$195+ Cheap flights from Seattle (SEA) 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jul 23 — Jul 301
Round-trip
1 adult, Economy
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Find cheap flights from Seattle 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 Seattle to CaribbeanExplore the most affordable flight options available from Seattle to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
Explore the most affordable flight options available from Seattle to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 23, 2026.
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/135:00 am
SEA
- STX
2 stops12h 43m
American Airlines
Tue 8/258:04 am
STX
- SEA
2 stops15h 48m
American Airlines
Deal found 6/21![American Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/1211:56 pm
SEA
- STX
2 stops17h 47m
American Airlines
Mon 8/178:04 am
STX
- SEA
1 stop19h 16m
American Airlines
Deal found 6/21![American Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:45 am
SEA
- SJU
2 stops14h 10m
Delta
Thu 12/107:00 am
SJU
- SEA
2 stops17h 27m
Delta
Deal found 6/21![Delta logo]()
$464
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/26:25 am
SEA
- SJU
1 stop14h 34m
American Airlines
Tue 9/86:00 am
SJU
- SEA
1 stop21h 20m
American Airlines
Deal found 6/21![American Airlines logo]()
$469
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/2611:56 pm
SEA
- STX
2 stops17h 47m
American Airlines
Fri 9/48:04 am
STX
- SEA
1 stop19h 16m
American Airlines
Deal found 6/22![American Airlines logo]()
$474
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/178:21 pm
SEA
- SJU
1 stop10h 22m
American Airlines
Tue 8/257:30 am
SJU
- SEA
1 stop11h 50m
American Airlines
Deal found 6/18![American Airlines logo]()
$474
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 10/155:31 pm
SEA
- SJU
1 stop18h 31m
American Airlines
Sat 10/243:42 pm
SJU
- SEA
1 stop11h 33m
American Airlines
Deal found 6/20![American Airlines logo]()
$477
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/511:56 pm
SEA
- STX
2 stops17h 47m
American Airlines
Sat 9/125:01 pm
STX
- SEA
2 stops20h 08m
American Airlines
Deal found 6/21![American Airlines logo]()
$479
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/235:20 am
SEA
- SJU
2 stops12h 45m
Southwest
Sun 9/276:35 am
SJU
- SEA
2 stops13h 05m
Southwest
Deal found 6/22![Southwest logo]()
$480
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/225:00 am
SEA
- SJU
1 stop9h 38m
United Airlines
Fri 8/281:00 am
SJU
- SEA
2 stops17h 29m
United Airlines
Deal found 6/20![United Airlines logo]()
$481
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/711:59 pm
SEA
- SJU
1 stop12h 13m
United Airlines
Mon 9/141:00 am
SJU
- SEA
2 stops14h 48m
United Airlines
Deal found 6/20![United Airlines logo]()
$483
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 11/103:51 pm
SEA
- SJU
1 stop9h 39m
American Airlines
Tue 11/247:40 am
SJU
- SEA
1 stop20h 00m
American Airlines
Deal found 6/18![American Airlines logo]()
$485
Best flights from Seattle to CaribbeanDiscover carefully curated flight deals from Seattle to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
Discover carefully curated flight deals from Seattle to Caribbean that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 23, 2026.
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/1211:56 pm
SEA
- STX
2 stops17h 47m
American Airlines
Tue 8/188:04 am
STX
- SEA
1 stop19h 16m
American Airlines
Deal found 6/22![American Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:45 am
SEA
- SJU
2 stops14h 10m
Delta
Sat 12/127:15 am
SJU
- SEA
2 stops15h 15m
Delta
Deal found 6/18![Delta logo]()
$464
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 10/155:00 am
SEA
- SJU
2 stops12h 55m
Southwest
Sat 10/2412:10 pm
SJU
- SEA
2 stops13h 25m
Southwest
Deal found 6/20![Southwest logo]()
$464
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/195:20 pm
SEA
- MBJ
2 stops16h 23m
United Airlines
Sun 9/272:40 pm
MBJ
- SEA
1 stop10h 05m
United Airlines
Deal found 6/20![United Airlines logo]()
$552
This Copa Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:52 pm
SEA
- AUA
2 stops24h 06m
Copa Airlines
Thu 8/277:10 am
AUA
- SEA
2 stops19h 16m
Copa Airlines
Deal found 6/18![Copa Airlines logo]()
$752
This Cheapflightsfares deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:44 pm
SEA
- AUA
1 stop13h 56m
JetBlue
Sun 9/64:50 pm
AUA
- SEA
1 stop20h 43m
JetBlue
Deal found 6/20![JetBlue logo]()
$801
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/138:21 pm
SEA
- STX
1 stop15h 43m
American Airlines
Tue 8/258:04 am
STX
- SEA
1 stop19h 16m
American Airlines
Deal found 6/23![American Airlines logo]()
$460
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:05 pm
SEA
