$223+ Cheap flights from Seattle (SEA) to Caribbean Islands
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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jun 25 — Jul 21
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Caribbean Islands 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 Caribbean IslandsExplore the most affordable flight options available from Seattle to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 26, 2026.
Explore the most affordable flight options available from Seattle to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 26, 2026.
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 8/1711:16 pm
SEA
- SJU
2 stops12h 22m
American Airlines
Fri 8/211:38 pm
SJU
- SEA
2 stops13h 21m
American Airlines
Deal found 5/24![American Airlines logo]()
$466
This Southwest deal was found by Cheapflights users on 5/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:15 pm
SEA
- SJU
2 stops13h 45m
Southwest
Mon 8/246:30 am
SJU
- SEA
2 stops14h 05m
Southwest
Deal found 5/23![Southwest logo]()
$470
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 8/107:25 pm
SEA
- SJU
2 stops13h 55m
Southwest
Mon 8/176:30 am
SJU
- SEA
2 stops14h 05m
Southwest
Deal found 5/25![Southwest logo]()
$474
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 12/28:15 am
SEA
- SJU
1 stop17h 04m
American Airlines
Wed 12/93:47 pm
SJU
- SEA
1 stop11h 51m
American Airlines
Deal found 5/25![American Airlines logo]()
$475
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:31 pm
SEA
- SJU
1 stop18h 23m
American Airlines
Sat 9/510:33 am
SJU
- SEA
1 stop16h 47m
American Airlines
Deal found 5/25![American Airlines logo]()
$479
This Delta deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 10/2311:53 pm
SEA
- SJU
1 stop12h 08m
Delta
Mon 11/21:46 pm
SJU
- SEA
2 stops14h 25m
Delta
Deal found 5/24![Delta logo]()
$486
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:40 pm
SEA
- SJU
2 stops11h 30m
Southwest
Sat 9/510:25 am
SJU
- SEA
2 stops14h 05m
Southwest
Deal found 5/25![Southwest logo]()
$490
This United Airlines deal was found by Cheapflights users on 5/23. 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.
Fri 10/235:00 am
SEA
- SJU
1 stop9h 38m
United Airlines
Fri 10/3012:00 pm
SJU
- SEA
2 stops15h 14m
United Airlines
Deal found 5/23![United Airlines logo]()
$494
This Southwest deal was found by Cheapflights users on 5/21. 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 10/206:35 am
SEA
- SJU
2 stops13h 05m
Southwest
Sun 10/255:30 am
SJU
- SEA
2 stops12h 35m
Southwest
Deal found 5/21![Southwest logo]()
$505
This Southwest deal was found by Cheapflights users on 5/22. 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 10/216:35 am
SEA
- SJU
2 stops13h 05m
Southwest
Sun 10/255:30 am
SJU
- SEA
2 stops12h 35m
Southwest
Deal found 5/22![Southwest logo]()
$509
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 8/1011:56 pm
SEA
- SJU
1 stop20h 19m
American Airlines
Mon 8/177:24 pm
SJU
- SEA
1 stop19h 34m
American Airlines
Deal found 5/25![American Airlines logo]()
$510
This American Airlines deal was found by Cheapflights users on 5/22. 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 10/201:17 am
SEA
- SJU
2 stops11h 53m
American Airlines
Sun 10/252:25 pm
SJU
- SEA
1 stop13h 53m
American Airlines
Deal found 5/22![American Airlines logo]()
$515
Best flights from Seattle to Caribbean IslandsDiscover carefully curated flight deals from Seattle to Caribbean Islands that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 26, 2026.
Discover carefully curated flight deals from Seattle to Caribbean Islands that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 26, 2026.
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 8/107:25 pm
SEA
- SJU
2 stops13h 55m
Southwest
Mon 8/176:30 am
SJU
- SEA
2 stops14h 05m
Southwest
Deal found 5/25![Southwest logo]()
$474
This Delta deal was found by Cheapflights users on 5/23. 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.
Wed 8/1210:40 pm
SEA
- SJU
1 stop14h 53m
Delta
Mon 8/177:00 am
SJU
- SEA
2 stops14h 44m
Delta
Deal found 5/23![Delta logo]()
$486
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 11/910:45 pm
SEA
- SDQ
1 stop10h 56m
United Airlines
Sat 11/146:00 am
SDQ
- SEA
1 stop19h 05m
United Airlines
Deal found 5/25![United Airlines logo]()
$532
This American Airlines deal was found by Cheapflights users on 5/23. 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.
