$159+ Cheap flights from St. Louis (STL) to Caribbean
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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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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
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Cheapest flights from St. Louis to CaribbeanExplore the most affordable flight options available from St. Louis to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
Explore the most affordable flight options available from St. Louis to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 8/236:25 pm
STL
- STT
2 stops20h 27m
American Airlines
Fri 8/284:42 pm
STT
- STL
1 stop6h 58m
American Airlines
Deal found 6/10![American Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/95:13 pm
STL
- STT
2 stops18h 38m
American Airlines
Tue 9/151:41 pm
STT
- STL
2 stops21h 48m
American Airlines
Deal found 6/10![American Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 9/167:05 am
STL
- NAS
1 stop5h 44m
Delta
Wed 9/231:15 pm
NAS
- STL
1 stop7h 29m
Delta
Deal found 6/9![Delta logo]()
$306
This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/166:30 am
STL
- NAS
2 stops10h 25m
American Airlines
Wed 9/232:34 pm
NAS
- STL
2 stops10h 53m
American Airlines
Deal found 6/9![American Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 6/8. 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.
Fri 8/2112:52 pm
STL
- SJU
1 stop8h 37m
Delta
Tue 8/257:00 am
SJU
- STL
1 stop8h 33m
Delta
Deal found 6/8![Delta logo]()
$336
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 9/23:25 pm
STL
- SJU
1 stop7h 34m
American Airlines
Wed 9/96:27 am
SJU
- STL
2 stops12h 03m
American Airlines
Deal found 6/10![American Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 8/185:00 am
STL
- STT
1 stop30h 53m
American Airlines
Mon 8/244:42 pm
STT
- STL
2 stops19h 10m
American Airlines
Deal found 6/11![American Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 6/6. 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.
Tue 9/158:00 am
STL
- SJU
2 stops11h 38m
United Airlines
Fri 9/181:00 am
SJU
- STL
2 stops12h 03m
United Airlines
Deal found 6/6![United Airlines logo]()
$346
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 12/16:45 pm
STL
- STT
2 stops18h 40m
American Airlines
Tue 12/86:17 pm
STT
- STL
2 stops16h 33m
American Airlines
Deal found 6/10![American Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 6/10. 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 10/292:05 pm
STL
- SJU
2 stops9h 30m
Southwest
Tue 11/36:45 am
SJU
- STL
2 stops14h 35m
Southwest
Deal found 6/10![Southwest logo]()
$356
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 8/306:00 am
STL
- SJU
2 stops9h 57m
American Airlines
Thu 9/31:38 pm
SJU
- STL
2 stops10h 02m
American Airlines
Deal found 6/10![American Airlines logo]()
$361
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Sun 9/68:00 am
STL
- SJU
2 stops11h 38m
United Airlines
Sat 9/121:00 am
SJU
- STL
2 stops10h 12m
United Airlines
Deal found 6/9![United Airlines logo]()
$369
Best flights from St. Louis to CaribbeanDiscover carefully curated flight deals from St. Louis to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
Discover carefully curated flight deals from St. Louis to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 8/184:54 pm
STL
- STT
2 stops18h 59m
American Airlines
Mon 8/244:42 pm
STT
- STL
2 stops19h 10m
American Airlines
Deal found 6/11![American Airlines logo]()
$284
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 9/167:05 am
STL
- NAS
1 stop5h 44m
Delta
Wed 9/231:15 pm
NAS
- STL
1 stop7h 29m
Delta
Deal found 6/9![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 6/10. 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 7/236:15 pm
STL
- SJU
1 stop6h 10m
Southwest
Tue 7/285:00 am
SJU
- STL
2 stops14h 25m
Southwest
Deal found 6/10![Southwest logo]()
$446
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 7/146:14 am
STL
- NAS
1 stop6h 33m
United Airlines
Wed 7/153:59 pm
NAS
- STL
1 stop8h 30m
United Airlines
Deal found 6/10![United Airlines logo]()
$498
This Justfly.com deal was found by Cheapflights users on 6/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:15 pm
STL
- GCM
1 stop19h 45m
Air Canada
Fri 11/61:10 pm
GCM
- STL
1 stop27h 20m
Air Canada
Deal found 6/9![Air Canada logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/45:06 pm
STL
- PUJ
1 stop20h 15m
Frontier
Sat 7/1111:39 am
PUJ
- STL
2 stops30h 58m
Frontier
Deal found 6/10![Frontier logo]()
$624
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 9/26:00 am
STL
- SJU
1 stop9h 38m
Delta
Wed 9/97:30 am
SJU
- STL
1 stop8h 08m
Delta
Deal found 6/8![Delta logo]()
$336
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 11/24:21 pm
STL
- STT
1 stop17h 46m
American Airlines
Fri 11/64:18 pm
STT
- STL
2 stops18h 09m
American Airlines
Deal found 6/10![American Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 6/10. 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.
