Southwest logo]()
$476
This Southwest deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/291:00 pm
MDW
- SJU
2 stops10h 15m
Southwest
Tue 7/216:00 am
SJU
- MDW
2 stops9h 30m
Southwest
Deal found 5/8![Southwest logo]()
$495
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/172:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Sat 6/207:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 5/12![United Airlines logo]()
$603
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/178:49 am
ORD
- SJU
Nonstop4h 55m
United Airlines
Thu 5/213:56 pm
SJU
- ORD
Nonstop5h 19m
United Airlines
Deal found 5/12![United Airlines logo]()
$605
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/232:30 pm
MDW
- SJU
1 stop8h 45m
Southwest
Sun 7/266:25 am
SJU
- MDW
1 stop6h 55m
Southwest
Deal found 5/11![Southwest logo]()
$516
This United Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1611:00 am
ORD
- SJU
1 stop9h 24m
United Airlines
Mon 5/187:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 5/11![United Airlines logo]()
$610
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/1511:35 am
MDW
- SJU
1 stop11h 50m
Southwest
Fri 6/1910:20 pm
SJU
- MDW
1 stop11h 30m
Southwest
Deal found 5/11![Southwest logo]()
$529
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Sat 6/67:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 5/12![United Airlines logo]()
$622
This United Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/132:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Wed 6/171:00 am
SJU
- ORD
1 stop7h 42m
United Airlines
Deal found 5/12![United Airlines logo]()
$632
This Southwest deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:00 am
ORD
- SJU
2 stops17h 05m
Southwest
Wed 5/203:45 pm
SJU
- ORD
1 stop7h 10m
Southwest
Deal found 5/9![Southwest logo]()
$580
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:45 pm
MDW
- SJU
2 stops8h 55m
Southwest
Sun 5/2411:40 am
SJU
- MDW
1 stop8h 20m
Southwest
Deal found 5/11![Southwest logo]()
$580
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/208:00 am
MDW
- SJU
2 stops9h 10m
Southwest
Tue 6/308:35 pm
SJU
- MDW
1 stop13h 25m
Southwest
Deal found 5/12![Southwest logo]()
$594
This Southwest deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:35 pm
MDW
- SJU
1 stop13h 00m
Southwest
Sat 6/69:25 pm
SJU
- MDW
1 stop12h 05m
Southwest
Deal found 5/9![Southwest logo]()
$596
This Southwest deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/251:00 pm
MDW
- SJU
2 stops9h 40m
Southwest
Fri 5/293:45 pm
SJU
- MDW
1 stop9h 30m
Southwest
Deal found 5/9![Southwest logo]()
$606
This Southwest deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/261:00 pm
MDW
- SJU
1 stop8h 40m
Southwest
Fri 5/296:50 am
SJU
- MDW
2 stops8h 50m
Southwest
Deal found 5/10![Southwest logo]()
$611
This Southwest deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/186:00 am
ORD
- SJU
2 stops16h 40m
Southwest
Thu 5/213:45 pm
SJU
- ORD
1 stop7h 10m
Southwest
Deal found 5/8![Southwest logo]()
$620
This Southwest deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/242:00 pm
ORD
- SJU
2 stops18h 10m
Southwest
Sun 5/319:45 pm
SJU
- ORD
2 stops16h 05m
Southwest
Deal found 5/8![Southwest logo]()
$621
Last-minute flights from Chicago to Luis Munoz Marin IntlDiscover last-minute flight deals from Chicago to Luis Munoz Marin Intl. Data last updated May 13, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Luis Munoz Marin Intl. Data last updated May 13, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:52 pm
ORD
- SJU
1 stop7h 09m
Frontier
Fri 5/227:04 pm
SJU
- ORD
Nonstop5h 22m
Frontier
Deal found 5/10![Frontier logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:52 pm
ORD
- SJU
1 stop7h 09m
Frontier
Mon 8/314:05 pm
SJU
- ORD
1 stop8h 09m
Frontier
Deal found 5/11![Frontier logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/155:30 pm
ORD
- SJU
1 stop7h 38m
Frontier
Sat 5/237:04 pm
SJU
- ORD
Nonstop5h 22m
Frontier
Deal found 5/12![Frontier logo]()
$309
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/159:25 pm
MDW
- SJU
1 stop12h 00m
Southwest
Mon 8/315:30 am
SJU
- MDW
2 stops10h 25m
Southwest
Deal found 5/11![Southwest logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:52 pm
ORD
- SJU
1 stop7h 09m
Frontier
Tue 6/27:00 am
SJU
- ORD
2 stops25h 55m
Frontier
Deal found 5/11![Frontier logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:52 pm
ORD
- SJU
1 stop7h 09m
Frontier
Mon 6/16:00 am
SJU
- ORD
1 stop7h 37m
Frontier
Deal found 5/10![Frontier logo]()
$326
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:52 pm
ORD
- SJU
1 stop7h 09m
Frontier
Tue 6/27:00 am
SJU
- ORD
2 stops25h 55m
Frontier
Deal found 5/12![Frontier logo]()
$316
This American Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/256:29 am
ORD
- SJU
2 stops26h 10m
American Airlines
Tue 7/77:14 pm
SJU
- ORD
1 stop14h 54m
American Airlines
Deal found 5/11![American Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:16 am
ORD
- SJU
1 stop12h 13m
Frontier
Mon 7/67:14 pm
SJU
- ORD
Nonstop5h 13m
Frontier
Deal found 5/8![Frontier logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/294:59 pm
