$138+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Mai 17 — Mai 241
Round-trip
1 adult, Economy
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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 17, 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 17, 2026.
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Di 5/511:33 pm
SEA
- STT
2 stops12h 16m
American Airlines
Di 5/125:05 pm
STT
- SEA
2 stops20h 36m
American Airlines
Deal found 4/13![American Airlines logo]()
$440
This American Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Mi 5/61:33 pm
SEA
- STT
1 stop18h 14m
American Airlines
Mi 5/131:15 pm
STT
- SEA
2 stops14h 21m
American Airlines
Deal found 4/16![American Airlines logo]()
$445
This KAYAK deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/2711:52 pm
SEA
- SJU
1 stop12h 38m
JetBlue
Sa 6/69:52 am
SJU
- SEA
1 stop14h 04m
JetBlue
Deal found 4/16![JetBlue logo]()
$453
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Mi 5/67:05 pm
SEA
- STT
2 stops15h 03m
United Airlines
Mi 5/131:22 pm
STT
- SEA
2 stops12h 37m
United Airlines
Deal found 4/16![United Airlines logo]()
$453
This Southwest deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Mo 8/246:15 pm
SEA
- SJU
2 stops13h 45m
Southwest
So 8/306:35 am
SJU
- SEA
2 stops13h 05m
Southwest
Deal found 4/15![Southwest logo]()
$454
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Sa 5/25:55 pm
SEA
- SJU
2 stops15h 17m
Delta
Sa 5/97:05 am
SJU
- SEA
1 stop16h 05m
Delta
Deal found 4/16![Delta logo]()
$456
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
So 4/2611:59 pm
SEA
- STT
1 stop12h 32m
United Airlines
Fr 5/11:22 pm
STT
- SEA
1 stop12h 30m
United Airlines
Deal found 4/13![United Airlines logo]()
$465
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Sa 5/27:08 am
SEA
- SJU
2 stops13h 42m
United Airlines
Fr 5/83:56 pm
SJU
- SEA
1 stop11h 03m
United Airlines
Deal found 4/15![United Airlines logo]()
$473
This Southwest deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Di 8/187:10 am
SEA
- SJU
2 stops11h 50m
Southwest
So 8/235:30 am
SJU
- SEA
1 stop12h 10m
Southwest
Deal found 4/14![Southwest logo]()
$474
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Fr 10/237:10 pm
SEA
- STT
2 stops14h 51m
United Airlines
So 11/13:35 pm
STT
- SEA
1 stop11h 03m
United Airlines
Deal found 4/12![United Airlines logo]()
$474
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Sa 5/167:15 am
SEA
- SJU
1 stop13h 20m
Delta
Sa 5/237:05 am
SJU
- SEA
1 stop16h 05m
Delta
Deal found 4/12![Delta logo]()
$475
This American Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Mi 4/297:09 am
SEA
- SJU
1 stop12h 53m
American Airlines
Do 5/147:25 am
SJU
- SEA
1 stop16h 39m
American Airlines
Deal found 4/14![American Airlines logo]()
$480
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 17, 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 17, 2026.
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Mi 4/2911:10 am
SEA
- SJU
1 stop9h 03m
Delta
Di 5/57:15 am
SJU
- SEA
1 stop15h 44m
Delta
Deal found 4/15![Delta logo]()
$456
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Mi 5/277:00 am
SEA
- SJU
1 stop10h 34m
United Airlines
Mi 6/31:25 pm
SJU
- SEA
1 stop13h 19m
United Airlines
Deal found 4/12![United Airlines logo]()
$494
This Southwest deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Mi 8/2610:30 pm
SEA
- SJU
2 stops12h 15m
Southwest
So 8/306:35 am
SJU
- SEA
2 stops13h 25m
Southwest
Deal found 4/13![Southwest logo]()
$510
This JetBlue deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 6/211:52 pm
SEA
- MBJ
1 stop11h 11m
JetBlue
Fr 6/510:43 am
MBJ
- SEA
1 stop12h 13m
JetBlue
Deal found 4/16![JetBlue logo]()
$573
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.
