$94+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SJU
Apr 9 — Apr 161
Round-trip
1 adult, Economy
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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 October or January, booked 28 days in advance, depart on a Monday or Tuesday and return on a Friday
Cheap flight deals from Chicago to Luis Munoz Marin Intl
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Best
Last-minute
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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 March 10, 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 March 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Sun 5/178:24 pm
ORD
- SJU
1 stop25h 38m
Frontier
Fri 5/298:10 pm
SJU
- ORD
Nonstop5h 15m
Frontier
Deal found 3/9![Frontier logo]()
$192
This Cheapflightsfares deal was found by Cheapflights users on 3/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:50 am
ORD
- SJU
1 stop17h 16m
Spirit Airlines
Fri 5/83:21 am
SJU
- ORD
1 stop11h 44m
Spirit Airlines
Deal found 3/6![Spirit Airlines logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Tue 8/1812:59 am
ORD
- SJU
Nonstop4h 57m
Frontier
Wed 8/268:10 pm
SJU
- ORD
Nonstop5h 15m
Frontier
Deal found 3/5![Frontier logo]()
$195
This Frontier deal was found by Cheapflights users on 3/6. 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.
Tue 6/95:14 pm
ORD
- SJU
1 stop7h 42m
Frontier
Sat 6/278:10 pm
SJU
- ORD
Nonstop5h 15m
Frontier
Deal found 3/6![Frontier logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Sun 4/192:10 pm
ORD
- SJU
1 stop21h 23m
Frontier
Sat 4/2511:30 am
SJU
- ORD
1 stop13h 29m
Frontier
Deal found 3/5![Frontier logo]()
$197
This Travelocity deal was found by Cheapflights users on 3/5. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:55 am
ORD
- SJU
1 stop12h 03m
Multiple Airlines
Fri 4/176:00 am
SJU
- ORD
1 stop17h 54m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 8/1712:59 am
ORD
- SJU
Nonstop4h 57m
Frontier
Thu 8/278:10 pm
SJU
- ORD
Nonstop5h 15m
Frontier
Deal found 3/9![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1310:55 am
ORD
- SJU
1 stop12h 03m
Multiple Airlines
Sat 4/183:47 pm
SJU
- ORD
1 stop7h 52m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$200
This Frontier deal was found by Cheapflights users on 3/5. 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.
Sat 4/113:00 pm
ORD
- SJU
1 stop9h 18m
Frontier
Thu 4/1611:30 am
SJU
- ORD
1 stop13h 29m
Frontier
Deal found 3/5![Frontier logo]()
$202
This Frontier deal was found by Cheapflights users on 3/5. 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.
Mon 4/135:30 am
MDW
- SJU
1 stop13h 30m
Frontier
Sat 4/183:47 pm
SJU
- MDW
1 stop7h 27m
Frontier
Deal found 3/5![Frontier logo]()
$202
This CheapOair deal was found by Cheapflights users on 3/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:55 am
ORD
- SJU
1 stop12h 03m
Multiple Airlines
Thu 4/166:00 am
SJU
- ORD
1 stop16h 17m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/202:20 pm
ORD
- SJU
1 stop9h 09m
Frontier
Sat 4/2511:30 am
SJU
- ORD
1 stop13h 29m
Frontier
Deal found 3/5![Frontier logo]()
$204
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 March 10, 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 March 10, 2026.
This Delta deal was found by Cheapflights users on 3/5. 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 4/297:10 am
ORD
- SJU
1 stop8h 13m
Delta
Tue 5/52:45 pm
SJU
- ORD
1 stop8h 36m
Delta
Deal found 3/5![Delta logo]()
$266
This United Airlines deal was found by Cheapflights users on 3/4. 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.