ORD
- SJU
1 stop8h 10m
Frontier
Fri 7/176:00 am
SJU
- ORD
1 stop7h 25m
Frontier
Deal found 5/12![Frontier logo]()
$323
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:35 am
ORD
- SJU
1 stop9h 11m
Delta
Sun 7/126:00 am
SJU
- ORD
1 stop9h 27m
Delta
Deal found 5/12![Delta logo]()
$266
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:00 am
MDW
- SJU
1 stop9h 46m
Delta
Sun 7/126:00 am
SJU
- MDW
1 stop11h 15m
Delta
Deal found 5/12![Delta logo]()
$356
One-way flights from Chicago to Luis Munoz Marin IntlSearch for one-way flight options from Chicago to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
Search for one-way flight options from Chicago to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
This American Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:00 pm
ORD
- SJU
Nonstop4h 58m
American Airlines
Deal found 5/10![American Airlines logo]()
$109
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
ORD
- SJU
1 stop9h 33m
Delta
Deal found 5/11![Delta logo]()
$113
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:46 pm
MDW
- SJU
1 stop8h 43m
Delta
Deal found 5/10![Delta logo]()
$113
This American Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:20 pm
ORD
- SJU
Nonstop4h 39m
American Airlines
Deal found 5/8![American Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:44 am
ORD
- SJU
Nonstop4h 57m
Frontier
Deal found 5/9![Frontier logo]()
$118
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:00 pm
ORD
- SJU
Nonstop4h 58m
American Airlines
Deal found 5/13![American Airlines logo]()
$119
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:28 am
ORD
- SJU
1 stop10h 09m
Delta
Deal found 5/13![Delta logo]()
$123
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3011:05 am
MDW
- SJU
1 stop10h 24m
Delta
Deal found 5/12![Delta logo]()
$123
This American Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/84:59 pm
ORD
- SJU
Nonstop4h 53m
American Airlines
Deal found 5/13![American Airlines logo]()
$124
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/712:44 am
ORD
- SJU
Nonstop5h 00m
Frontier
Deal found 5/11![Frontier logo]()
$129
This Super.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:13 pm
ORD
- SJU
1 stop7h 58m
Frontier
Deal found 5/12![Frontier logo]()
$132
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:05 am
ORD
- SJU
1 stop13h 56m
American Airlines
Deal found 5/12![American Airlines logo]()
$133
Find flight deals from Chicago to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Luis Munoz Marin Intl (SJU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $222 (American Airlines) |
One-way from | $109 (American Airlines) |
Popular in | December |
Cheapest in | January |
Average price | $356 |
Good round-trip deal | $306 or less |
Good one-way deal | $135 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Luis Munoz Marin Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 13, 2026.
Use the filters below to find and compare flights from Chicago to San Juan Luis Munoz Marin Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Tue 7/28
8:03 am-4:45 pm
1 stop7h 42m
San Juan Luis Munoz Marin Intl
Sat 8/1
5:56 pm-11:53 pm
1 stop6h 57m
$326
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Mon 7/13
9:45 am-10:29 pm
1 stop11h 44m
San Juan Luis Munoz Marin Intl
Tue 7/21
12:56 pm-8:33 pm
1 stop8h 37m
$326
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Thu 7/30
5:10 pm-1:20 am
1 stop7h 10m
San Juan Luis Munoz Marin Intl
Wed 8/5
5:15 am-12:05 pm
2 stops7h 50m
$361
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Mon 7/27
5:10 pm-1:20 am
1 stop7h 10m
San Juan Luis Munoz Marin Intl
Thu 7/30
10:20 pm-9:15 am
1 stop11h 55m
$376
Quickest round-trip
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Mon 6/29
2:38 pm-8:34 pm
Nonstop4h 56m
San Juan Luis Munoz Marin Intl
Tue 7/7
7:40 am-11:53 am
Nonstop5h 13m
$405
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Thu 7/16
2:30 pm-12:15 am
1 stop8h 45m
San Juan Luis Munoz Marin Intl
Tue 7/21
6:00 am-2:30 pm
2 stops9h 30m
$446
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Fri 7/3
11:35 am-12:25 am
1 stop11h 50m
San Juan Luis Munoz Marin Intl
Mon 7/6
10:20 pm-9:50 am
1 stop12h 30m
$476
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Mon 6/29
1:00 pm-12:15 am
2 stops10h 15m
San Juan Luis Munoz Marin Intl
Tue 7/21
6:00 am-2:30 pm
2 stops9h 30m
$495
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Thu 7/23
2:30 pm-12:15 am
1 stop8h 45m
San Juan Luis Munoz Marin Intl
Sun 7/26
6:25 am-12:20 pm
1 stop6h 55m
$516
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Mon 6/15
11:35 am-12:25 am
1 stop11h 50m
San Juan Luis Munoz Marin Intl
Fri 6/19
10:20 pm-8:50 am
1 stop11h 30m
$529
Showing 1-10 of 44 resultsSorted by cheapest first
Compare providers for flights from Chicago to Luis Munoz Marin Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Luis Munoz Marin Intl in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Chicago to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Chicago with our price prediction graph.