So 9/135:31 pm
SEA
- SXM
2 stops16h 44m
American Airlines
Sa 9/192:40 pm
SXM
- SEA
2 stops21h 40m
American Airlines
Deal found 4/17![American Airlines logo]()
$602
This Gotogate deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Mi 5/208:00 am
SEA
- BGI
1 stop28h 20m
Air Canada
Mo 5/254:20 pm
BGI
- SEA
1 stop31h 48m
Air Canada
Deal found 4/16![Air Canada logo]()
$644
This Mytrip deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Mi 6/1010:45 am
SEA
- NAS
2 stops22h 55m
Multiple Airlines
So 6/212:35 pm
NAS
- SEA
3 stops31h 10m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$672
This WestJet deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 5/107:35 pm
SEA
- SXM
2 stops15h 45m
WestJet
Do 5/143:20 pm
SXM
- SEA
2 stops45h 20m
WestJet
Deal found 4/16![WestJet logo]()
$759
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Mi 4/296:00 am
SEA
- SJU
1 stop11h 24m
Delta
Mi 5/62:03 pm
SJU
- SEA
2 stops12h 56m
Delta
Deal found 4/14![Delta logo]()
$456
This Southwest deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Do 9/310:30 pm
SEA
- SJU
2 stops12h 15m
Southwest
Di 9/81:45 pm
SJU
- SEA
2 stops12h 20m
Southwest
Deal found 4/16![Southwest logo]()
$510
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Mo 5/411:59 pm
SEA
- STT
1 stop12h 44m
United Airlines
Do 5/71:22 pm
STT
- SEA
1 stop12h 30m
United Airlines
Deal found 4/12![United Airlines logo]()
$530
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Do 7/97:15 am
SEA
- SJU
1 stop13h 38m
Delta
So 7/192:05 pm
SJU
- SEA
2 stops12h 53m
Delta
Deal found 4/12![Delta logo]()
$494
This Southwest deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Di 10/134:25 pm
SEA
- SJU
2 stops13h 40m
Southwest
Mi 10/215:35 am
SJU
- SEA
2 stops13h 10m
Southwest
Deal found 4/13![Southwest logo]()
$530
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Mo 6/110:35 pm
SEA
- SJU
1 stop14h 54m
Delta
Do 6/111:10 pm
SJU
- SEA
2 stops13h 49m
Delta
Deal found 4/16![Delta logo]()
$494
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Fr 5/110:41 pm
SEA
- SJU
1 stop10h 53m
United Airlines
Mo 5/41:00 am
SJU
- SEA
2 stops17h 51m
United Airlines
Deal found 4/15![United Airlines logo]()
$546
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Do 8/2011:11 pm
SEA
- SXM
2 stops13h 28m
American Airlines
So 8/232:42 pm
SXM
- SEA
2 stops21h 37m
American Airlines
Deal found 4/13![American Airlines logo]()
$607
This Southwest deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Fr 5/811:55 pm
SEA
- SJU
1 stop10h 25m
Southwest
Do 5/142:00 pm
SJU
- SEA
2 stops13h 05m
Southwest
Deal found 4/14![Southwest logo]()
$530
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
So 5/37:05 pm
SEA
- SJU
2 stops14h 29m
United Airlines
Fr 5/81:00 am
SJU
- SEA
2 stops17h 51m
United Airlines
Deal found 4/13![United Airlines logo]()
$546
This Justfly.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 5/178:00 am
SEA
- BGI
1 stop28h 20m
Air Canada
Di 5/264:20 pm
BGI
- SEA
1 stop31h 48m
Air Canada
Deal found 4/16![Air Canada logo]()
$662
This FlightHub deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Fr 5/1511:39 pm
SEA
- SXM
1 stop12h 40m
JetBlue
Fr 5/223:14 pm
SXM
- SEA
1 stop32h 42m
JetBlue
Deal found 4/16![JetBlue logo]()
$701
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
So 5/104:15 pm
SEA
- SDQ
1 stop17h 13m
Delta
Fr 5/156:05 am
SDQ
- SEA
1 stop19h 40m
Delta
Deal found 4/14![Delta logo]()
$532
This Southwest deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Mi 9/911:05 pm
SEA
- MBJ
2 stops12h 10m
Southwest
Mi 9/2311:50 am
MBJ
- SEA
2 stops13h 15m
Southwest
Deal found 4/12![Southwest logo]()
$539
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Fr 5/17:36 pm
SEA
- STT
2 stops13h 44m
United Airlines
Di 5/52:10 pm
STT
- SEA
1 stop12h 49m
United Airlines
Deal found 4/15![United Airlines logo]()
$547
This Expedia deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Sa 10/107:20 pm
