$159+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
May 22 — May 291
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 April 22, 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 April 22, 2026.
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/26:19 pm
SEA
- STT
2 stops14h 16m
American Airlines
Wed 5/611:27 am
STT
- SEA
1 stop12h 56m
American Airlines
Deal found 4/17![American Airlines logo]()
$440
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/66:19 pm
SEA
- STT
2 stops14h 16m
American Airlines
Wed 5/1312:25 pm
STT
- SEA
2 stops15h 19m
American Airlines
Deal found 4/19![American Airlines logo]()
$445
This Southwest deal was found by Cheapflights users on 4/21. 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.
Tue 9/225:20 am
SEA
- SJU
2 stops12h 45m
Southwest
Mon 9/285:00 am
SJU
- SEA
2 stops13h 00m
Southwest
Deal found 4/21![Southwest logo]()
$454
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/27:00 am
SEA
- SJU
1 stop10h 34m
United Airlines
Thu 5/77:00 am
SJU
- SEA
2 stops14h 00m
United Airlines
Deal found 4/17![United Airlines logo]()
$456
This American Airlines deal was found by Cheapflights users on 4/22. 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 5/510:47 pm
SEA
- STT
1 stop10h 48m
American Airlines
Tue 5/1212:25 pm
STT
- SEA
2 stops15h 11m
American Airlines
Deal found 4/22![American Airlines logo]()
$465
This Southwest deal was found by Cheapflights users on 4/20. 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 8/2010:30 pm
SEA
- SJU
1 stop13h 00m
Southwest
Wed 8/261:45 pm
SJU
- SEA
2 stops12h 20m
Southwest
Deal found 4/20![Southwest logo]()
$474
This Delta deal was found by Cheapflights users on 4/18. 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.
Wed 5/137:30 am
SEA
- SJU
1 stop11h 47m
Delta
Tue 6/22:35 pm
SJU
- SEA
2 stops12h 35m
Delta
Deal found 4/18![Delta logo]()
$475
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/911:53 pm
SEA
- SJU
1 stop11h 51m
United Airlines
Wed 5/133:56 pm
SJU
- SEA
1 stop11h 03m
United Airlines
Deal found 4/21![United Airlines logo]()
$485
This Frontier deal was found by Cheapflights users on 4/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:19 pm
SEA
- PUJ
2 stops16h 38m
Frontier
Wed 6/1011:42 am
PUJ
- SEA
2 stops25h 53m
Frontier
Deal found 4/20![Frontier logo]()
$490
This Delta deal was found by Cheapflights users on 4/18. 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.
Mon 6/16:00 am
SEA
- SJU
2 stops14h 35m
Delta
Thu 6/111:10 pm
SJU
- SEA
2 stops13h 49m
Delta
Deal found 4/18![Delta logo]()
$494
This American Airlines deal was found by Cheapflights users on 4/21. 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 6/38:45 pm
SEA
- SJU
1 stop18h 40m
American Airlines
Tue 6/97:00 am
SJU
- SEA
1 stop18h 59m
American Airlines
Deal found 4/21![American Airlines logo]()
$499
This Gotogate deal was found by Cheapflights users on 4/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/58:00 am
SEA
- AUA
1 stop27h 15m
Air Canada
Sat 6/133:05 pm
AUA
- SEA
1 stop33h 03m
Air Canada
Deal found 4/22![Air Canada logo]()
$503
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 April 22, 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 April 22, 2026.
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/26:19 pm
SEA
- STT
2 stops14h 16m
American Airlines
Wed 5/611:27 am
STT
- SEA
1 stop12h 56m
American Airlines
Deal found 4/17![American Airlines logo]()
$440
This Southwest deal was found by Cheapflights users on 4/19. 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.
Wed 9/2310:30 pm
SEA
- SJU
1 stop13h 00m
Southwest
Fri 10/212:00 pm
SJU
- SEA
2 stops15h 20m
Southwest
Deal found 4/19![Southwest logo]()
$454
This Delta deal was found by Cheapflights users on 4/18. 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.
