$190+ Cheap flights from Seattle (SEA) to Caribbean
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Aug 7 — Aug 141
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Caribbean with Cheapflights
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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 July 8, 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 July 8, 2026.
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:45 pm
SEA
- SJU
2 stops15h 00m
Delta
Sat 12/127:15 am
SJU
- SEA
1 stop16h 08m
Delta
Deal found 7/6![Delta logo]()
$464
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:00 am
SEA
- SJU
2 stops12h 20m
Southwest
Tue 10/276:35 am
SJU
- SEA
2 stops15h 30m
Southwest
Deal found 7/2![Southwest logo]()
$466
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:25 am
SEA
- SJU
1 stop14h 34m
American Airlines
Tue 9/86:00 am
SJU
- SEA
1 stop21h 20m
American Airlines
Deal found 7/7![American Airlines logo]()
$469
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1510:08 pm
SEA
- STT
1 stop9h 59m
American Airlines
Mon 11/2312:57 pm
STT
- SEA
1 stop14h 43m
American Airlines
Deal found 7/6![American Airlines logo]()
$474
This JetBlue deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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.
Wed 9/211:45 pm
SEA
- SJU
1 stop11h 26m
JetBlue
Sun 9/61:50 pm
SJU
- SEA
1 stop11h 59m
JetBlue
Deal found 7/4![JetBlue logo]()
$475
This Trip.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:06 pm
SEA
- SJU
2 stops28h 09m
Frontier
Sat 8/223:10 am
SJU
- SEA
2 stops36h 10m
Frontier
Deal found 7/2![Frontier logo]()
$487
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:16 pm
SEA
- SJU
2 stops13h 55m
American Airlines
Sun 9/204:38 pm
SJU
- SEA
1 stop10h 14m
American Airlines
Deal found 7/6![American Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/511:59 pm
SEA
- STT
2 stops12h 59m
American Airlines
Sun 12/136:17 pm
STT
- SEA
2 stops19h 14m
American Airlines
Deal found 7/7![American Airlines logo]()
$494
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:00 am
SEA
- SJU
2 stops12h 20m
Southwest
Sat 10/101:00 pm
SJU
- SEA
2 stops11h 40m
Southwest
Deal found 7/2![Southwest logo]()
$500
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/116:05 pm
SEA
- SJU
2 stops14h 52m
United Airlines
Thu 10/152:55 pm
SJU
- SEA
1 stop10h 50m
United Airlines
Deal found 7/5![United Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:05 pm
SEA
- STT
2 stops14h 02m
United Airlines
Sun 11/13:00 pm
STT
- SEA
1 stop11h 53m
United Airlines
Deal found 7/6![United Airlines logo]()
$506
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1710:35 pm
SEA
- STT
1 stop12h 04m
Delta
Wed 10/282:49 pm
STT
- SEA
1 stop12h 03m
Delta
Deal found 7/7![Delta logo]()
$509
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 July 8, 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 July 8, 2026.
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:10 am
SEA
- SJU
2 stops11h 50m
Southwest
Fri 8/2810:00 am
SJU
- SEA
2 stops13h 45m
Southwest
Deal found 7/3![Southwest logo]()
$464
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:15 am
SEA
- SJU
1 stop13h 33m
Delta
Sat 10/37:30 am
SJU
- SEA
1 stop14h 00m
Delta
Deal found 7/6![Delta logo]()
$464
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:40 pm
SEA
- MBJ
2 stops12h 49m
United Airlines
Sat 12/123:20 pm
MBJ
- SEA
1 stop10h 18m
United Airlines
Deal found 7/5![United Airlines logo]()
$552
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:10 am
SEA
- SJU
1 stop15h 49m
American Airlines
Sun 8/2312:55 am
SJU
- SEA
1 stop11h 34m
American Airlines
Deal found 7/2![American Airlines logo]()
$576
This FlightHub deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:40 pm
SEA
- AUA
1 stop14h 50m
JetBlue
Thu 9/171:50 pm
AUA
- SEA
2 stops33h 52m
JetBlue
Deal found 7/7![JetBlue logo]()
$702
This Copa Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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.