SEA
- BGI
2 stops41h 05m
Multiple Airlines
Sa 10/172:45 pm
BGI
- SEA
2 stops57h 19m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$737
This American Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Sa 7/43:06 pm
SEA
- NAS
1 stop17h 23m
American Airlines
Sa 7/116:05 pm
NAS
- SEA
1 stop9h 52m
American Airlines
Deal found 4/12![American Airlines logo]()
$672
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Mo 6/111:05 pm
SEA
- SDQ
2 stops15h 56m
Delta
Mo 6/157:35 pm
SDQ
- SEA
2 stops20h 17m
Delta
Deal found 4/15![Delta logo]()
$537
This Southwest deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Mi 5/1311:45 pm
SEA
- NAS
2 stops15h 45m
Southwest
Mi 5/208:45 am
NAS
- SEA
2 stops11h 10m
Southwest
Deal found 4/14![Southwest logo]()
$552
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Mi 5/136:58 pm
SEA
- STT
2 stops17h 45m
United Airlines
Mo 5/181:22 pm
STT
- SEA
1 stop12h 30m
United Airlines
Deal found 4/14![United Airlines logo]()
$555
This American Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Di 5/1211:33 pm
SEA
- CUR
2 stops13h 15m
American Airlines
Di 5/194:49 pm
CUR
- SEA
2 stops20h 52m
American Airlines
Deal found 4/12![American Airlines logo]()
$673
This Justfly.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 6/2210:28 pm
SEA
- BGI
1 stop14h 27m
JetBlue
So 7/55:05 pm
BGI
- SEA
1 stop30h 59m
JetBlue
Deal found 4/14![JetBlue logo]()
$749
Last-minute flights from Seattle to CaribbeanDiscover last-minute flight deals from Seattle to Caribbean. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Caribbean. Data last updated April 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
So 4/2611:59 pm
SEA
- STT
1 stop12h 32m
United Airlines
Fr 5/11:22 pm
STT
- SEA
1 stop12h 30m
United Airlines
Deal found 4/13![United Airlines logo]()
$465
This American Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Mi 4/297:09 am
SEA
- SJU
1 stop12h 53m
American Airlines
Do 5/147:25 am
SJU
- SEA
1 stop16h 39m
American Airlines
Deal found 4/14![American Airlines logo]()
$480
This Delta deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Sa 5/25:55 pm
SEA
- SJU
2 stops15h 17m
Delta
Sa 5/97:05 am
SJU
- SEA
1 stop16h 05m
Delta
Deal found 4/16![Delta logo]()
$456
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Sa 5/27:08 am
SEA
- SJU
2 stops13h 42m
United Airlines
Fr 5/83:56 pm
SJU
- SEA
1 stop11h 03m
United Airlines
Deal found 4/15![United Airlines logo]()
$473
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Sa 5/25:05 am
SEA
- SJU
1 stop9h 33m
United Airlines
Sa 5/97:20 am
SJU
- SEA
2 stops14h 40m
United Airlines
Deal found 4/16![United Airlines logo]()
$474
This Justfly.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 5/47:12 pm
SEA
- MBJ
2 stops14h 59m
Frontier
Do 5/71:16 pm
MBJ
- SEA
2 stops31h 19m
Frontier
Deal found 4/16![Frontier logo]()
$481
This American Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Di 5/510:16 pm
SEA
- STT
1 stop11h 59m
American Airlines
Di 5/1212:47 pm
STT
- SEA
1 stop11h 36m
American Airlines
Deal found 4/13![American Airlines logo]()
$440
This American Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Mi 5/66:19 pm
SEA
- STT
2 stops14h 16m
American Airlines
Mi 5/1312:25 pm
STT
- SEA
2 stops15h 19m
American Airlines
Deal found 4/16![American Airlines logo]()
$445
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Mi 5/67:05 pm
SEA
- STT
2 stops15h 03m
United Airlines
Mi 5/131:22 pm
STT
- SEA
2 stops12h 37m
United Airlines
Deal found 4/16![United Airlines logo]()
$453
This FlightHub deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Fr 5/811:37 am
SEA
- MBJ
2 stops46h 34m
Frontier
Di 5/121:16 pm
MBJ
- SEA
2 stops22h 33m
Frontier
Deal found 4/15![Frontier logo]()
$484
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” 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.