Fri 5/2911:05 pm
SEA
- SJU
1 stop11h 15m
Delta
Tue 6/22:35 pm
SJU
- SEA
2 stops12h 35m
Delta
Deal found 4/18![Delta logo]()
$494
This FlightHub deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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.
Thu 6/118:00 am
SEA
- NAS
1 stop30h 30m
Air Canada
Mon 6/156:30 pm
NAS
- SEA
1 stop29h 38m
Air Canada
Deal found 4/17![Air Canada logo]()
$507
This Cheapflightsfares deal was found by Cheapflights users on 4/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:52 pm
SEA
- KIN
1 stop16h 58m
JetBlue
Tue 6/29:02 am
KIN
- SEA
1 stop13h 54m
JetBlue
Deal found 4/19![JetBlue logo]()
$553
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 4/2711:59 pm
SEA
- STT
1 stop12h 32m
United Airlines
Fri 5/11:22 pm
STT
- SEA
2 stops12h 37m
United Airlines
Deal found 4/17![United Airlines logo]()
$555
This Mytrip deal was found by Cheapflights users on 4/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:35 pm
SEA
- KIN
2 stops19h 35m
Multiple Airlines
Tue 5/123:05 pm
KIN
- SEA
1 stop32h 03m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$683
This Delta deal was found by Cheapflights users on 4/19. 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.
Wed 5/277:15 am
SEA
- STI
1 stop14h 44m
Delta
Wed 6/36:00 am
STI
- SEA
1 stop17h 10m
Delta
Deal found 4/19![Delta logo]()
$512
This American Airlines deal was found by Cheapflights users on 4/18. 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 6/28:45 pm
SEA
- STI
1 stop14h 53m
American Airlines
Tue 6/99:06 am
STI
- SEA
2 stops16h 53m
American Airlines
Deal found 4/18![American Airlines logo]()
$517
This Copa Airlines deal was found by Cheapflights users on 4/20. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/105:04 pm
SEA
- CUR
2 stops18h 32m
Copa Airlines
Wed 7/157:31 pm
CUR
- SEA
2 stops29h 28m
Copa Airlines
Deal found 4/20![Copa Airlines logo]()
$1,055
This Delta deal was found by Cheapflights users on 4/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:35 pm
SEA
- STI
1 stop17h 53m
Delta
Wed 6/106:00 am
STI
- SEA
1 stop17h 19m
Delta
Deal found 4/22![Delta logo]()
$512
This United Airlines deal was found by Cheapflights users on 4/22. 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 6/110:40 pm
SEA
- MBJ
2 stops14h 30m
United Airlines
Mon 6/84:12 pm
MBJ
- SEA
2 stops17h 48m
United Airlines
Deal found 4/22![United Airlines logo]()
$569
This American Airlines deal was found by Cheapflights users on 4/20. 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 6/48:45 pm
SEA
- STI
1 stop21h 28m
American Airlines
Thu 6/117:03 am
STI
- SEA
2 stops18h 29m
American Airlines
Deal found 4/20![American Airlines logo]()
$531
This Southwest deal was found by Cheapflights users on 4/22. 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 5/186:15 pm
SEA
- SJU
2 stops13h 20m
Southwest
Fri 5/292:00 pm
SJU
- SEA
2 stops13h 05m
Southwest
Deal found 4/22![Southwest logo]()
$616
This Delta deal was found by Cheapflights users on 4/19. 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.
Tue 6/27:15 am
SEA
- STI
1 stop14h 44m
Delta
Wed 6/106:00 am
STI
- SEA
1 stop11h 49m
Delta
Deal found 4/19![Delta logo]()
$512
This Mytrip deal was found by Cheapflights users on 4/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/68:00 am
SEA
- KIN
1 stop24h 25m
Air Canada
Mon 5/113:05 pm
KIN
- SEA
1 stop32h 03m
Air Canada
Deal found 4/19![Air Canada logo]()
$640
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/155:05 am
SEA
- PUJ
1 stop9h 30m
United Airlines
Fri 5/224:00 pm
PUJ
- SEA
2 stops19h 00m
United Airlines
Deal found 4/17![United Airlines logo]()
$610
This Delta deal was found by Cheapflights users on 4/18. 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.
