$109+ Cheap flights from Chicago (CHI) to Luis Munoz Marin Intl (SJU)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SJU
Oct 10 — Oct 171
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 August or January, booked 82 days in advance, depart on a Tuesday or Monday and return on a Thursday
Cheap flight deals from Chicago to Luis Munoz Marin Intl
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Best
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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 September 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 September 10, 2026.
This Priceline deal was found by Cheapflights users on 9/6. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2311:53 pm -
Nonstop4h 39m
Thu 11/267:12 pm -
Nonstop5h 21m
Deal found 9/6![Frontier logo]()
$216
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 10/58:55 am -
Nonstop4h 49m
Sat 10/103:56 pm -
Nonstop5h 09m
Deal found 9/7![United Airlines logo]()
$217
This deal was found by Cheapflights users on 9/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:26 am -
1 stop9h 13m
Thu 11/57:00 am -
1 stop10h 37m
Deal found 9/8![Frontier logo]()
$219
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Mon 9/285:00 am -
1 stop7h 45m
Mon 9/281:00 am -
1 stop9h 00m
Deal found 9/5![United Airlines logo]()
$221
This Trip.com deal was found by Cheapflights users on 9/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:25 am -
1 stop7h 57m
Mon 10/56:30 am -
1 stop12h 21m
Deal found 9/8![Frontier logo]()
$221
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/173:00 pm -
1 stop7h 50m
Wed 10/213:56 pm -
Nonstop5h 09m
Deal found 9/7![United Airlines logo]()
$222
This American Airlines deal was found by Cheapflights users on 9/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:40 pm -
1 stop15h 40m
Wed 10/2112:41 pm -
1 stop12h 27m
Deal found 9/5![American Airlines logo]()
$226
This Southwest deal was found by Cheapflights users on 9/5. 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 10/172:40 pm -
1 stop6h 35m
Wed 10/215:50 am -
1 stop11h 15m
Deal found 9/5![Southwest logo]()
$226
This JetBlue deal was found by Cheapflights users on 9/5. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:50 pm -
1 stop6h 38m
Sun 12/66:01 am -
1 stop9h 25m
Deal found 9/5![JetBlue logo]()
$227
This deal was found by Cheapflights users on 9/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:15 am -
1 stop8h 51m
Thu 11/53:59 pm -
1 stop9h 48m
Deal found 9/8![Frontier logo]()
$227
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:00 am -
1 stop9h 28m
Tue 10/136:30 am -
1 stop14h 25m
Deal found 9/7![American Airlines logo]()
$228
This American Airlines deal was found by Cheapflights users on 9/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:29 pm -
1 stop13h 17m
Wed 10/2810:36 am -
1 stop8h 38m
Deal found 9/5![American Airlines logo]()
$231
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 September 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 September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 9/278:55 am -
Nonstop4h 49m
Sat 10/31:00 am -
1 stop7h 42m
Deal found 9/4![United Airlines logo]()
$222
This Southwest deal was found by Cheapflights users on 9/9. 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 10/128:40 pm -
1 stop11h 30m
Wed 10/148:15 am -
2 stops12h 05m
Deal found 9/9![Southwest logo]()
$301
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/248:55 am -
Nonstop4h 49m
Tue 10/2712:00 pm -
1 stop10h 30m
Deal found 9/9![United Airlines logo]()
$222
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:10 pm -
1 stop9h 26m
Wed 12/98:05 am -
1 stop8h 07m
Deal found 9/8![United Airlines logo]()
$256
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 10/201:55 pm -
1 stop8h 55m
Sat 10/241:05 am -
1 stop8h 57m
Deal found 9/7![United Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 9/8. 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.
Sat 12/510:20 am -
2 stops10h 35m
Wed 12/96:10 am -
2 stops8h 45m
Deal found 9/8![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/215:00 am -
1 stop7h 45m
Sat 9/262:55 pm -
1 stop9h 32m
Deal found 9/9![United Airlines logo]()
$266
This Southwest deal was found by Cheapflights users on 9/5. 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.
Fri 10/24:15 pm -
2 stops8h 05m
Mon 10/58:50 pm -
1 stop12h 35m
Deal found 9/5![Southwest logo]()
$336
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 11/72:16 pm -
Nonstop4h 44m
Mon 11/93:46 pm -
1 stop9h 40m
Deal found 9/5![United Airlines logo]()
$274
This Southwest deal was found by Cheapflights users on 9/9. 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 11/88:40 pm -
1 stop11h 50m
Fri 11/134:00 pm -
2 stops9h 05m
Deal found 9/9![Southwest logo]()
$336
This Southwest deal was found by Cheapflights users on 9/6. 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.