Sa 5/167:15 am
SEA
- SJU
1 stop13h 20m
Delta
Sa 5/237:05 am
SJU
- SEA
1 stop16h 05m
Delta
Deal found 4/12![Delta logo]()
$475
This KAYAK deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 5/2711:52 pm
SEA
- SJU
1 stop12h 38m
JetBlue
Sa 6/69:52 am
SJU
- SEA
1 stop14h 04m
JetBlue
Deal found 4/16![JetBlue logo]()
$453
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 17, 2026.
Search for one-way flight options from Seattle to Caribbean. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Sa 5/911:06 am
SEA
- SJU
2 stops24h 01m
Frontier
Deal found 4/15![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Mi 5/137:50 pm
SEA
- SJU
2 stops49h 07m
Frontier
Deal found 4/15![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Fr 5/87:50 pm
SEA
- SJU
2 stops23h 53m
Frontier
Deal found 4/14![Frontier logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Di 5/127:50 pm
SEA
- SJU
2 stops49h 07m
Frontier
Deal found 4/13![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
So 5/177:50 pm
SEA
- SJU
2 stops23h 53m
Frontier
Deal found 4/14![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Fr 5/157:50 pm
SEA
- SJU
2 stops40h 22m
Frontier
Deal found 4/15![Frontier logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” 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.
Sa 5/166:52 pm
SEA
- SJU
2 stops43h 00m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” 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.
Mi 5/67:50 pm
SEA
- SJU
2 stops49h 07m
Frontier
Deal found 4/16![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Mi 5/2711:21 am
SEA
- SJU
2 stops40h 03m
Frontier
Deal found 4/15![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” 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.
Do 5/217:50 pm
SEA
- SJU
2 stops43h 29m
Frontier
Deal found 4/15![Frontier logo]()
$194
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Fr 6/54:15 pm
SEA
- SXM
1 stop18h 51m
Delta
Deal found 4/13![Delta logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” 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.
Fr 5/87:50 pm
SEA
- NAS
2 stops36h 10m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$199
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 17, 2026.
Round-trip from | $440 (American Airlines) |
|---|---|
One-way from | $138 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $645 |
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 17, 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
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mi 4/29
11:10 am-11:13 pm
1 stop9h 03m
San Juan Luis Munoz Marin Intl
Di 5/5
7:15 am-7:59 pm
1 stop15h 44m
$456
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mi 4/29
6:00 am-8:24 pm
1 stop11h 24m
San Juan Luis Munoz Marin Intl
Mi 5/6
2:03 pm-11:59 pm
2 stops12h 56m
$456
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mi 5/27
7:00 am-8:34 pm
1 stop10h 34m
San Juan Luis Munoz Marin Intl
Mi 6/3
1:25 pm-11:44 pm
1 stop13h 19m
$494
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Do 7/9
7:15 am-11:53 pm
1 stop13h 38m
San Juan Luis Munoz Marin Intl
So 7/19
2:05 pm-11:58 pm
2 stops12h 53m
$494
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mo 6/1
10:35 pm-4:29 pm
1 stop14h 54m
San Juan Luis Munoz Marin Intl
Do 6/11
1:10 pm-11:59 pm
2 stops13h 49m
$494
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mi 8/26
10:30 pm-1:45 pm
2 stops12h 15m
San Juan Luis Munoz Marin Intl
So 8/30
6:35 am-5:00 pm
2 stops13h 25m
$510
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Do 9/3
10:30 pm-1:45 pm
2 stops12h 15m
San Juan Luis Munoz Marin Intl
Di 9/8
1:45 pm-11:05 pm
2 stops12h 20m
$510
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Mo 5/4
11:59 pm-3:43 pm
1 stop12h 44m
Saint Thomas Island Cyril E King
Do 5/7
1:22 pm-10:52 pm
1 stop12h 30m
$530
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Di 10/13
4:25 pm-9:05 am
2 stops13h 40m
San Juan Luis Munoz Marin Intl
Mi 10/21
5:35 am-3:45 pm
2 stops13h 10m
$530
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fr 5/8
11:55 pm-1:20 pm
1 stop10h 25m
San Juan Luis Munoz Marin Intl
Do 5/14
2:00 pm-12:05 am
2 stops13h 05m
$530
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-SJU
SEA-MBJ
SEA-SXM
SEA-BGI
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-SJU
SEA-MBJ
SEA-SXM
SEA-BGI
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 17, 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.
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
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 17, 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$199 | Average$647 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$292 | Average$601 | 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$680 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$521 | Average$678 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$727 | FlexibilityNo cancel fee | On-time75% |