Tue 6/211:05 pm
SEA
- STI
2 stops17h 23m
Delta
Tue 6/96:00 am
STI
- SEA
2 stops19h 34m
Delta
Deal found 4/18![Delta logo]()
$517
This Southwest deal was found by Cheapflights users on 4/21. 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 5/2011:45 pm
SEA
- NAS
2 stops15h 45m
Southwest
Wed 5/278:45 am
NAS
- SEA
2 stops11h 10m
Southwest
Deal found 4/21![Southwest logo]()
$638
This American Airlines deal was found by Cheapflights users on 4/18. 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.
Thu 5/288:45 pm
SEA
- KIN
1 stop17h 23m
American Airlines
Tue 6/28:00 am
KIN
- SEA
1 stop18h 08m
American Airlines
Deal found 4/18![American Airlines logo]()
$584
This FlightHub deal was found by Cheapflights users on 4/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:00 am
SEA
- KIN
1 stop27h 55m
Air Canada
Tue 6/93:05 pm
KIN
- SEA
1 stop32h 03m
Air Canada
Deal found 4/18![Air Canada logo]()
$662
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:00 pm
SEA
- AUA
1 stop19h 30m
United Airlines
Thu 6/43:10 pm
AUA
- SEA
1 stop10h 32m
United Airlines
Deal found 4/21![United Airlines logo]()
$633
This FlightHub deal was found by Cheapflights users on 4/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:00 am
SEA
- MBJ
2 stops26h 45m
Multiple Airlines
Sat 6/2710:50 am
MBJ
- SEA
1 stop12h 18m
Multiple Airlines
Deal found 4/18![Multiple Airlines logo]()
$770
This Southwest deal was found by Cheapflights users on 4/21. 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.
Mon 5/2511:55 pm
SEA
- NAS
2 stops15h 35m
Southwest
Fri 5/292:10 pm
NAS
- SEA
2 stops12h 55m
Southwest
Deal found 4/21![Southwest logo]()
$638
This Air Canada deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 6/28:00 am
SEA
- MBJ
1 stop25h 20m
Air Canada
Fri 6/512:30 pm
MBJ
- SEA
2 stops36h 13m
Air Canada
Deal found 4/17![Air Canada logo]()
$676
This Delta deal was found by Cheapflights users on 4/20. 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.
Thu 9/36:00 pm
SEA
- SJU
2 stops16h 30m
Delta
Sat 9/121:32 pm
SJU
- SEA
1 stop11h 44m
Delta
Deal found 4/20![Delta logo]()
$562
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 6/125:10 am
SEA
- MBJ
1 stop9h 07m
American Airlines
Sat 7/115:17 pm
MBJ
- SEA
2 stops18h 12m
American Airlines
Deal found 4/17![American Airlines logo]()
$619
This United Airlines deal was found by Cheapflights users on 4/19. 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.
Wed 5/68:10 am
SEA
- SJU
1 stop10h 14m
United Airlines
Sat 5/91:00 am
SJU
- SEA
2 stops17h 51m
United Airlines
Deal found 4/19![United Airlines logo]()
$633
This Southwest deal was found by Cheapflights users on 4/19. 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.
Fri 7/310:45 pm
SEA
- NAS
2 stops11h 40m
Southwest
Sat 7/112:20 pm
NAS
- SEA
2 stops12h 45m
Southwest
Deal found 4/19![Southwest logo]()
$638
This Delta deal was found by Cheapflights users on 4/21. 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.
Mon 6/16:00 am
SEA
- SJU
2 stops14h 35m
Delta
Thu 6/1112:54 pm
SJU
- SEA
2 stops14h 05m
Delta
Deal found 4/21![Delta logo]()
$562
Last-minute flights from Seattle to CaribbeanDiscover last-minute flight deals from Seattle to Caribbean. Data last updated April 22, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Caribbean. Data last updated April 22, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/26:19 pm
SEA
- STT
2 stops14h 16m
American Airlines
Wed 5/611:27 am
STT
- SEA
1 stop12h 56m
American Airlines
Deal found 4/17![American Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/27:00 am
SEA
- SJU
1 stop10h 34m
United Airlines
Thu 5/77:00 am
SJU
- SEA
2 stops14h 00m
United Airlines
Deal found 4/17![United Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 4/18. 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.