Tue 5/52:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Mon 5/117:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 3/4![United Airlines logo]()
$331
This Southwest deal was found by Cheapflights users on 3/8. 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 5/112:40 pm
ORD
- SJU
2 stops8h 15m
Southwest
Fri 5/155:35 am
SJU
- ORD
2 stops17h 20m
Southwest
Deal found 3/8![Southwest logo]()
$404
This Delta deal was found by Cheapflights users on 3/5. 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 4/229:50 am
ORD
- SJU
1 stop9h 34m
Delta
Thu 4/302:45 pm
SJU
- ORD
1 stop10h 14m
Delta
Deal found 3/5![Delta logo]()
$266
This Delta deal was found by Cheapflights users on 3/6. 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 4/206:00 am
MDW
- SJU
1 stop9h 23m
Delta
Wed 4/297:30 am
SJU
- MDW
1 stop9h 56m
Delta
Deal found 3/6![Delta logo]()
$286
This Delta deal was found by Cheapflights users on 3/6. 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 4/2112:52 pm
MDW
- SJU
1 stop9h 20m
Delta
Sat 4/256:15 am
SJU
- MDW
1 stop11h 14m
Delta
Deal found 3/6![Delta logo]()
$314
This United Airlines deal was found by Cheapflights users on 3/6. 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 5/112:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Sat 5/167:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 3/6![United Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 3/6. 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 6/411:35 am
MDW
- SJU
1 stop11h 50m
Southwest
Sun 6/75:20 am
SJU
- MDW
2 stops8h 45m
Southwest
Deal found 3/6![Southwest logo]()
$416
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Thu 4/232:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Wed 4/293:56 pm
SJU
- ORD
Nonstop5h 19m
United Airlines
Deal found 3/9![United Airlines logo]()
$412
This Southwest deal was found by Cheapflights users on 3/5. 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 6/612:50 pm
MDW
- SJU
2 stops8h 30m
Southwest
Mon 6/85:30 am
SJU
- MDW
2 stops9h 35m
Southwest
Deal found 3/5![Southwest logo]()
$461
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Fri 4/242:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Wed 4/297:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 3/7![United Airlines logo]()
$423
This Southwest deal was found by Cheapflights users on 3/9. 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.
Thu 5/2812:50 pm
MDW
- SJU
2 stops10h 05m
Southwest
Mon 6/12:00 pm
SJU
- MDW
2 stops9h 20m
Southwest
Deal found 3/9![Southwest logo]()
$467
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Fri 6/52:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Mon 6/157:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 3/6![United Airlines logo]()
$425
This Southwest deal was found by Cheapflights users on 3/9. 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.
Fri 5/89:00 am
MDW
- SJU
2 stops10h 00m
Southwest
Mon 5/115:35 am
SJU
- MDW
2 stops8h 35m
Southwest
Deal found 3/9![Southwest logo]()
$484
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Fri 4/242:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Tue 4/287:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 3/7![United Airlines logo]()
$463
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1012:47 pm
MDW
- SJU
1 stop9h 28m
Delta
Tue 4/142:45 pm
SJU
- MDW
1 stop8h 43m
Delta
Deal found 3/9![Delta logo]()
$542
This Southwest deal was found by Cheapflights users on 3/9. 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.
Thu 6/46:00 am
ORD
- SJU
2 stops17h 15m
Southwest
Mon 6/1510:20 pm
SJU
- ORD
2 stops15h 55m
Southwest
Deal found 3/9![Southwest logo]()
$506
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/302:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Wed 5/67:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 3/5![United Airlines logo]()
$503
This Southwest deal was found by Cheapflights users on 3/8. 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 5/219:00 am
MDW
- SJU
2 stops10h 00m
Southwest
Tue 5/262:00 pm
SJU
- MDW
2 stops9h 15m
Southwest
Deal found 3/8![Southwest logo]()
$546
This United Airlines deal was found by Cheapflights users on 3/7. 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 5/142:38 pm
ORD
- SJU
Nonstop4h 56m
United Airlines
Sun 5/317:40 am
SJU
- ORD
Nonstop5h 13m
United Airlines
Deal found 3/7![United Airlines logo]()
$506
This Southwest deal was found by Cheapflights users on 3/8. 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 4/138:35 pm
MDW
- SJU
1 stop13h 00m
Southwest
Mon 4/206:50 am
SJU
- MDW
2 stops9h 15m
Southwest
Deal found 3/8![Southwest logo]()
$551
This Southwest deal was found by Cheapflights users on 3/8. 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 3/1211:35 am
MDW
- SJU
2 stops10h 20m
Southwest
Sat 3/145:30 am
SJU
- MDW
1 stop11h 40m
Southwest
Deal found 3/8![Southwest logo]()
$626
This Southwest deal was found by Cheapflights users on 3/5. 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 4/152:35 pm
MDW
- SJU
2 stops8h 05m
Southwest
Sun 4/195:35 am
SJU
- MDW
2 stops9h 10m
Southwest
Deal found 3/5![Southwest logo]()
$632
This Southwest deal was found by Cheapflights users on 3/8. 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.