- SJU
1 stop10h 55m
Delta
Fri 12/111:55 pm
SJU
- SEA
2 stops14h 16m
Delta
Deal found 6/19![Delta logo]()
$464
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/511:56 pm
SEA
- STX
2 stops17h 47m
American Airlines
Sat 9/125:01 pm
STX
- SEA
2 stops20h 08m
American Airlines
Deal found 6/20![American Airlines logo]()
$479
This Southwest deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/66:15 pm
SEA
- SJU
2 stops11h 55m
Southwest
Wed 8/121:45 pm
SJU
- SEA
2 stops12h 20m
Southwest
Deal found 6/18![Southwest logo]()
$534
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 10/267:00 am
SEA
- SJU
1 stop10h 00m
United Airlines
Fri 10/301:21 pm
SJU
- SEA
1 stop11h 02m
United Airlines
Deal found 6/22![United Airlines logo]()
$554
This Southwest deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 10/284:25 pm
SEA
- NAS
2 stops17h 50m
Southwest
Tue 11/31:10 pm
NAS
- SEA
2 stops12h 05m
Southwest
Deal found 6/21![Southwest logo]()
$550
This Delta deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 9/1810:40 pm
SEA
- MBJ
1 stop10h 54m
Delta
Tue 9/2912:59 pm
MBJ
- SEA
1 stop12h 21m
Delta
Deal found 6/23![Delta logo]()
$552
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 10/37:00 am
SEA
- SJU
2 stops13h 50m
United Airlines
Fri 10/161:00 am
SJU
- SEA
2 stops13h 27m
United Airlines
Deal found 6/19![United Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 9/135:34 pm
SEA
- SXM
2 stops16h 48m
American Airlines
Sat 9/192:53 pm
SXM
- SEA
1 stop22h 09m
American Airlines
Deal found 6/23![American Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/186:15 pm
SEA
- SJU
2 stops14h 42m
United Airlines
Sat 10/37:00 am
SJU
- SEA
2 stops13h 37m
United Airlines
Deal found 6/20![United Airlines logo]()
$554
This United deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1210:58 pm
SEA
- STX
2 stops30h 22m
Multiple Airlines
Tue 8/184:55 pm
STX
- SEA
3 stops48h 57m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,351
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/176:15 pm
SEA
- NAS
2 stops15h 00m
Southwest
Mon 8/241:10 pm
NAS
- SEA
2 stops12h 45m
Southwest
Deal found 6/22![Southwest logo]()
$572
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 11/2711:05 pm
SEA
- SJU
1 stop10h 55m
Delta
Sat 12/57:15 am
SJU
- SEA
2 stops15h 15m
Delta
Deal found 6/21![Delta logo]()
$584
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/2711:56 pm
SEA
- MBJ
1 stop11h 16m
American Airlines
Thu 9/101:54 pm
MBJ
- SEA
2 stops21h 31m
American Airlines
Deal found 6/20![American Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/2211:59 pm
SEA
- SJU
1 stop12h 43m
United Airlines
Sat 8/297:00 am
SJU
- SEA
2 stops16h 43m
United Airlines
Deal found 6/18![United Airlines logo]()
$564
This Copa Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2512:20 pm
SEA
- AUA
2 stops43h 52m
Copa Airlines
Mon 11/303:46 pm
AUA
- SEA
2 stops36h 47m
Copa Airlines
Deal found 6/22![Copa Airlines logo]()
$778
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 10/283:55 pm
SEA
- NAS
1 stop16h 56m
Delta
Tue 11/31:16 pm
NAS
- SEA
1 stop8h 43m
Delta
Deal found 6/21![Delta logo]()
$590
This American Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 10/276:22 pm
SEA
- STT
2 stops13h 18m
American Airlines
Sun 11/16:17 pm
STT
- SEA
2 stops19h 28m
American Airlines
Deal found 6/23![American Airlines logo]()
$564
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 11/138:40 pm
SEA
- STT
2 stops15h 40m
United Airlines
Sun 11/223:00 pm
STT
- SEA
1 stop11h 53m
United Airlines
Deal found 6/22![United Airlines logo]()
$574
This Southwest deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/2711:05 pm
SEA
- MBJ
2 stops12h 10m
Southwest
Wed 9/212:55 pm
MBJ
- SEA
2 stops12h 10m
Southwest
Deal found 6/21![Southwest logo]()
$647
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/2611:59 pm
SEA
- NAS
1 stop8h 52m
Delta
Mon 8/311:16 pm
NAS
- SEA
1 stop13h 41m
Delta
Deal found 6/20![Delta logo]()
$590
This Copa Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:52 pm
SEA
- PUJ
2 stops19h 44m
Copa Airlines
Wed 8/265:37 am
PUJ
- SEA
2 stops20h 49m
Copa Airlines
Deal found 6/19![Copa Airlines logo]()
$793
This American Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/255:02 pm
SEA
- STT
2 stops16h 51m
American Airlines
Thu 9/101:41 pm
STT
- SEA
2 stops22h 44m
American Airlines
Deal found 6/22![American Airlines logo]()
$582
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/311:20 pm
SEA
- SXM
1 stop10h 13m
United Airlines
Sat 7/113:50 pm
SXM
- SEA
2 stops19h 05m
United Airlines
Deal found 6/19![United Airlines logo]()
$584
Last-minute flights from Seattle to CaribbeanDiscover last-minute flight deals from Seattle to Caribbean. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Caribbean. Data last updated June 23, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/35:20 pm
