$100+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SJU
Apr 9 — Apr 161
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Caribbean 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
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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 March 10, 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 March 10, 2026.
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.
Tue 3/244:51 pm
STL
- SJU
1 stop8h 12m
Frontier
Fri 4/109:10 pm
SJU
- STL
1 stop11h 41m
Frontier
Deal found 3/5![Frontier logo]()
$202
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:41 am
STL
- SJU
1 stop10h 19m
Frontier
Fri 4/176:30 am
SJU
- STL
1 stop17h 49m
Frontier
Deal found 3/5![Frontier logo]()
$213
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 5/94:55 pm
STL
- SJU
1 stop8h 06m
Frontier
Tue 5/123:08 am
SJU
- STL
1 stop21h 11m
Frontier
Deal found 3/6![Frontier logo]()
$221
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:12 am
STL
- SJU
1 stop14h 50m
American Airlines
Thu 4/307:00 pm
SJU
- STL
1 stop16h 16m
American Airlines
Deal found 3/5![American Airlines logo]()
$222
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/44:59 pm
STL
- SJU
1 stop8h 02m
Frontier
Thu 5/711:07 am
SJU
- STL
1 stop13h 12m
Frontier
Deal found 3/8![Frontier logo]()
$223
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:29 am
STL
- SJU
1 stop14h 36m
American Airlines
Thu 4/3011:59 pm
SJU
- STL
1 stop9h 55m
American Airlines
Deal found 3/9![American Airlines logo]()
$227
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 5/95:40 am
STL
- SJU
1 stop6h 40m
Southwest
Wed 5/135:35 am
SJU
- STL
2 stops8h 50m
Southwest
Deal found 3/5![Southwest logo]()
$232
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.
Tue 3/3111:27 am
STL
- SJU
1 stop12h 30m
Frontier
Tue 4/76:30 am
SJU
- STL
1 stop17h 55m
Frontier
Deal found 3/6![Frontier logo]()
$234
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.
Tue 3/314:51 pm
STL
- SJU
1 stop8h 12m
Frontier
Sat 4/49:48 am
SJU
- STL
1 stop14h 37m
Frontier
Deal found 3/5![Frontier logo]()
$239
This CheapOair deal was found by Cheapflights users on 3/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:59 pm
STL
- SJU
1 stop8h 02m
Frontier
Wed 4/226:30 am
SJU
- STL
1 stop17h 49m
Frontier
Deal found 3/10![Frontier logo]()
$242
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.
Wed 4/84:59 pm
STL
- SJU
1 stop8h 02m
Frontier
Sat 4/113:21 am
SJU
- STL
1 stop29h 30m
Frontier
Deal found 3/9![Frontier logo]()
$243
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:05 pm
STL
- NAS
1 stop27h 00m
Air Canada
Tue 4/289:10 pm
NAS
- STL
1 stop19h 15m
Air Canada
Deal found 3/7![Air Canada logo]()
$333
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 March 10, 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 March 10, 2026.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:45 am
STL
- SJU
2 stops12h 39m
United Airlines
Thu 5/77:20 am
SJU
- STL
2 stops14h 53m
United Airlines
Deal found 3/8![United Airlines logo]()
$312
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.
Mon 4/206:00 am
STL
- GCM
1 stop6h 00m
Delta
Mon 4/271:25 pm
GCM
- STL
1 stop7h 54m
Delta
Deal found 3/5![Delta logo]()
$342
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:21 pm
STL
- GCM
2 stops18h 10m
American Airlines
Sat 5/24:03 pm
GCM
- STL
2 stops16h 51m
American Airlines
Deal found 3/6![American Airlines logo]()
$347
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:05 am
STL
- MBJ
1 stop28h 15m
Air Canada
Sun 6/1412:30 pm
MBJ
- STL
1 stop23h 36m
Air Canada
Deal found 3/7![Air Canada logo]()
$416
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 3/304:51 pm
STL
- STT
1 stop19h 35m
Multiple Airlines
Sun 4/52:36 pm
STT
- STL
1 stop18h 15m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$427
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 5/152:25 pm
STL
- SJU
1 stop8h 00m
Southwest
Mon 5/185:35 am
SJU
- STL
2 stops10h 55m
Southwest
Deal found 3/9![Southwest logo]()
$448
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/114:55 pm
STL
- PUJ
2 stops25h 44m
Frontier
Sat 5/1611:07 am
PUJ
- STL
2 stops44h 43m
Frontier
Deal found 3/6![Frontier logo]()
$469
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/126:29 am
STL
- PLS
1 stop7h 41m
Delta
Wed 4/152:05 pm
PLS
- STL
1 stop10h 31m
Delta
Deal found 3/7![Delta logo]()
$363
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.