Mon 10/2612:20 pm
SEA
- CUR
2 stops23h 16m
Copa Airlines
Mon 11/23:34 pm
CUR
- SEA
2 stops35h 42m
Copa Airlines
Deal found 7/3![Copa Airlines logo]()
$705
This Justfly.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
Sat 11/78:40 am
SEA
- PLS
2 stops25h 10m
Air Canada
Sun 11/151:50 pm
PLS
- SEA
2 stops34h 09m
Air Canada
Deal found 7/2![Air Canada logo]()
$727
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:59 pm
SEA
- STT
1 stop10h 40m
Delta
Wed 11/43:49 pm
STT
- SEA
1 stop10h 14m
Delta
Deal found 7/7![Delta logo]()
$474
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:00 am
SEA
- SJU
2 stops12h 20m
Southwest
Sat 10/101:00 pm
SJU
- SEA
2 stops11h 40m
Southwest
Deal found 7/2![Southwest logo]()
$500
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:59 pm
SEA
- STT
1 stop10h 40m
Delta
Tue 11/33:49 pm
STT
- SEA
1 stop10h 14m
Delta
Deal found 7/7![Delta logo]()
$474
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:15 pm
SEA
- SJU
2 stops15h 39m
United Airlines
Sun 9/61:00 am
SJU
- SEA
1 stop13h 03m
United Airlines
Deal found 7/6![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:59 pm
SEA
- SJU
1 stop12h 43m
United Airlines
Fri 8/287:00 am
SJU
- SEA
2 stops16h 43m
United Airlines
Deal found 7/7![United Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 11/1210:08 pm
SEA
- PLS
1 stop9h 15m
American Airlines
Thu 11/191:12 pm
PLS
- SEA
2 stops14h 23m
American Airlines
Deal found 7/3![American Airlines logo]()
$624
This Southwest deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/292:05 pm
SEA
- NAS
2 stops20h 10m
Southwest
Mon 11/21:10 pm
NAS
- SEA
2 stops12h 50m
Southwest
Deal found 7/5![Southwest logo]()
$594
This Delta deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/59:55 pm
SEA
- MBJ
1 stop11h 30m
Delta
Tue 12/86:00 pm
MBJ
- SEA
1 stop19h 26m
Delta
Deal found 7/5![Delta logo]()
$552
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/26:15 pm
SEA
- SJU
2 stops15h 39m
United Airlines
Sat 9/51:00 am
SJU
- SEA
2 stops18h 07m
United Airlines
Deal found 7/4![United Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 11/411:59 pm
SEA
- PLS
2 stops11h 36m
American Airlines
Wed 11/1111:25 am
PLS
- SEA
2 stops14h 40m
American Airlines
Deal found 7/4![American Airlines logo]()
$629
This Copa Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:27 pm
SEA
- CUR
2 stops16h 51m
Copa Airlines
Tue 11/103:34 pm
CUR
- SEA
2 stops23h 40m
Copa Airlines
Deal found 7/7![Copa Airlines logo]()
$711
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 12/33:30 pm
SEA
- MBJ
1 stop17h 55m
Delta
Sat 12/126:00 pm
MBJ
- SEA
1 stop19h 26m
Delta
Deal found 7/2![Delta logo]()
$552
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:59 pm
SEA
- SJU
1 stop12h 43m
United Airlines
Tue 9/81:00 am
SJU
- SEA
2 stops17h 45m
United Airlines
Deal found 7/4![United Airlines logo]()
$554
This Copa Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:29 pm
SEA
- CUR
2 stops15h 07m
Copa Airlines
Tue 11/37:21 pm
CUR
- SEA
2 stops31h 55m
Copa Airlines
Deal found 7/6![Copa Airlines logo]()
$716
This FlightHub deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:40 pm
SEA
- KIN
2 stops19h 40m
JetBlue
Sun 9/131:50 pm
KIN
- SEA
2 stops32h 52m
JetBlue
Deal found 7/6![JetBlue logo]()
$792
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:59 pm
SEA
- MBJ
1 stop14h 35m
Delta
Mon 9/281:14 pm
MBJ
- SEA
1 stop12h 45m
Delta
Deal found 7/3![Delta logo]()
$552
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 11/710:07 pm
SEA
- PLS
1 stop13h 28m
American Airlines
Sun 11/1511:25 am
PLS
- SEA
1 stop15h 15m
American Airlines
Deal found 7/2![American Airlines logo]()
$684
This United Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:51 pm
SEA
- NAS
2 stops13h 58m
United Airlines
Mon 11/22:40 pm
NAS
- SEA
1 stop11h 15m
United Airlines
Deal found 7/5![United Airlines logo]()
$590
This Copa Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:52 pm
SEA
- AUA
2 stops16h 51m
Copa Airlines
Thu 9/177:10 am
AUA
- SEA
2 stops19h 16m