Mon 5/45:05 am
SEA
- SJU
1 stop9h 33m
United Airlines
Tue 5/127:20 am
SJU
- SEA
2 stops14h 40m
United Airlines
Deal found 4/18![United Airlines logo]()
$526
This American Airlines deal was found by Cheapflights users on 4/22. 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 5/510:47 pm
SEA
- STT
1 stop10h 48m
American Airlines
Tue 5/1212:25 pm
STT
- SEA
2 stops15h 11m
American Airlines
Deal found 4/22![American Airlines logo]()
$465
This American Airlines deal was found by Cheapflights users on 4/19. 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 5/66:19 pm
SEA
- STT
2 stops14h 16m
American Airlines
Wed 5/1312:25 pm
STT
- SEA
2 stops15h 19m
American Airlines
Deal found 4/19![American Airlines logo]()
$445
This United Airlines deal was found by Cheapflights users on 4/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/911:53 pm
SEA
- SJU
1 stop11h 51m
United Airlines
Wed 5/133:56 pm
SJU
- SEA
1 stop11h 03m
United Airlines
Deal found 4/21![United Airlines logo]()
$485
This Delta deal was found by Cheapflights users on 4/18. 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.
Wed 5/137:30 am
SEA
- SJU
1 stop11h 47m
Delta
Tue 6/22:35 pm
SJU
- SEA
2 stops12h 35m
Delta
Deal found 4/18![Delta logo]()
$475
This American Airlines deal was found by Cheapflights users on 4/20. 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 5/186:19 pm
SEA
- SJU
2 stops11h 54m
American Airlines
Fri 5/296:20 am
SJU
- SEA
1 stop18h 15m
American Airlines
Deal found 4/20![American Airlines logo]()
$494
This Priceline deal was found by Cheapflights users on 4/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:55 pm
SEA
- NAS
2 stops23h 35m
Air Canada
Tue 6/26:30 pm
NAS
- SEA
2 stops22h 53m
Air Canada
Deal found 4/18![Air Canada logo]()
$507
This American Airlines deal was found by Cheapflights users on 4/17. Clicking the “Pick Dates” 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 5/275:15 am
SEA
- SJU
1 stop14h 30m
American Airlines
Sat 6/67:00 am
SJU
- SEA
1 stop18h 59m
American Airlines
Deal found 4/17![American Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 4/19. 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.
Wed 5/277:15 am
SEA
- STI
1 stop14h 44m
Delta
Wed 6/36:00 am
STI
- SEA
1 stop17h 10m
Delta
Deal found 4/19![Delta logo]()
$512
This American Airlines deal was found by Cheapflights users on 4/21. 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 5/279:35 pm
SEA
- STT
1 stop10h 28m
American Airlines
Tue 6/211:52 am
STT
- SEA
2 stops15h 24m
American Airlines
Deal found 4/21![American Airlines logo]()
$517
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 April 22, 2026.
Search for one-way flight options from Seattle to Caribbean. Find affordable one-way fares based on user searches. Data last updated April 22, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Wed 5/277:50 pm
SEA
- SJU
2 stops42h 24m
Frontier
Deal found 4/21![Frontier logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 5/293:19 pm
SEA
- SJU
2 stops33h 42m
Frontier
Deal found 4/21![Frontier logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:50 pm
SEA
- SJU
2 stops42h 36m
Frontier
Deal found 4/20![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Thu 6/117:41 pm
SEA
- SJU
2 stops25h 56m
Frontier
Deal found 4/21![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 4/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/177:50 pm
SEA
- SJU
2 stops25h 07m
Frontier
Deal found 4/20![Frontier logo]()
$194
This Delta deal was found by Cheapflights users on 4/19. 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.