Sat 5/26:00 am
STL
- STT
1 stop8h 43m
United Airlines
Wed 5/61:22 pm
STT
- STL
1 stop10h 08m
United Airlines
Deal found 3/7![United Airlines logo]()
$372
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:24 am
STL
- PLS
1 stop6h 01m
American Airlines
Wed 4/291:00 pm
PLS
- STL
1 stop7h 30m
American Airlines
Deal found 3/5![American Airlines logo]()
$388
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:03 am
STL
- PLS
1 stop6h 27m
Delta
Fri 4/173:25 pm
PLS
- STL
1 stop9h 11m
Delta
Deal found 3/7![Delta logo]()
$363
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.
Mon 4/136:30 am
STL
- STT
1 stop8h 01m
United Airlines
Thu 4/162:10 pm
STT
- STL
1 stop8h 42m
United Airlines
Deal found 3/7![United Airlines logo]()
$372
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.
Tue 4/216:30 am
STL
- STT
1 stop8h 01m
United Airlines
Tue 4/282:10 pm
STT
- STL
1 stop8h 42m
United Airlines
Deal found 3/6![United Airlines logo]()
$372
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/126:00 am
STL
- PLS
1 stop5h 40m
Delta
Tue 5/263:25 pm
PLS
- STL
1 stop9h 34m
Delta
Deal found 3/8![Delta logo]()
$373
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.
Fri 3/274:51 pm
STL
- PUJ
1 stop18h 20m
Multiple Airlines
Wed 4/19:40 pm
PUJ
- STL
1 stop18h 45m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$459
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:54 pm
STL
- PLS
2 stops18h 21m
American Airlines
Mon 5/183:23 pm
PLS
- STL
2 stops19h 20m
American Airlines
Deal found 3/5![American Airlines logo]()
$418
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.
Mon 4/205:00 am
STL
- GCM
1 stop7h 10m
Southwest
Mon 4/271:05 pm
GCM
- STL
2 stops10h 10m
Southwest
Deal found 3/5![Southwest logo]()
$467
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 4/1310:58 am
STL
- PUJ
Nonstop4h 22m
Frontier
Mon 4/202:30 pm
PUJ
- STL
Nonstop5h 03m
Frontier
Deal found 3/5![Frontier logo]()
$506
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:00 am
STL
- PLS
1 stop5h 40m
Delta
Sat 5/23:25 pm
PLS
- STL
1 stop9h 11m
Delta
Deal found 3/7![Delta logo]()
$388
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.
Wed 4/2210:15 am
STL
- NAS
2 stops7h 15m
Southwest
Wed 4/292:10 pm
NAS
- STL
2 stops8h 50m
Southwest
Deal found 3/8![Southwest logo]()
$480
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:21 pm
STL
- GCM
2 stops18h 10m
American Airlines
Thu 5/142:10 pm
GCM
- STL
2 stops18h 20m
American Airlines
Deal found 3/9![American Airlines logo]()
$442
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.
Sat 5/94:55 pm
STL
- PUJ
1 stop24h 55m
Multiple Airlines
Sat 5/1611:07 am
PUJ
- STL
1 stop13h 12m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$498
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:00 am
STL
- MBJ
1 stop7h 30m
United Airlines
Tue 5/122:40 pm
MBJ
- STL
1 stop7h 50m
United Airlines
Deal found 3/8![United Airlines logo]()
$414
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/11:00 pm
STL
- PUJ
2 stops25h 25m
Air Canada
Fri 6/54:25 pm
PUJ
- STL
1 stop20h 41m
Air Canada
Deal found 3/5![Air Canada logo]()
$552
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.
Fri 4/246:00 am
STL
- PLS
1 stop7h 10m
Delta
Wed 4/293:25 pm
PLS
- STL
1 stop6h 54m
Delta
Deal found 3/6![Delta logo]()
$388
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:54 pm
STL
- GCM
2 stops18h 16m
American Airlines
Fri 5/222:42 pm
GCM
- STL
1 stop9h 17m
American Airlines
Deal found 3/5![American Airlines logo]()
$443
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 5/55:30 am
STL
- SXM
1 stop7h 00m
Southwest
Fri 5/152:25 pm
SXM
- STL
1 stop10h 15m
Southwest
Deal found 3/8![Southwest logo]()
$493
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.