Fri 10/23:45 pm -
1 stop8h 35m
Fri 10/910:50 pm -
1 stop11h 45m
Deal found 9/6![Southwest logo]()
$353
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 12/72:16 pm -
Nonstop4h 44m
Mon 12/72:05 am -
1 stop9h 40m
Deal found 9/4![United Airlines logo]()
$306
This Southwest deal was found by Cheapflights users on 9/9. 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 9/213:15 pm -
1 stop6h 55m
Sat 9/265:05 am -
2 stops9h 05m
Deal found 9/9![Southwest logo]()
$367
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 12/72:16 pm -
Nonstop4h 44m
Fri 12/118:25 am -
Nonstop5h 24m
Deal found 9/4![United Airlines logo]()
$307
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sat 10/2411:25 am -
2 stops9h 10m
Mon 10/265:30 am -
2 stops8h 55m
Deal found 9/9![Southwest logo]()
$370
This Southwest deal was found by Cheapflights users on 9/6. 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.
Sun 2/281:00 pm -
1 stop8h 20m
Fri 3/57:25 am -
1 stop7h 45m
Deal found 9/6![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/238:55 am -
Nonstop4h 49m
Wed 10/287:25 am -
Nonstop5h 22m
Deal found 9/7![United Airlines logo]()
$346
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:16 pm -
Nonstop4h 44m
Tue 11/108:25 am -
Nonstop5h 22m
Deal found 9/8![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 9/6. 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.
Wed 2/31:40 pm -
1 stop6h 20m
Wed 2/176:15 am -
1 stop10h 40m
Deal found 9/6![Southwest logo]()
$403
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:52 am -
Nonstop4h 48m
Sun 11/88:25 am -
Nonstop5h 22m
Deal found 9/8![United Airlines logo]()
$359
Last-minute flights from Chicago to Luis Munoz Marin IntlDiscover last-minute flight deals from Chicago to Luis Munoz Marin Intl. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Luis Munoz Marin Intl. Data last updated September 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Mon 9/285:00 am -
1 stop7h 45m
Mon 9/281:00 am -
1 stop9h 00m
Deal found 9/5![United Airlines logo]()
$221
This Trip.com deal was found by Cheapflights users on 9/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:25 am -
1 stop7h 57m
Mon 10/56:30 am -
1 stop12h 21m
Deal found 9/8![Frontier logo]()
$221
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Mon 10/58:55 am -
Nonstop4h 49m
Sat 10/103:56 pm -
Nonstop5h 09m
Deal found 9/7![United Airlines logo]()
$217
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/65:00 am -
1 stop9h 28m
Tue 10/136:30 am -
1 stop14h 25m
Deal found 9/7![American Airlines logo]()
$228
This Orbitz deal was found by Cheapflights users on 9/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/104:41 pm -
1 stop21h 38m
Fri 10/1612:59 am -
1 stop22h 40m
Deal found 9/8![Frontier logo]()
$233
This American Airlines deal was found by Cheapflights users on 9/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:29 pm -
1 stop17h 02m
Wed 10/282:53 pm -
Nonstop5h 36m
Deal found 9/5![American Airlines logo]()
$227
This American Airlines deal was found by Cheapflights users on 9/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:40 pm -
1 stop15h 40m
Wed 10/2112:41 pm -
1 stop12h 27m
Deal found 9/5![American Airlines logo]()
$226
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Sat 10/178:55 am -
Nonstop4h 49m
Fri 10/231:00 am -
1 stop7h 42m
Deal found 9/6![United Airlines logo]()
$222
This Southwest deal was found by Cheapflights users on 9/5. 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 10/172:40 pm -
1 stop6h 35m
Wed 10/215:50 am -
1 stop11h 15m
Deal found 9/5![Southwest logo]()
$226
This deal was found by Cheapflights users on 9/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:26 am -
1 stop9h 13m
Thu 11/57:00 am -
1 stop10h 37m
Deal found 9/8![Frontier logo]()
$219
This deal was found by Cheapflights users on 9/8. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:15 am -
1 stop8h 51m
Thu 11/53:59 pm -
1 stop9h 48m
Deal found 9/8![Frontier logo]()
$227
This Frontier deal was found by Cheapflights users on 9/5. 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 10/246:21 am -
1 stop8h 45m
Wed 10/283:59 pm -
1 stop8h 48m
Deal found 9/5![Frontier logo]()
$232
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 September 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 September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 12/82:16 pm -
Nonstop4h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$109
This Super.com deal was found by Cheapflights users on 9/7. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:00 am -
1 stop8h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![JetBlue logo]()
$112
This American Airlines deal was found by Cheapflights users on 9/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/94:31 pm -
1 stop16h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![American Airlines logo]()
$113
This Southwest deal was found by Cheapflights users on 9/5. 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.