Sun 7/199:15 am
STL
- NAS
1 stop8h 15m
Southwest
Wed 7/222:10 pm
NAS
- STL
2 stops9h 55m
Southwest
Deal found 6/10![Southwest logo]()
$446
This Delta deal was found by Cheapflights users on 6/9. 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 7/176:00 am
STL
- NAS
1 stop7h 01m
Delta
Wed 7/221:16 pm
NAS
- STL
1 stop11h 37m
Delta
Deal found 6/9![Delta logo]()
$418
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:44 am
STL
- NAS
1 stop6h 21m
American Airlines
Wed 7/222:18 pm
NAS
- STL
1 stop6h 45m
American Airlines
Deal found 6/6![American Airlines logo]()
$418
This Southwest deal was found by Cheapflights users on 6/9. 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 10/25:05 am
STL
- MBJ
1 stop6h 45m
Southwest
Tue 10/612:50 pm
MBJ
- STL
1 stop7h 10m
Southwest
Deal found 6/9![Southwest logo]()
$457
This Air Canada deal was found by Cheapflights users on 6/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:15 pm
STL
- GCM
1 stop19h 45m
Air Canada
Wed 11/41:10 pm
GCM
- STL
1 stop27h 20m
Air Canada
Deal found 6/9![Air Canada logo]()
$507
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:00 am
STL
- NAS
2 stops25h 35m
Delta
Wed 11/114:55 pm
NAS
- STL
1 stop4h 54m
Delta
Deal found 6/7![Delta logo]()
$420
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 10/135:30 am
STL
- PLS
1 stop5h 40m
American Airlines
Tue 10/201:35 pm
PLS
- STL
1 stop10h 56m
American Airlines
Deal found 6/10![American Airlines logo]()
$423
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 8/18:00 am
STL
- PLS
1 stop7h 05m
United Airlines
Thu 8/63:30 pm
PLS
- STL
1 stop8h 15m
United Airlines
Deal found 6/10![United Airlines logo]()
$513
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 8/196:00 am
STL
- PLS
1 stop5h 40m
Delta
Tue 8/252:05 pm
PLS
- STL
1 stop10h 16m
Delta
Deal found 6/9![Delta logo]()
$423
This Southwest deal was found by Cheapflights users on 6/9. 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 7/94:30 pm
STL
- SJU
1 stop6h 40m
Southwest
Thu 7/1610:20 pm
SJU
- STL
1 stop13h 00m
Southwest
Deal found 6/9![Southwest logo]()
$466
This Air Canada deal was found by Cheapflights users on 6/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:15 pm
STL
- PLS
1 stop19h 10m
Air Canada
Sun 12/61:30 pm
PLS
- STL
1 stop27h 00m
Air Canada
Deal found 6/6![Air Canada logo]()
$517
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 7/218:43 am
STL
- MBJ
1 stop6h 27m
United Airlines
Tue 7/2812:52 pm
MBJ
- STL
1 stop10h 44m
United Airlines
Deal found 6/10![United Airlines logo]()
$518
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/26:06 am
STL
- NAS
2 stops8h 03m
American Airlines
Mon 7/66:05 pm
NAS
- STL
1 stop6h 53m
American Airlines
Deal found 6/10![American Airlines logo]()
$462
This Southwest deal was found by Cheapflights users on 6/9. 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 7/55:05 am
STL
- NAS
1 stop7h 10m
Southwest
Sat 7/118:45 am
NAS
- STL
1 stop5h 45m
Southwest
Deal found 6/9![Southwest logo]()
$474
This Expedia deal was found by Cheapflights users on 6/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/72:40 pm
STL
- PUJ
2 stops24h 25m
Air Canada
Tue 10/135:05 pm
PUJ
- STL
1 stop26h 36m
Air Canada
Deal found 6/8![Air Canada logo]()
$534
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 9/276:15 am
STL
- MBJ
1 stop7h 15m
United Airlines
Thu 10/112:52 pm
MBJ
- STL
2 stops23h 21m
United Airlines
Deal found 6/10![United Airlines logo]()
$561
This Southwest deal was found by Cheapflights users on 6/10. 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.