Tue 3/318:15 am
MDW
- SJU
2 stops10h 15m
Southwest
Tue 4/72:00 pm
SJU
- MDW
2 stops9h 15m
Southwest
Deal found 3/8![Southwest logo]()
$651
Last-minute flights from Chicago to Luis Munoz Marin IntlDiscover last-minute flight deals from Chicago to Luis Munoz Marin Intl. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Luis Munoz Marin Intl. Data last updated March 10, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 3/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:30 am
MDW
- SJU
1 stop17h 31m
Frontier
Tue 4/143:08 am
SJU
- MDW
1 stop29h 56m
Frontier
Deal found 3/9![Frontier logo]()
$208
This Priceline deal was found by Cheapflights users on 3/5. 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 4/114:21 pm
ORD
- SJU
1 stop14h 35m
Frontier
Thu 4/166:00 am
SJU
- ORD
1 stop16h 17m
Frontier
Deal found 3/5![Frontier logo]()
$202
This CheapOair deal was found by Cheapflights users on 3/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:10 pm
ORD
- SJU
1 stop16h 39m
Multiple Airlines
Thu 4/166:00 am
SJU
- ORD
1 stop16h 17m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$210
This Travelocity deal was found by Cheapflights users on 3/5. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:55 am
ORD
- SJU
1 stop12h 03m
Multiple Airlines
Fri 4/176:00 am
SJU
- ORD
1 stop17h 54m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/1310:55 am
ORD
- SJU
1 stop12h 03m
Multiple Airlines
Sat 4/183:47 pm
SJU
- ORD
1 stop7h 52m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$200
This Frontier deal was found by Cheapflights users on 3/5. 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.
Mon 4/135:30 am
MDW
- SJU
1 stop13h 30m
Frontier
Sat 4/183:47 pm
SJU
- MDW
1 stop7h 27m
Frontier
Deal found 3/5![Frontier logo]()
$202
This CheapOair deal was found by Cheapflights users on 3/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:55 am
ORD
- SJU
1 stop12h 03m
Multiple Airlines
Thu 4/166:00 am
SJU
- ORD
1 stop16h 17m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Sun 4/192:10 pm
ORD
- SJU
1 stop21h 23m
Frontier
Sat 4/2511:30 am
SJU
- ORD
1 stop13h 29m
Frontier
Deal found 3/5![Frontier logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
Sun 4/193:08 pm
ORD
- SJU
1 stop22h 19m
Frontier
Wed 4/291:59 am
SJU
- ORD
1 stop10h 04m
Frontier
Deal found 3/6![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/202:20 pm
ORD
- SJU
1 stop9h 09m
Frontier
Sat 4/2511:30 am
SJU
- ORD
1 stop13h 29m
Frontier
Deal found 3/5![Frontier logo]()
$204
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/225:05 am
ORD
- SJU
1 stop13h 17m
Spirit Airlines
Wed 4/2912:57 pm
SJU
- ORD
1 stop12h 27m
Spirit Airlines
Deal found 3/5![Spirit Airlines logo]()
$207
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:50 am
ORD
- SJU
1 stop16h 08m
Spirit Airlines
Sat 5/24:34 pm
SJU
- ORD
Nonstop5h 15m
Spirit Airlines
Deal found 3/5![Spirit Airlines logo]()
$206
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 March 10, 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 March 10, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:55 am
ORD
- SJU
1 stop12h 03m
Spirit Airlines
Deal found 3/8![Spirit Airlines logo]()
$94
This Super.com deal was found by Cheapflights users on 3/5. 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.
Tue 3/3110:55 am
ORD
- SJU
1 stop12h 03m
Spirit Airlines
Deal found 3/5![Spirit Airlines logo]()
$95
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:50 am
ORD
- SJU
1 stop16h 08m
Spirit Airlines
Deal found 3/5![Spirit Airlines logo]()
$97
This Cheapflightsfares deal was found by Cheapflights users on 3/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1310:55 am
ORD
- SJU
1 stop12h 03m
Spirit Airlines
Deal found 3/9![Spirit Airlines logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
Thu 5/75:16 pm
ORD
- SJU
1 stop6h 37m
Frontier
Deal found 3/7![Frontier logo]()
$100
This Trip.com deal was found by Cheapflights users on 3/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:30 am
MDW
- SJU
1 stop16h 23m
Frontier
Deal found 3/6![Frontier logo]()
$100
This Booking.com deal was found by Cheapflights users on 3/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/113:00 pm
ORD
- SJU
1 stop9h 18m
Frontier
Deal found 3/5![Frontier logo]()
$101
This Booking.com deal was found by Cheapflights users on 3/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/116:30 am
MDW
- SJU
1 stop14h 03m
Frontier
Deal found 3/5![Frontier logo]()
$101
This Cheapflightsfares deal was found by Cheapflights users on 3/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:17 am
ORD
- SJU
1 stop10h 38m
Spirit Airlines
Deal found 3/5![Spirit Airlines logo]()
$103
This Cheapflightsfares deal was found by Cheapflights users on 3/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:55 am
ORD
- SJU
1 stop12h 03m
Spirit Airlines
Deal found 3/9![Spirit Airlines logo]()
$105
This Priceline deal was found by Cheapflights users on 3/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/251:27 pm
ORD
- SJU
1 stop21h 56m
Frontier
Deal found 3/9![Frontier logo]()
$107
This Priceline deal was found by Cheapflights users on 3/5. 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.