Sat 9/195:49 am
SEA
- SDQ
2 stops11h 06m
American Airlines
Sat 9/261:35 pm
SDQ
- SEA
2 stops12h 21m
American Airlines
Deal found 5/23![American Airlines logo]()
$537
This Air Canada deal was found by Cheapflights users on 5/22. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:20 pm
SEA
- GCM
2 stops38h 10m
Air Canada
Sat 10/312:25 pm
GCM
- SEA
2 stops32h 07m
Air Canada
Deal found 5/22![Air Canada logo]()
$575
This Mytrip deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 11/59:20 am
SEA
- BGI
3 stops25h 33m
WestJet
Mon 11/93:50 pm
BGI
- SEA
2 stops26h 30m
WestJet
Deal found 5/25![WestJet logo]()
$935
This FlightHub deal was found by Cheapflights users on 5/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/511:35 am
SEA
- STT
1 stop22h 08m
JetBlue
Fri 6/123:30 pm
STT
- SEA
2 stops23h 57m
JetBlue
Deal found 5/23![JetBlue logo]()
$985
This Delta deal was found by Cheapflights users on 5/22. 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 10/143:55 pm
SEA
- SDQ
1 stop18h 46m
Delta
Wed 10/217:49 pm
SDQ
- SEA
1 stop17h 46m
Delta
Deal found 5/22![Delta logo]()
$532
This United Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:13 pm
SEA
- SDQ
2 stops11h 57m
United Airlines
Sat 10/246:00 am
SDQ
- SEA
1 stop15h 21m
United Airlines
Deal found 5/24![United Airlines logo]()
$563
This Southwest deal was found by Cheapflights users on 5/22. 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.
Sun 8/1611:00 pm
SEA
- MBJ
2 stops12h 15m
Southwest
Thu 8/2712:15 pm
MBJ
- SEA
2 stops14h 25m
Southwest
Deal found 5/22![Southwest logo]()
$569
This American Airlines deal was found by Cheapflights users on 5/22. 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 10/145:05 am
SEA
- SDQ
2 stops11h 50m
American Airlines
Wed 10/218:00 am
SDQ
- SEA
2 stops14h 30m
American Airlines
Deal found 5/22![American Airlines logo]()
$576
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/911:05 pm
SEA
- SDQ
2 stops16h 05m
Delta
Sat 11/146:45 am
SDQ
- SEA
2 stops19h 20m
Delta
Deal found 5/25![Delta logo]()
$537
This Orbitz deal was found by Cheapflights users on 5/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:00 am
SEA
- BGI
1 stop28h 25m
Air Canada
Sun 10/253:10 pm
BGI
- SEA
1 stop32h 44m
Air Canada
Deal found 5/21![Air Canada logo]()
$610
This United Airlines deal was found by Cheapflights users on 5/22. 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 9/1810:58 pm
SEA
- SDQ
1 stop12h 12m
United Airlines
Sat 9/261:10 pm
SDQ
- SEA
1 stop11h 45m
United Airlines
Deal found 5/22![United Airlines logo]()
$563
This Southwest deal was found by Cheapflights users on 5/21. 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 11/102:00 pm
SEA
- PLS
2 stops20h 45m
Southwest
Tue 11/242:40 pm
PLS
- SEA
2 stops13h 55m
Southwest
Deal found 5/21![Southwest logo]()
$595
This American Airlines deal was found by Cheapflights users on 5/21. 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 11/1010:07 pm
SEA
- PLS
2 stops13h 16m
American Airlines
Tue 11/2411:25 am
PLS
- SEA
2 stops14h 40m
American Airlines
Deal found 5/21![American Airlines logo]()
$604
This Delta deal was found by Cheapflights users on 5/23. 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 7/107:50 pm
SEA
- SJU
2 stops12h 50m
Delta
Wed 7/152:42 pm
SJU
- SEA
2 stops12h 17m
Delta
Deal found 5/23![Delta logo]()
$564
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:45 pm
SEA
- SJU
1 stop10h 56m
United Airlines
Thu 10/297:10 am
SJU
- SEA
2 stops16h 00m
United Airlines
Deal found 5/25![United Airlines logo]()
$584
This Air Canada deal was found by Cheapflights users on 5/21. 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 11/28:40 am
SEA
- BGI
2 stops25h 55m
Air Canada
Fri 11/64:10 pm
BGI
- SEA
2 stops33h 47m
Air Canada
Deal found 5/21![Air Canada logo]()
$657
This American Airlines deal was found by Cheapflights users on 5/23. 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 11/1210:07 pm
SEA
- PLS
1 stop13h 28m
American Airlines
Thu 11/191:12 pm
PLS
- SEA
2 stops14h 46m
American Airlines
Deal found 5/23![American Airlines logo]()
$629
This Southwest deal was found by Cheapflights users on 5/23. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:35 pm
SEA
- NAS
2 stops14h 40m
Southwest
Mon 11/161:10 pm
NAS
- SEA
2 stops12h 05m
Southwest
Deal found 5/23![Southwest logo]()
$639
This United Airlines deal was found by Cheapflights users on 5/22. 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 9/2111:00 pm
SEA
- SJU
2 stops11h 53m
United Airlines
Wed 9/231:00 am
SJU
- SEA
2 stops13h 27m
United Airlines
Deal found 5/22![United Airlines logo]()
$584
This Delta deal was found by Cheapflights users on 5/23. 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.