Tue 9/2912:45 pm -
2 stops8h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Southwest logo]()
$113
This American Airlines deal was found by Cheapflights users on 9/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:13 am -
Nonstop4h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$114
This Super.com deal was found by Cheapflights users on 9/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:25 am -
1 stop15h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$115
This Super.com deal was found by Cheapflights users on 9/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:25 am -
1 stop8h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Frontier logo]()
$115
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:50 am -
2 stops10h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$116
This Trip.com deal was found by Cheapflights users on 9/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:11 am -
1 stop7h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$117
This CheapOair deal was found by Cheapflights users on 9/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:15 am -
1 stop8h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$118
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:24 am -
1 stop8h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Frontier logo]()
$119
This Jetabroad deal was found by Cheapflights users on 9/5. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:25 am -
1 stop7h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$120
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $216 (Priceline) |
One-way from | $109 (United Airlines) |
Popular in | December |
Cheapest in | August |
Average price | $376 |
Good round-trip deal | $319 or less |
Good one-way deal | $156 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 7,457,451 searches. Data last updated September 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 Chicago O'Hare Intl - SJU San Juan Luis Munoz Marin Intl
ORDSJU
Chicago O'Hare Intl
Wed 11/18
1:00 pm-1:13 am
1 stop10h 13m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$113
ChicagoSan Juan
ORD Chicago O'Hare Intl - SJU San Juan Luis Munoz Marin Intl
ORDSJU
Chicago O'Hare Intl
Mon 9/14
1:30 pm-11:50 pm
1 stop9h 20m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$133
ChicagoSan Juan
MDW Chicago Midway - SJU San Juan Luis Munoz Marin Intl
MDWSJU
Chicago Midway
Wed 9/16
9:40 am-6:10 pm
1 stop7h 30m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$133
ChicagoSan Juan
MDW Chicago Midway - SJU San Juan Luis Munoz Marin Intl
MDWSJU
Chicago Midway
Tue 9/15
8:30 am-6:10 pm
1 stop8h 40m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$146
ChicagoSan Juan
ORD Chicago O'Hare Intl - SJU San Juan Luis Munoz Marin Intl
ORDSJU
Chicago O'Hare Intl
Tue 10/6
8:55 am-2:44 pm
Nonstop4h 49m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$154
Quickest round-trip
ChicagoSan Juan
ORD Chicago O'Hare Intl - SJU San Juan Luis Munoz Marin Intl
ORDSJU
Chicago O'Hare Intl
Sun 12/6
2:16 pm-9:00 pm
Nonstop4h 44m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$154
ChicagoSan Juan
ORD Chicago O'Hare Intl - SJU San Juan Luis Munoz Marin Intl
ORDSJU
Chicago O'Hare Intl
Sun 10/4
8:55 am-2:44 pm
Nonstop4h 49m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$154
ChicagoSan Juan
MDW Chicago Midway - SJU San Juan Luis Munoz Marin Intl
MDWSJU
Chicago Midway
Fri 10/2
4:15 pm-1:20 am
2 stops8h 05m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$168
ChicagoSan Juan
MDW Chicago Midway - SJU San Juan Luis Munoz Marin Intl
MDWSJU
Chicago Midway
Wed 11/4
3:00 pm-12:45 am
1 stop7h 45m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$168
ChicagoSan Juan
MDW Chicago Midway - SJU San Juan Luis Munoz Marin Intl
MDWSJU
Chicago Midway
Sun 11/8
8:40 pm-10:30 am
1 stop11h 50m
San Juan Luis Munoz Marin Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$168
Showing 1-10 of 38 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | 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
What is the cheapest month to book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport (average of $329). Flying from Chicago to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $541). 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 September 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 34% on the flight price compared to flying in the morning, which is usually more expensive.
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 September 10, 2026.
The most flights from CHI to SJU are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Chicago to San Juan Luis Munoz Marin Intl Airport?
Airfare is below average for this route at the moment.
Chicago to San Juan Luis Munoz Marin Intl Airport flights typically cost between $280 and $487 in November.The cheapest round-trip price found within the last 5 days was $216 on Frontier (Nov 23-Nov 26).
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 33% 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 Orlando (MCO) have the shortest average one-way travel time for 1-stop routes: 6h 20m.
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 Fort Lauderdale (FLL) offer the fastest connection on this route, with an average layover time of 0h 55m.
How often are flights from Chicago to San Juan delayed?
About 23% of weekly flights between Chicago and San Juan have experienced delays in the past year, with the average delay time being 142 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?
Wednesday tends to have the lowest number of delays on this route, whereas Monday 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 18% of flights being delayed.
How far ahead should I book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport?
Booking 79 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 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 September 5, 2026.
Travelers seeking maximum savings on their Chicago to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Saturday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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 September 10, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, 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
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentSarah,Aug 2024
MDW - AUS
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
Dorado
Rio Grande
Humacao
Bayamón
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Top 6 airlines flying from Chicago to Luis Munoz Marin Intl
Discover the top 6 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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$91 | Average$320 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$491 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$118 | Average$232 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$264 | Average$507 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$486 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$292 | Average$494 | FlexibilityNo cancel fee | On-time71% |