SEA
- SXM
2 stops16h 13m
United Airlines
Sat 7/113:50 pm
SXM
- SEA
2 stops19h 05m
United Airlines
Deal found 6/19![United Airlines logo]()
$584
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/69:35 pm
SEA
- SXM
2 stops15h 09m
American Airlines
Mon 7/134:45 pm
SXM
- SEA
1 stop22h 11m
American Airlines
Deal found 6/20![American Airlines logo]()
$598
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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
SEA
- SJU
1 stop14h 49m
American Airlines
Fri 8/147:00 am
SJU
- SEA
1 stop16h 58m
American Airlines
Deal found 6/19![American Airlines logo]()
$504
This Trip.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/157:06 pm
SEA
- SJU
2 stops28h 09m
Frontier
Thu 8/133:10 am
SJU
- SEA
2 stops34h 58m
Frontier
Deal found 6/19![Frontier logo]()
$579
This United Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/1611:49 pm
SEA
- NAS
1 stop13h 07m
United Airlines
Mon 7/202:53 pm
NAS
- SEA
1 stop10h 49m
United Airlines
Deal found 6/18![United Airlines logo]()
$600
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/207:54 pm
SEA
- NAS
2 stops14h 53m
United Airlines
Mon 7/274:58 pm
NAS
- SEA
1 stop8h 44m
United Airlines
Deal found 6/22![United Airlines logo]()
$611
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:11 pm
SEA
- NAS
1 stop12h 46m
United Airlines
Wed 7/293:59 pm
NAS
- SEA
1 stop10h 17m
United Airlines
Deal found 6/22![United Airlines logo]()
$590
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/243:28 pm
SEA
- NAS
1 stop17h 01m
American Airlines
Sun 7/266:05 pm
NAS
- SEA
1 stop18h 20m
American Airlines
Deal found 6/21![American Airlines logo]()
$595
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 7/2511:00 pm
SEA
- MBJ
1 stop10h 43m
United Airlines
Sat 8/222:40 pm
MBJ
- SEA
2 stops21h 21m
United Airlines
Deal found 6/23![United Airlines logo]()
$589
This American Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/286:00 am
SEA
- SJU
1 stop14h 48m
American Airlines
Mon 8/1012:55 am
SJU
- SEA
1 stop11h 34m
American Airlines
Deal found 6/21![American Airlines logo]()
$575
This American Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/295:40 pm
SEA
- STT
1 stop19h 26m
American Airlines
Mon 8/171:49 pm
STT
- SEA
1 stop13h 31m
American Airlines
Deal found 6/19![American Airlines logo]()
$587
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 7/315:10 am
SEA
- SJU
1 stop14h 49m
American Airlines
Mon 8/310:35 am
SJU
- SEA
1 stop16h 32m
American Airlines
Deal found 6/18![American Airlines logo]()
$580
One-way flights from Seattle to CaribbeanSearch for one-way flight options from Seattle to Caribbean. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
Search for one-way flight options from Seattle to Caribbean. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/117:06 pm
SEA
- SJU
2 stops26h 35m
Frontier
Deal found 6/22![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/68:53 pm
SEA
- SJU
2 stops48h 48m
Frontier
Deal found 6/23![Frontier logo]()
$209
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 12/22:00 pm
SEA
- SXM
2 stops20h 20m
Southwest
Deal found 6/22![Southwest logo]()
$212
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 10/55:00 pm
SEA
- NAS
2 stops17h 15m
Southwest
Deal found 6/22![Southwest logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/147:06 pm
SEA
- SJU
2 stops26h 35m
Frontier
Deal found 6/21![Frontier logo]()
$222
This SmartFares deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:55 pm
SEA
- SJU
1 stop12h 34m
JetBlue
Deal found 6/19![JetBlue logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/28:53 pm
SEA
- SJU
2 stops48h 48m
Frontier
Deal found 6/22![Frontier logo]()
$228
This Cheapflightsfares deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/199:40 pm
SEA
- SJU
1 stop12h 54m
JetBlue
Deal found 6/21![JetBlue logo]()
$230
This Southwest deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/185:20 am
SEA
- SJU
2 stops12h 45m
Southwest
Deal found 6/20![Southwest logo]()
$232
This American Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/1811:16 pm
SEA
- SJU
2 stops12h 22m
American Airlines
Deal found 6/18![American Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/2411:56 pm
SEA
- SJU
2 stops11h 55m
American Airlines
Deal found 6/20![American Airlines logo]()
$238
This Southwest deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 8/155:40 pm
SEA
- NAS
2 stops15h 35m
Southwest
Deal found 6/19![Southwest logo]()
$241
Find flight deals from Seattle to Caribbean
Keep the following information in mind while searching for Seattle to Caribbean flight deals. Data was last updated June 23, 2026.