Sun 4/125:05 am
MDW
- SJU
1 stop29h 13m
Frontier
Deal found 3/5![Frontier logo]()
$107
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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $192 (Kiwi.com) |
One-way from | $94 (Cheapflightsfares) |
Popular in | December |
Cheapest in | October |
Average price | $408 |
Good round-trip deal | $282 or less |
Good one-way deal | $142 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 March 10, 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
Wed 4/29
7:10 am-4:23 pm
1 stop8h 13m
San Juan Luis Munoz Marin Intl
Tue 5/5
2:45 pm-10:21 pm
1 stop8h 36m
$266
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Wed 4/22
9:50 am-8:24 pm
1 stop9h 34m
San Juan Luis Munoz Marin Intl
Thu 4/30
2:45 pm-11:59 pm
1 stop10h 14m
$266
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Mon 4/20
6:00 am-4:23 pm
1 stop9h 23m
San Juan Luis Munoz Marin Intl
Wed 4/29
7:30 am-4:26 pm
1 stop9h 56m
$286
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Tue 4/21
12:52 pm-11:12 pm
1 stop9h 20m
San Juan Luis Munoz Marin Intl
Sat 4/25
6:15 am-4:29 pm
1 stop11h 14m
$314
Quickest round-trip
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Tue 5/5
2:38 pm-8:34 pm
Nonstop4h 56m
San Juan Luis Munoz Marin Intl
Mon 5/11
7:40 am-11:53 am
Nonstop5h 13m
$331
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Mon 5/11
2:40 pm-11:55 pm
2 stops8h 15m
San Juan Luis Munoz Marin Intl
Fri 5/15
5:35 am-9:55 pm
2 stops17h 20m
$404
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Mon 5/11
2:38 pm-8:34 pm
Nonstop4h 56m
San Juan Luis Munoz Marin Intl
Sat 5/16
7:40 am-11:53 am
Nonstop5h 13m
$410
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Thu 4/23
2:38 pm-8:34 pm
Nonstop4h 56m
San Juan Luis Munoz Marin Intl
Wed 4/29
3:56 pm-8:15 pm
Nonstop5h 19m
$412
ChicagoSan Juan
MDW - SJU
MDWSJU
Chicago Midway
Thu 6/4
11:35 am-12:25 am
1 stop11h 50m
San Juan Luis Munoz Marin Intl
Sun 6/7
5:20 am-1:05 pm
2 stops8h 45m
$416
ChicagoSan Juan
ORD - SJU
ORDSJU
Chicago O'Hare Intl
Fri 4/24
2:38 pm-8:34 pm
Nonstop4h 56m
San Juan Luis Munoz Marin Intl
Wed 4/29
7:40 am-11:53 am
Nonstop5h 13m
$423
Showing 1-10 of 46 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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 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*1 star |
- 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?
Use this chart to determine the optimal time to book a round-trip flight from Chicago to Luis Munoz Marin Intl. Price data was last updated on March 6, 2026.
Booking 28 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, April is the cheapest month in which you can book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport (average of $91). Flying from Chicago to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $224). 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 March 10, 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 26% on the flight price compared to flying at noon, 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 February 21, 2026.
Travelers seeking maximum savings on their Chicago to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Tuesday evenings 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 March 10, 2026.
The most flights from CHI to SJU are scheduled on a Sunday (13 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 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.
Atlanta (ATL) – chosen by Cheapflights users on 45% 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 19% of weekly flights between Chicago and San Juan have experienced delays in the past year, with the average delay time being 139 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, American Airlines have had the lowest number of delays on this route, with just 17% 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 March 10, 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.
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Overall
7.4
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
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
Dorado
Luquillo
Rio Grande
Humacao
Bayamón
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Chicago and Luis Munoz Marin Intl flights
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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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$106 | Average$289 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$119 | Average$236 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$132 | Average$416 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$138 | Average$311 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$253 | Average$498 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$313 | Average$522 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$377 | Average$488 | FlexibilityNo cancel fee | On-time63% |