Sat 8/86:45 am
STL
- SJU
2 stops10h 20m
Southwest
Tue 8/115:15 am
SJU
- STL
2 stops7h 55m
Southwest
Deal found 6/10![Southwest logo]()
$478
This Delta deal was found by Cheapflights users on 6/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/31:39 pm
STL
- NAS
2 stops20h 58m
Delta
Wed 7/83:26 pm
NAS
- STL
1 stop7h 49m
Delta
Deal found 6/7![Delta logo]()
$485
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 8/198:07 pm
STL
- GCM
2 stops17h 03m
American Airlines
Tue 8/252:10 pm
GCM
- STL
2 stops8h 45m
American Airlines
Deal found 6/11![American Airlines logo]()
$509
This Air Canada deal was found by Cheapflights users on 6/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:40 pm
STL
- UVF
1 stop22h 40m
Air Canada
Tue 8/183:15 pm
UVF
- STL
1 stop23h 47m
Air Canada
Deal found 6/7![Air Canada logo]()
$560
This United Airlines deal was found by Cheapflights users on 6/9. 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.
Tue 8/255:30 pm
STL
- PUJ
2 stops18h 10m
United Airlines
Thu 8/273:35 pm
PUJ
- STL
2 stops21h 27m
United Airlines
Deal found 6/9![United Airlines logo]()
$571
This Southwest deal was found by Cheapflights users on 6/10. 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.
Fri 7/174:30 pm
STL
- SJU
1 stop6h 40m
Southwest
Tue 7/285:00 am
SJU
- STL
1 stop7h 30m
Southwest
Deal found 6/10![Southwest logo]()
$490
Last-minute flights from St. Louis to CaribbeanDiscover last-minute flight deals from St. Louis to Caribbean. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Caribbean. Data last updated June 11, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 6/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/41:25 pm
STL
- SJU
1 stop6h 35m
Southwest
Thu 7/910:20 pm
SJU
- STL
1 stop13h 00m
Southwest
Deal found 6/7![Southwest logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sat 7/45:06 pm
STL
- SJU
1 stop20h 10m
Frontier
Thu 7/96:30 am
SJU
- STL
2 stops27h 27m
Frontier
Deal found 6/7![Frontier logo]()
$407
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/87:32 am
STL
- NAS
2 stops9h 22m
American Airlines
Wed 7/154:10 pm
NAS
- STL
1 stop7h 44m
American Airlines
Deal found 6/10![American Airlines logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/174:57 pm
STL
- SJU
2 stops43h 58m
Frontier
Wed 7/225:15 pm
SJU
- STL
1 stop25h 22m
Frontier
Deal found 6/10![Frontier logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/174:57 pm
STL
- SJU
2 stops43h 58m
Frontier
Tue 7/285:15 pm
SJU
- STL
1 stop16h 42m
Frontier
Deal found 6/10![Frontier logo]()
$410
This American Airlines deal was found by Cheapflights users on 6/8. 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.