Thu 8/2711:59 pm
SEA
- MBJ
1 stop9h 45m
Delta
Thu 9/101:25 pm
MBJ
- SEA
1 stop12h 38m
Delta
Deal found 5/23![Delta logo]()
$589
This FlightHub deal was found by Cheapflights users on 5/21. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:40 am
SEA
- BGI
2 stops25h 55m
Air Canada
Wed 11/114:10 pm
BGI
- SEA
2 stops33h 47m
Air Canada
Deal found 5/21![Air Canada logo]()
$694
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 7/1311:05 pm
SEA
- MBJ
2 stops13h 20m
Southwest
Tue 7/2112:35 pm
MBJ
- SEA
2 stops13h 00m
Southwest
Deal found 5/25![Southwest logo]()
$645
This American Airlines deal was found by Cheapflights users on 5/22. 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.
Mon 6/155:10 am
SEA
- SDQ
2 stops14h 45m
American Airlines
Mon 6/227:35 pm
SDQ
- SEA
1 stop19h 25m
American Airlines
Deal found 5/22![American Airlines logo]()
$646
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 8/1910:35 pm
SEA
- PLS
1 stop11h 05m
Delta
Fri 8/282:05 pm
PLS
- SEA
1 stop12h 52m
Delta
Deal found 5/25![Delta logo]()
$599
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Tue 11/1010:45 pm
SEA
- PLS
1 stop11h 32m
United Airlines
Tue 11/245:06 pm
PLS
- SEA
2 stops22h 06m
United Airlines
Deal found 5/21![United Airlines logo]()
$604
This Delta deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 8/1910:35 pm
SEA
- PLS
1 stop11h 05m
Delta
Wed 8/262:05 pm
PLS
- SEA
1 stop12h 52m
Delta
Deal found 5/25![Delta logo]()
$599
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/165:00 am
SEA
- SJU
2 stops11h 50m
Southwest
Thu 6/255:00 am
SJU
- SEA
2 stops11h 55m
Southwest
Deal found 5/25![Southwest logo]()
$666
Last-minute flights from Seattle to Caribbean IslandsDiscover last-minute flight deals from Seattle to Caribbean Islands. Data last updated May 26, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Caribbean Islands. Data last updated May 26, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 5/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:00 am
SEA
- PUJ
1 stop28h 25m
Air Canada
Tue 6/94:25 pm
PUJ
- SEA
1 stop31h 43m
Air Canada
Deal found 5/23![Air Canada logo]()
$636
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/85:15 am
SEA
- SJU
1 stop14h 30m
American Airlines
Mon 6/227:16 pm
SJU
- SEA
1 stop19h 44m
American Airlines
Deal found 5/25![American Airlines logo]()
$590
This American Airlines deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” 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 6/98:45 pm
SEA
- SJU
1 stop14h 21m
American Airlines
Mon 6/156:21 am
SJU
- SEA
1 stop18h 14m
American Airlines
Deal found 5/26![American Airlines logo]()
$629
This American Airlines deal was found by Cheapflights users on 5/22. 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 6/103:45 pm
SEA
- SJU
1 stop9h 40m
American Airlines
Wed 6/172:56 pm
SJU
- SEA
1 stop12h 12m
American Airlines
Deal found 5/22![American Airlines logo]()
$595
This American Airlines deal was found by Cheapflights users on 5/23. 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.