Sun 5/37:45 am
STL
- SJU
2 stops12h 39m
United Airlines
Thu 5/77:20 am
SJU
- STL
2 stops14h 53m
United Airlines
Deal found 3/5![United Airlines logo]()
$418
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 4/64:59 pm
STL
- STT
1 stop19h 27m
Multiple Airlines
Sun 4/122:36 pm
STT
- STL
1 stop18h 15m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$515
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:55 pm
STL
- MBJ
1 stop14h 18m
American Airlines
Tue 4/2112:56 pm
MBJ
- STL
1 stop9h 28m
American Airlines
Deal found 3/7![American Airlines logo]()
$447
Last-minute flights from St. Louis to CaribbeanDiscover last-minute flight deals from St. Louis to Caribbean. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Caribbean. Data last updated March 10, 2026 and is based on user searches.
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.
Tue 3/244:51 pm
STL
- SJU
1 stop8h 12m
Frontier
Tue 4/73:16 am
SJU
- STL
1 stop21h 09m
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.
Thu 3/264:51 pm
STL
- SJU
1 stop8h 07m
Frontier
Fri 4/109:10 pm
SJU
- STL
1 stop11h 41m
Frontier
Deal found 3/5![Frontier logo]()
$221
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.
Tue 3/3111:27 am
STL
- SJU
1 stop12h 30m
Frontier
Tue 4/76:30 am
SJU
- STL
1 stop17h 55m
Frontier
Deal found 3/6![Frontier logo]()
$234
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.
Tue 3/314:51 pm
STL
- SJU
1 stop8h 12m
Frontier
Sat 4/49:48 am
SJU
- STL
1 stop14h 37m
Frontier
Deal found 3/5![Frontier logo]()
$239
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:59 pm
STL
- SJU
1 stop15h 19m
Frontier
Mon 4/133:08 am
SJU
- STL
1 stop21h 11m
Frontier
Deal found 3/8![Frontier logo]()
$223
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.
Tue 4/711:21 am
STL
- SJU
2 stops13h 40m
Frontier
Fri 4/173:23 pm
SJU
- STL
1 stop16h 27m
Frontier
Deal found 3/6![Frontier logo]()
$248
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.
Wed 4/84:59 pm
STL
- SJU
1 stop8h 02m
Frontier
Sat 4/113:21 am
SJU
- STL
1 stop29h 30m
Frontier
Deal found 3/9![Frontier logo]()
$243
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.
Thu 4/96:29 pm
STL
- SJU
1 stop24h 21m
Multiple Airlines
Fri 4/173:23 pm
SJU
- STL
1 stop16h 27m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$247
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/138:41 am
STL
- SJU
1 stop10h 19m
Frontier
Fri 4/176:30 am
SJU
- STL
1 stop17h 49m
Frontier
Deal found 3/5![Frontier logo]()
$213
This CheapOair deal was found by Cheapflights users on 3/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:59 pm
STL
- SJU
1 stop8h 02m
Frontier
Wed 4/226:30 am
SJU
- STL
1 stop17h 49m
Frontier
Deal found 3/10![Frontier logo]()
$242
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:29 am
STL
- SJU
1 stop14h 36m
American Airlines
Thu 4/3011:59 pm
SJU
- STL
1 stop9h 55m
American Airlines
Deal found 3/9![American Airlines logo]()
$227
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:12 am
STL
- SJU
1 stop14h 50m
American Airlines
Thu 4/307:00 pm
SJU
- STL
1 stop16h 16m
American Airlines
Deal found 3/5![American Airlines logo]()
$222
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 March 10, 2026.
Search for one-way flight options from St. Louis to Caribbean. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
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 3/244:51 pm
STL
- SJU
1 stop15h 03m
Frontier
Deal found 3/5![Frontier logo]()
$100
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:59 pm
STL
- SJU
1 stop8h 02m
Frontier
Deal found 3/6![Frontier logo]()
$101
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.
Thu 4/94:59 pm
STL
- SJU
1 stop26h 01m
Frontier
Deal found 3/9![Frontier logo]()
$107
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.
Tue 4/1411:42 am
STL
- SJU
1 stop7h 42m
Delta
Deal found 3/9![Delta logo]()
$111
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:29 am
STL
- SJU
1 stop14h 36m
American Airlines
Deal found 3/9![American Airlines logo]()
$116
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:44 pm
STL
- SJU
1 stop29h 38m
Frontier
Deal found 3/9![Frontier logo]()
$117
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.