Sat 7/188:06 pm
STL
- NAS
1 stop14h 23m
American Airlines
Thu 7/236:05 pm
NAS
- STL
1 stop6h 47m
American Airlines
Deal found 6/8![American Airlines logo]()
$378
This Priceline deal was found by Cheapflights users on 6/7. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/194:09 pm
STL
- SJU
1 stop14h 48m
Frontier
Sun 8/28:37 pm
SJU
- STL
1 stop28h 22m
Frontier
Deal found 6/7![Frontier logo]()
$416
This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:14 am
STL
- SJU
1 stop15h 43m
American Airlines
Mon 7/277:00 am
SJU
- STL
1 stop17h 32m
American Airlines
Deal found 6/9![American Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/254:57 pm
STL
- SJU
2 stops44h 03m
Frontier
Fri 7/315:15 pm
SJU
- STL
1 stop16h 42m
Frontier
Deal found 6/10![Frontier logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sun 7/266:34 pm
STL
- SJU
1 stop18h 42m
Frontier
Fri 7/316:45 am
SJU
- STL
2 stops27h 12m
Frontier
Deal found 6/7![Frontier logo]()
$417
This Priceline deal was found by Cheapflights users on 6/6. 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.
Thu 7/304:09 pm
STL
- SJU
1 stop9h 06m
Frontier
Wed 8/54:08 pm
SJU
- STL
1 stop8h 51m
Frontier
Deal found 6/6![Frontier logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Fri 7/314:57 pm
STL
- SJU
2 stops30h 44m
Frontier
Tue 8/45:15 pm
SJU
- STL
1 stop16h 42m
Frontier
Deal found 6/7![Frontier logo]()
$418
One-way flights from St. Louis to CaribbeanSearch for one-way flight options from St. Louis to Caribbean. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
Search for one-way flight options from St. Louis to Caribbean. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Wed 7/155:10 am
STL
- NAS
2 stops7h 51m
American Airlines
Deal found 6/10![American Airlines logo]()
$159
This Expedia deal was found by Cheapflights users on 6/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:10 pm
STL
- GCM
2 stops47h 20m
Air Canada
Deal found 6/6![Air Canada logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Tue 8/256:33 pm
STL
- SJU
2 stops42h 56m
Frontier
Deal found 6/9![Frontier logo]()
$163
This Air Canada deal was found by Cheapflights users on 6/6. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/212:15 pm
STL
- NAS
1 stop26h 15m
Air Canada
Deal found 6/6![Air Canada logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/74:57 pm
STL
- SJU
2 stops43h 44m
Frontier
Deal found 6/10![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Tue 8/46:34 pm
STL
- SJU
2 stops42h 07m
Frontier
Deal found 6/10![Frontier logo]()
$166
This Delta deal was found by Cheapflights users on 6/8. 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 8/2511:00 am
STL
- SJU
1 stop10h 29m
Delta
Deal found 6/8![Delta logo]()
$168
This Travelocity deal was found by Cheapflights users on 6/6. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/48:55 am
STL
- GCM
1 stop26h 35m
Air Canada
Deal found 6/6![Air Canada logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/104:57 pm
STL
- SJU
2 stops43h 58m
Frontier
Deal found 6/10![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sat 8/14:57 pm
STL
- SJU
2 stops44h 03m
Frontier
Deal found 6/7![Frontier logo]()
$171
This American Airlines deal was found by Cheapflights users on 6/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:00 am
STL
- SJU
2 stops11h 34m
American Airlines
Deal found 6/9![American Airlines logo]()
$172
This Delta deal was found by Cheapflights users on 6/6. 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 8/316:00 am
STL
- SJU
1 stop6h 42m
Delta
Deal found 6/6![Delta logo]()
$173
Find flight deals from St. Louis to Caribbean
Keep the following information in mind while searching for St. Louis to Caribbean flight deals. Data was last updated June 11, 2026.
Round-trip from | $284 (American Airlines) |
|---|---|
One-way from | $159 (American Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $475 |
Good round-trip deal | $571 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Caribbean 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 June 11, 2026.