Round-trip from | $444 (American Airlines) |
|---|---|
One-way from | $195 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $656 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle 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 23, 2026.
Use the filters below to find and compare flights from Seattle to Caribbean that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleChristiansted
SEA - STX
SEASTX
Seattle/Tacoma Intl
Wed 8/12
11:56 pm-8:43 pm
2 stops17h 47m
Christiansted Henry Rohlsen
Tue 8/18
8:04 am-12:20 am
1 stop19h 16m
$449
SeattleChristiansted
SEA - STX
SEASTX
Seattle/Tacoma Intl
Thu 8/13
8:21 pm-3:04 pm
1 stop15h 43m
Christiansted Henry Rohlsen
Tue 8/25
8:04 am-12:20 am
1 stop19h 16m
$460
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sat 12/5
5:45 am-11:55 pm
2 stops14h 10m
San Juan Luis Munoz Marin Intl
Sat 12/12
7:15 am-6:30 pm
2 stops15h 15m
$464
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 10/15
5:00 am-8:55 pm
2 stops12h 55m
San Juan Luis Munoz Marin Intl
Sat 10/24
12:10 pm-10:35 pm
2 stops13h 25m
$464
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sat 12/5
11:05 pm-2:00 pm
1 stop10h 55m
San Juan Luis Munoz Marin Intl
Fri 12/11
1:55 pm-12:11 am
2 stops14h 16m
$464
SeattleChristiansted
SEA - STX
SEASTX
Seattle/Tacoma Intl
Sat 9/5
11:56 pm-8:43 pm
2 stops17h 47m
Christiansted Henry Rohlsen
Sat 9/12
5:01 pm-10:09 am
2 stops20h 08m
$479
SeattleSimpson Bay
SEA - SXM
SEASXM
Seattle/Tacoma Intl
Sun 9/13
5:34 pm-1:22 pm
2 stops16h 48m
Simpson Bay Princess Juliana
Sat 9/19
2:53 pm-10:02 am
1 stop22h 09m
$506
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 8/6
6:15 pm-9:10 am
2 stops11h 55m
San Juan Luis Munoz Marin Intl
Wed 8/12
1:45 pm-11:05 pm
2 stops12h 20m
$534
SeattleNassau
SEA - NAS
SEANAS
Seattle/Tacoma Intl
Wed 10/28
4:25 pm-1:15 pm
2 stops17h 50m
Nassau Intl
Tue 11/3
1:10 pm-10:15 pm
2 stops12h 05m
$550
SeattleMontego Bay
SEA - MBJ
SEAMBJ
Seattle/Tacoma Intl
Sat 9/19
5:20 pm-11:43 am
2 stops16h 23m
Montego Bay Sangster Intl
Sun 9/27
2:40 pm-10:45 pm
1 stop10h 05m
$552
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seattle to Caribbean
Have a flexible travel schedule? Discover the best time to fly to Caribbean from Seattle with our price prediction graph.
SEA-STX
SEA-SJU
SEA-MBJ
SEA-AUA
SEA-NAS
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 Seattle to Caribbean
SEA-0CB
SEA-STX
SEA-SJU
SEA-MBJ
SEA-AUA
What is the cheapest month to book a flight from Seattle to Caribbean?
Currently, May is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $167). Flying from Seattle to Caribbean in January is currently the most expensive (average of $6,771). 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.
How far ahead should I book a flight from Seattle to Caribbean?
Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Caribbean. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
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 23, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Seattle to Caribbean have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Overall
7.9
Crew
8.6
Food
7.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Seattle to Caribbean. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Seattle 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 Seattle to Caribbean by cabin class
Find flights from Seattle to Caribbean, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Caribbean flights
Browse other Seattle and Caribbean flight options. Last updated on June 23, 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.
Seattle to Caribbean flights
Consider these flights traveling from Seattle to Caribbean.
Top 9 airlines flying from Seattle to Caribbean
Discover the top 9 airlines that operate flights from Seattle 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 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$199 | Average$707 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$600 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$282 | Average$559 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$349 | Average$682 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$368 | Average$740 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$474 | Average$680 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$727 | FlexibilityNo cancel fee | On-time75% |