Thu 3/264:51 pm
STL
- SJU
1 stop8h 07m
Frontier
Deal found 3/5![Frontier logo]()
$120
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 6/111:32 am
STL
- SJU
1 stop13h 24m
Frontier
Deal found 3/5![Frontier logo]()
$122
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.
Sun 4/199:10 am
STL
- SJU
2 stops11h 14m
United Airlines
Deal found 3/6![United Airlines logo]()
$124
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:29 am
STL
- SJU
1 stop14h 36m
American Airlines
Deal found 3/5![American Airlines logo]()
$126
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/266:00 am
STL
- PLS
1 stop5h 40m
Delta
Deal found 3/7![Delta logo]()
$137
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:03 pm
STL
- PLS
2 stops16h 57m
American Airlines
Deal found 3/7![American Airlines logo]()
$143
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 March 10, 2026.
Round-trip from | $202 (Priceline) |
|---|---|
One-way from | $100 (Super.com) |
Popular in | December |
Cheapest in | September |
Average price | $406 |
Good round-trip deal | $477 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 March 10, 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. LouisSan Juan
STL - SJU
STLSJU
Lambert-St Louis
Mon 5/4
7:45 am-9:24 pm
2 stops12h 39m
San Juan Luis Munoz Marin Intl
Thu 5/7
7:20 am-9:13 pm
2 stops14h 53m
$312
St. LouisGeorge Town
STL - GCM
STLGCM
Lambert-St Louis
Mon 4/20
6:00 am-12:00 pm
1 stop6h 00m
George Town Owen Roberts Intl
Mon 4/27
1:25 pm-9:19 pm
1 stop7h 54m
$342
St. LouisGeorge Town
STL - GCM
STLGCM
Lambert-St Louis
Sat 4/18
5:21 pm-11:31 am
2 stops18h 10m
George Town Owen Roberts Intl
Sat 5/2
4:03 pm-8:54 am
2 stops16h 51m
$347
St. LouisProvidenciales
STL - PLS
STLPLS
Lambert-St Louis
Sun 4/12
6:29 am-3:10 pm
1 stop7h 41m
Providenciales
Wed 4/15
2:05 pm-11:36 pm
1 stop10h 31m
$363
St. LouisProvidenciales
STL - PLS
STLPLS
Lambert-St Louis
Sun 4/12
7:03 am-2:30 pm
1 stop6h 27m
Providenciales
Fri 4/17
3:25 pm-11:36 pm
1 stop9h 11m
$363
St. LouisSaint Thomas Island
STL - STT
STLSTT
Lambert-St Louis
Sat 5/2
6:00 am-3:43 pm
1 stop8h 43m
Saint Thomas Island Cyril E King
Wed 5/6
1:22 pm-10:30 pm
1 stop10h 08m
$372
St. LouisSaint Thomas Island
STL - STT
STLSTT
Lambert-St Louis
Mon 4/13
6:30 am-3:31 pm
1 stop8h 01m
Saint Thomas Island Cyril E King
Thu 4/16
2:10 pm-9:52 pm
1 stop8h 42m
$372
St. LouisSaint Thomas Island
STL - STT
STLSTT
Lambert-St Louis
Tue 4/21
6:30 am-3:31 pm
1 stop8h 01m
Saint Thomas Island Cyril E King
Tue 4/28
2:10 pm-9:52 pm
1 stop8h 42m
$372
St. LouisProvidenciales
STL - PLS
STLPLS
Lambert-St Louis
Tue 5/12
6:00 am-12:40 pm
1 stop5h 40m
Providenciales
Tue 5/26
3:25 pm-11:59 pm
1 stop9h 34m
$373
St. LouisProvidenciales
STL - PLS
STLPLS
Lambert-St Louis
Fri 4/24
5:24 am-12:25 pm
1 stop6h 01m
Providenciales
Wed 4/29
1:00 pm-7:30 pm
1 stop7h 30m
$388
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-SJU
STL-NAS
STL-PLS
STL-MBJ
STL-GCM
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-SJU
STL-NAS
STL-PLS
STL-MBJ
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 $144). Flying from St. Louis to Caribbean in April is currently the most expensive (average of $246). 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 March 10, 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.
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 March 10, 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.
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Overall
8.0
Comfort
8.0
Food
7.0
Crew
8.6
Entertainment
7.5
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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 March 10, 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 6 airlines flying from St. Louis to Caribbean
Discover the top 6 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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$413 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$146 | Average$334 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$156 | Average$587 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$219 | Average$720 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$225 | Average$511 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$231 | Average$610 | FlexibilityNo cancel fee | On-time71% |