Use the filters below to find and compare flights from St. Louis to Caribbean that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSaint Thomas Island
STL - STT
STLSTT
Lambert-St Louis
Tue 8/18
4:54 pm-12:53 pm
2 stops18h 59m
Saint Thomas Island Cyril E King
Mon 8/24
4:42 pm-10:52 am
2 stops19h 10m
$284
St. LouisNassau
STL - NAS
STLNAS
Lambert-St Louis
Wed 9/16
7:05 am-1:49 pm
1 stop5h 44m
Nassau Intl
Wed 9/23
1:15 pm-7:44 pm
1 stop7h 29m
$306
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Wed 9/2
6:00 am-4:38 pm
1 stop9h 38m
San Juan Luis Munoz Marin Intl
Wed 9/9
7:30 am-2:38 pm
1 stop8h 08m
$336
St. LouisSaint Thomas Island
STL - STT
STLSTT
Lambert-St Louis
Mon 11/2
4:21 pm-12:07 pm
1 stop17h 46m
Saint Thomas Island Cyril E King
Fri 11/6
4:18 pm-8:27 am
2 stops18h 09m
$345
St. LouisNassau
STL - NAS
STLNAS
Lambert-St Louis
Fri 7/17
6:00 am-2:01 pm
1 stop7h 01m
Nassau Intl
Wed 7/22
1:16 pm-11:53 pm
1 stop11h 37m
$418
St. LouisNassau
STL - NAS
STLNAS
Lambert-St Louis
Fri 7/17
9:44 am-5:05 pm
1 stop6h 21m
Nassau Intl
Wed 7/22
2:18 pm-8:03 pm
1 stop6h 45m
$418
St. LouisNassau
STL - NAS
STLNAS
Lambert-St Louis
Mon 11/9
9:00 am-11:35 am
2 stops25h 35m
Nassau Intl
Wed 11/11
4:55 pm-8:49 pm
1 stop4h 54m
$420
St. LouisProvidenciales
STL - PLS
STLPLS
Lambert-St Louis
Tue 10/13
5:30 am-12:10 pm
1 stop5h 40m
Providenciales
Tue 10/20
1:35 pm-11:31 pm
1 stop10h 56m
$423
St. LouisProvidenciales
STL - PLS
STLPLS
Lambert-St Louis
Wed 8/19
6:00 am-12:40 pm
1 stop5h 40m
Providenciales
Tue 8/25
2:05 pm-11:21 pm
1 stop10h 16m
$423
St. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Thu 7/23
6:15 pm-1:25 am
1 stop6h 10m
San Juan Luis Munoz Marin Intl
Tue 7/28
5:00 am-6:25 pm
2 stops14h 25m
$446
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Caribbean
Have a flexible travel schedule? Discover the best time to fly to Caribbean from St. Louis with our price prediction graph.
STL-STT
STL-NAS
STL-SJU
STL-GCM
STL-PUJ
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 St. Louis to Caribbean
STL-0CB
STL-STT
STL-NAS
STL-SJU
STL-GCM
What is the cheapest month to book a flight from St. Louis to Caribbean?
Currently, July is the cheapest month in which you can book a flight from St. Louis to Caribbean (average of $104). Flying from St. Louis to Caribbean in June is currently the most expensive (average of $1,142). 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 STL to CB?
Find hourly flight availability from St. Louis to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 11, 2026.
When flying from St. Louis to Caribbean, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How far ahead should I book a flight from St. Louis to Caribbean?
To ensure you get the cheapest price possible for a flight from St. Louis to Caribbean, you should look to book at least 77 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Caribbean
Get insights into the airlines that provide service to Caribbean. 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 Caribbean. Reviews last updated June 11, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from St. Louis to Caribbean to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Caribbean. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Caribbean
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Caribbean by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Caribbean by cabin class
Find flights from St. Louis to Caribbean, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Caribbean flights
Browse other St. Louis and Caribbean flight options. Last updated on June 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Caribbean countries
Consider these flights traveling to countries located in Caribbean.
St. Louis to Caribbean flights
Consider these flights traveling from St. Louis to Caribbean.
Top 5 airlines flying from St. Louis to Caribbean
Discover the top 5 airlines that operate flights from St. Louis to Caribbean. 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 June 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$453 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$174 | Average$596 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$220 | Average$661 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$225 | Average$532 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$250 | Average$645 | FlexibilityNo cancel fee | On-time71% |