Wed 6/107:31 am
SEA
- SJU
1 stop13h 08m
American Airlines
Sun 6/147:16 pm
SJU
- SEA
1 stop19h 44m
American Airlines
Deal found 5/23![American Airlines logo]()
$634
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/101:00 pm
SEA
- SJU
1 stop17h 39m
American Airlines
Tue 7/712:59 am
SJU
- SEA
1 stop11h 28m
American Airlines
Deal found 5/25![American Airlines logo]()
$635
This FlightHub deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/1110:28 pm
SEA
- NAS
1 stop11h 27m
Multiple Airlines
Mon 6/156:30 pm
NAS
- SEA
1 stop29h 38m
Multiple Airlines
Deal found 5/25![Multiple Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Fri 6/1211:00 pm
SEA
- SJU
1 stop11h 45m
United Airlines
Tue 6/162:05 am
SJU
- SEA
1 stop11h 42m
United Airlines
Deal found 5/21![United Airlines logo]()
$639
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 6/155:10 am
SEA
- SJU
1 stop15h 29m
American Airlines
Wed 6/2410:29 am
SJU
- SEA
1 stop16h 39m
American Airlines
Deal found 5/24![American Airlines logo]()
$581
This Faresmojo deal was found by Cheapflights users on 5/23. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:00 am
SEA
- SJU
1 stop13h 29m
JetBlue
Tue 6/306:00 am
SJU
- SEA
1 stop10h 38m
JetBlue
Deal found 5/23![JetBlue logo]()
$606
This American Airlines deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 6/171:00 pm
SEA
- SJU
1 stop17h 39m
American Airlines
Tue 6/237:16 pm
SJU
- SEA
1 stop19h 44m
American Airlines
Deal found 5/24![American Airlines logo]()
$586
This American Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 6/306:00 am
SEA
- SJU
1 stop14h 59m
American Airlines
Mon 7/610:35 am
SJU
- SEA
1 stop16h 32m
American Airlines
Deal found 5/25![American Airlines logo]()
$621
One-way flights from Seattle to Caribbean IslandsSearch for one-way flight options from Seattle to Caribbean Islands. Find affordable one-way fares based on user searches. Data last updated May 26, 2026.
Search for one-way flight options from Seattle to Caribbean Islands. Find affordable one-way fares based on user searches. Data last updated May 26, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” 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 5/24![JetBlue logo]()
$223
This Southwest deal was found by Cheapflights users on 5/21. 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 8/107:25 pm
SEA
- SJU
2 stops12h 35m
Southwest
Deal found 5/21![Southwest logo]()
$227
This American Airlines deal was found by Cheapflights users on 5/21. 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.
Mon 8/2411:59 pm
SEA
- SJU
2 stops11h 52m
American Airlines
Deal found 5/21![American Airlines logo]()
$231
This American Airlines deal was found by Cheapflights users on 5/23. 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.
Wed 8/195:10 am
SEA
- SJU
1 stop15h 49m
American Airlines
Deal found 5/23![American Airlines logo]()
$232
This Southwest deal was found by Cheapflights users on 5/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:25 pm
SEA
- NAS
2 stops13h 50m
Southwest
Deal found 5/24![Southwest logo]()
$245
This United Airlines deal was found by Cheapflights users on 5/21. 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.
Mon 8/105:00 am
SEA
- SJU
1 stop9h 38m
United Airlines
Deal found 5/21![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 5/22. 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.
Mon 7/136:05 pm
SEA
- SJU
2 stops16h 27m
Delta
Deal found 5/22![Delta logo]()
$249
This Southwest deal was found by Cheapflights users on 5/22. 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 11/1812:55 pm
SEA
- NAS
2 stops20h 20m
Southwest
Deal found 5/22![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 9/111:00 pm
SEA
- MBJ
2 stops12h 10m
Southwest
Deal found 5/25![Southwest logo]()
$258
This United Airlines deal was found by Cheapflights users on 5/25. Clicking the “Pick Dates” 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 7/167:54 pm
SEA
- MBJ
2 stops17h 16m
United Airlines
Deal found 5/25![United Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 5/23. 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.
Sat 7/48:12 pm
SEA
- SJU
2 stops49h 16m
Frontier
Deal found 5/23![Frontier logo]()
$266
This Southwest deal was found by Cheapflights users on 5/22. 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 11/1112:55 pm
SEA
- NAS
2 stops20h 20m
Southwest
Deal found 5/22![Southwest logo]()
$277
Find flight deals from Seattle to Caribbean Islands
Keep the following information in mind while searching for Seattle to Caribbean Islands flight deals. Data was last updated May 26, 2026.
Round-trip from | $466 (American Airlines) |
|---|---|
One-way from | $223 (Cheapflightsfares) |
Popular in | December |
Cheapest in | October |
Average price | $543 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Caribbean Islands 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 May 26, 2026.