CHI-SJU
ORD-SJU
MDW-SJU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Chicago to San Juan Luis Munoz Marin Intl Airport
CHI-SJU
ORD-SJU
MDW-SJU
How far ahead should I book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport?
Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport?
Currently, May is the cheapest month in which you can book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport (average of $319). Flying from Chicago to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $635). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHI to SJU?
Find hourly flight availability from Chicago to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 13, 2026.
It’s typically best to fly out from Chicago to San Juan Luis Munoz Marin Intl Airport in the evening. Doing so could potentially save you 22% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from Chicago to San Juan Luis Munoz Marin Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Luis Munoz Marin Intl. Price data was last updated on May 9, 2026.
Travelers seeking maximum savings on their Chicago to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago to San Juan Luis Munoz Marin Intl Airport
Explore weekly flight availability from Chicago to Luis Munoz Marin Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 13, 2026.
The most flights from CHI to SJU are scheduled on a Monday (8 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).
How much does it cost to fly round-trip from Chicago to San Juan Luis Munoz Marin Intl Airport?
What’s the top layover airport for flights from Chicago to San Juan Luis Munoz Marin Intl Airport?
Share of 1-stop round-trip flights from Chicago to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Orlando (MCO) – chosen by Cheapflights users on 39% of 1-stop itineraries from Chicago to San Juan Luis Munoz Marin Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Chicago to San Juan Luis Munoz Marin Intl Airport?
Average round-trip fare for 1-stop flights from Chicago to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Boston (BOS) is the most affordable 1-stop option, with an average round-trip price of $132.
What’s the fastest layover option from Chicago to San Juan Luis Munoz Marin Intl Airport?
Shortest average travel time for 1-stop one-way flights from Chicago to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Philadelphia (PHL) have the shortest average one-way travel time for 1-stop routes: 6h 49m.
Which airport typically offers the quickest layover for flights from Chicago to San Juan Luis Munoz Marin Intl Airport?
Average layover duration for 1-stop one-way flights from Chicago to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 12m.
How often are flights from Chicago to San Juan delayed?
About 22% of weekly flights between Chicago and San Juan have experienced delays in the past year, with the average delay time being 140 minutes.
What is the most punctual flight time for Chicago to San Juan flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Chicago to San Juan flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 19% of flights being delayed.
The best insider tips for Chicago to San Juan Luis Munoz Marin Intl Airport flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to San Juan Luis Munoz Marin Intl Airport trip
Our travel experts
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Luis Munoz Marin Intl. Reviews last updated May 13, 2026.
Read reviews from past customers who have flown United Airlines,JetBlue, andAmerican Airlines from Chicago to San Juan Luis Munoz Marin Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Crew
8.1
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.6
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Related info for your journey
Find useful and relevant information for your journey from Chicago to Luis Munoz Marin Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsFajardo
Luquillo
Rio Grande
Dorado
Humacao
Bayamón
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Luis Munoz Marin Intl flight routes
Other flight options
Other flights from Chicago
Popular flights
Alternative routes for Chicago to Luis Munoz Marin Intl
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Luis Munoz Marin Intl by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Luis Munoz Marin Intl by cabin class
Find flights from Chicago to Luis Munoz Marin Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Luis Munoz Marin Intl
Explore flights to Luis Munoz Marin Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 13, 2026.
Chicago and Luis Munoz Marin Intl flights
Browse other Chicago and Luis Munoz Marin Intl flight options. Last updated on May 13, 2026.
Other flights from Chicago
Browse through other flights departing from Chicago. Flights are based on user searches made on Cheapflights and were last updated on May 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 7 airlines flying from Chicago to Luis Munoz Marin Intl
Discover the top 7 airlines that operate flights from Chicago to Luis Munoz Marin Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$119 | Average$235 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$122 | Average$289 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$132 | Average$387 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$140 | Average$314 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$256 | Average$504 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$309 | Average$509 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$352 | Average$489 | FlexibilityNo cancel fee | On-time63% |