Mon 5/185:00 pm
SEA
- SXM
1 stop17h 51m
Delta
Deal found 4/19![Delta logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 4/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/227:50 pm
SEA
- SJU
2 stops53h 11m
Frontier
Deal found 4/18![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 6/57:50 pm
SEA
- SJU
2 stops42h 22m
Frontier
Deal found 4/21![Frontier logo]()
$202
This Air Canada deal was found by Cheapflights users on 4/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/153:00 pm
SEA
- NAS
2 stops23h 30m
Air Canada
Deal found 4/21![Air Canada logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Sun 5/317:50 pm
SEA
- SJU
2 stops31h 34m
Frontier
Deal found 4/21![Frontier logo]()
$204
This Air Canada deal was found by Cheapflights users on 4/21. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:00 am
SEA
- NAS
2 stops25h 40m
Air Canada
Deal found 4/21![Air Canada logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 4/21. 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.
Wed 5/2711:21 am
SEA
- SJU
3 stops28h 38m
Multiple Airlines
Deal found 4/21![Multiple Airlines logo]()
$209
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 April 22, 2026.
Round-trip from | $440 (American Airlines) |
|---|---|
One-way from | $159 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $643 |
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 April 22, 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
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Sat 5/2
6:19 pm-11:35 am
2 stops14h 16m
Saint Thomas Island Cyril E King
Wed 5/6
11:27 am-9:23 pm
1 stop12h 56m
$440
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 9/23
10:30 pm-2:30 pm
1 stop13h 00m
San Juan Luis Munoz Marin Intl
Fri 10/2
12:00 pm-12:20 am
2 stops15h 20m
$454
Quickest round-trip
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 5/29
11:05 pm-1:20 pm
1 stop11h 15m
San Juan Luis Munoz Marin Intl
Tue 6/2
2:35 pm-12:10 am
2 stops12h 35m
$494
SeattleNassau
SEA - NAS
SEANAS
Seattle/Tacoma Intl
Thu 6/11
8:00 am-5:30 pm
1 stop30h 30m
Nassau Intl
Mon 6/15
6:30 pm-9:08 pm
1 stop29h 38m
$507
SeattleSantiago de los Caballeros
SEA - STI
SEASTI
Seattle/Tacoma Intl
Wed 5/27
7:15 am-12:59 am
1 stop14h 44m
Santiago de los Caballeros
Wed 6/3
6:00 am-8:10 pm
1 stop17h 10m
$512
SeattleSantiago de los Caballeros
SEA - STI
SEASTI
Seattle/Tacoma Intl
Wed 6/3
10:35 pm-7:28 pm
1 stop17h 53m
Santiago de los Caballeros
Wed 6/10
6:00 am-8:19 pm
1 stop17h 19m
$512
SeattleSantiago de los Caballeros
SEA - STI
SEASTI
Seattle/Tacoma Intl
Tue 6/2
7:15 am-12:59 am
1 stop14h 44m
Santiago de los Caballeros
Wed 6/10
6:00 am-2:49 pm
1 stop11h 49m
$512
SeattleSantiago de los Caballeros
SEA - STI
SEASTI
Seattle/Tacoma Intl
Tue 6/2
8:45 pm-2:38 pm
1 stop14h 53m
Santiago de los Caballeros
Tue 6/9
9:06 am-10:59 pm
2 stops16h 53m
$517
SeattleSantiago de los Caballeros
SEA - STI
SEASTI
Seattle/Tacoma Intl
Tue 6/2
11:05 pm-7:28 pm
2 stops17h 23m
Santiago de los Caballeros
Tue 6/9
6:00 am-10:34 pm
2 stops19h 34m
$517
SeattleSantiago de los Caballeros
SEA - STI
SEASTI
Seattle/Tacoma Intl
Thu 6/4
8:45 pm-9:13 pm
1 stop21h 28m
Santiago de los Caballeros
Thu 6/11
7:03 am-10:32 pm
2 stops18h 29m
$531
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-STT
SEA-SJU
SEA-NAS
SEA-STI
SEA-KIN
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-STT
SEA-SJU
SEA-NAS
SEA-STI
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 April is currently the most expensive (average of $1,190). 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.
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 April 22, 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.
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Boarding
8.1
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 April 22, 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 April 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$214 | Average$651 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$603 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$327 | Average$517 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$349 | Average$762 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$363 | Average$686 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$521 | Average$681 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$727 | FlexibilityNo cancel fee | On-time75% |