Use the filters below to find and compare flights from Seattle to Caribbean Islands that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 8/10
7:25 pm-12:20 pm
2 stops13h 55m
San Juan Luis Munoz Marin Intl
Mon 8/17
6:30 am-5:35 pm
2 stops14h 05m
$474
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 8/12
10:40 pm-4:33 pm
1 stop14h 53m
San Juan Luis Munoz Marin Intl
Mon 8/17
7:00 am-6:44 pm
2 stops14h 44m
$486
SeattleSanto Domingo
SEA - SDQ
SEASDQ
Seattle/Tacoma Intl
Mon 11/9
10:45 pm-1:41 pm
1 stop10h 56m
Santo Domingo Las Americas
Sat 11/14
6:00 am-9:05 pm
1 stop19h 05m
$532
SeattleSanto Domingo
SEA - SDQ
SEASDQ
Seattle/Tacoma Intl
Wed 10/14
3:55 pm-1:41 pm
1 stop18h 46m
Santo Domingo Las Americas
Wed 10/21
7:49 pm-10:35 am
1 stop17h 46m
$532
SeattleSanto Domingo
SEA - SDQ
SEASDQ
Seattle/Tacoma Intl
Sat 9/19
5:49 am-7:55 pm
2 stops11h 06m
Santo Domingo Las Americas
Sat 9/26
1:35 pm-10:56 pm
2 stops12h 21m
$537
SeattleSanto Domingo
SEA - SDQ
SEASDQ
Seattle/Tacoma Intl
Mon 11/9
11:05 pm-7:10 pm
2 stops16h 05m
Santo Domingo Las Americas
Sat 11/14
6:45 am-10:05 pm
2 stops19h 20m
$537
SeattleSanto Domingo
SEA - SDQ
SEASDQ
Seattle/Tacoma Intl
Fri 10/16
11:13 pm-2:10 pm
2 stops11h 57m
Santo Domingo Las Americas
Sat 10/24
6:00 am-6:21 pm
1 stop15h 21m
$563
SeattleSanto Domingo
SEA - SDQ
SEASDQ
Seattle/Tacoma Intl
Fri 9/18
10:58 pm-2:10 pm
1 stop12h 12m
Santo Domingo Las Americas
Sat 9/26
1:10 pm-9:55 pm
1 stop11h 45m
$563
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 7/10
7:50 pm-11:40 am
2 stops12h 50m
San Juan Luis Munoz Marin Intl
Wed 7/15
2:42 pm-11:59 pm
2 stops12h 17m
$564
SeattleMontego Bay
SEA - MBJ
SEAMBJ
Seattle/Tacoma Intl
Sun 8/16
11:00 pm-1:15 pm
2 stops12h 15m
Montego Bay Sangster Intl
Thu 8/27
12:15 pm-12:40 am
2 stops14h 25m
$569
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Seattle to Caribbean Islands
Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands from Seattle with our price prediction graph.
SEA-SJU
SEA-NAS
SEA-BGI
SEA-GCM
SEA-MBJ
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 Islands
SEA-zzEPX
SEA-SJU
SEA-NAS
SEA-BGI
SEA-GCM
What is the cheapest month to book a flight from Seattle to Caribbean Islands?
Currently, May is the cheapest month in which you can book a flight from Seattle to Caribbean Islands (average of $167). Flying from Seattle to Caribbean Islands in February is currently the most expensive (average of $306). 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 Islands?
Booking 6 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Caribbean Islands. 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 Islands
Get insights into the airlines that provide service to Caribbean Islands. 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 Islands. Reviews last updated May 26, 2026.
Peruse reviews from past customers who have flown with Delta,United Airlines, andJetBlue from Seattle to Caribbean Islands to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Boarding
8.1
Entertainment
7.8
Food
7.2
Crew
8.5
Overall
7.9
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Seattle to Caribbean Islands. 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 Islands
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Caribbean Islands by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Caribbean Islands by cabin class
Find flights from Seattle to Caribbean Islands, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Caribbean Islands flights
Browse other Seattle and Caribbean Islands flight options. Last updated on May 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Seattle to Caribbean Islands flights
Consider these flights traveling from Seattle to Caribbean Islands.
Top 9 airlines flying from Seattle to Caribbean Islands
Discover the top 9 airlines that operate flights from Seattle to Caribbean Islands. 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 May 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$199 | Average$641 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$602 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$282 | Average$544 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$349 | Average$681 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$366 | Average$713 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$494 | Average$673 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$727 | FlexibilityNo cancel fee | On-time75% |