Copa Airlines
Deal found 7/7![Copa Airlines logo]()
$733
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:59 pm
SEA
- STT
1 stop10h 40m
Delta
Sun 11/13:49 pm
STT
- SEA
1 stop10h 14m
Delta
Deal found 7/7![Delta logo]()
$555
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 7/2310:45 pm
SEA
- AUA
2 stops13h 00m
Southwest
Mon 7/271:45 pm
AUA
- SEA
2 stops15h 00m
Southwest
Deal found 7/3![Southwest logo]()
$766
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/215:34 pm
SEA
- KIN
2 stops16h 30m
American Airlines
Sun 9/275:08 pm
KIN
- SEA
2 stops20h 04m
American Airlines
Deal found 7/3![American Airlines logo]()
$706
This Copa Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:45 pm
SEA
- AUA
2 stops18h 58m
Copa Airlines
Thu 9/37:10 am
AUA
- SEA
2 stops19h 16m
Copa Airlines
Deal found 7/7![Copa Airlines logo]()
$733
Last-minute flights from Seattle to CaribbeanDiscover last-minute flight deals from Seattle to Caribbean. Data last updated July 8, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Caribbean. Data last updated July 8, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:05 am
SEA
- SJU
1 stop15h 45m
American Airlines
Sun 8/912:55 am
SJU
- SEA
1 stop11h 34m
American Airlines
Deal found 7/5![American Airlines logo]()
$555
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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 8/1711:56 pm
SEA
- SJU
2 stops11h 55m
American Airlines
Wed 9/21:38 pm
SJU
- SEA
1 stop13h 42m
American Airlines
Deal found 7/2![American Airlines logo]()
$510
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:10 am
SEA
- SJU
2 stops11h 50m
Southwest
Thu 8/2711:35 am
SJU
- SEA
2 stops12h 10m
Southwest
Deal found 7/2![Southwest logo]()
$464
This Trip.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:06 pm
SEA
- SJU
2 stops28h 09m
Frontier
Sat 8/223:10 am
SJU
- SEA
2 stops36h 10m
Frontier
Deal found 7/2![Frontier logo]()
$487
This Southwest deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:10 am
SEA
- SJU
2 stops11h 50m
Southwest
Mon 8/245:00 am
SJU
- SEA
2 stops12h 55m
Southwest
Deal found 7/5![Southwest logo]()
$514
This American Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:56 pm
SEA
- SJU
2 stops13h 15m
American Airlines
Sat 8/2212:55 am
SJU
- SEA
1 stop11h 34m
American Airlines
Deal found 7/6![American Airlines logo]()
$469
This Southwest deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:10 am
SEA
- SJU
2 stops11h 50m
Southwest
Sun 8/2310:05 am
SJU
- SEA
2 stops11h 35m
Southwest
Deal found 7/6![Southwest logo]()
$535
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:00 pm
SEA
- SJU
1 stop12h 44m
United Airlines
Sat 8/291:00 am
SJU
- SEA
2 stops13h 44m
United Airlines
Deal found 7/6![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2311:59 pm
SEA
- SJU
1 stop12h 43m
United Airlines
Fri 8/287:00 am
SJU
- SEA
2 stops16h 43m
United Airlines
Deal found 7/6![United Airlines logo]()
$554
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:21 pm
SEA
- STT
1 stop13h 32m
American Airlines
Tue 9/11:49 pm
STT
- SEA
2 stops22h 40m
American Airlines
Deal found 7/7![American Airlines logo]()
$494
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:59 pm
SEA
- MBJ
1 stop13h 35m
Delta
Thu 9/1012:59 pm
MBJ
- SEA
1 stop12h 21m
Delta
Deal found 7/6![Delta logo]()
$552
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:56 pm
SEA
- MBJ
1 stop11h 16m
American Airlines
Thu 9/101:54 pm
MBJ
- SEA
2 stops21h 29m
American Airlines
Deal found 7/7![American Airlines logo]()
$557
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 July 8, 2026.
Search for one-way flight options from Seattle to Caribbean. Find affordable one-way fares based on user searches. Data last updated July 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:53 pm
SEA
- SJU
2 stops48h 48m
Frontier
Deal found 7/3![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/247:00 am
SEA
- SJU
2 stops37h 57m
Frontier
Deal found 7/3![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:06 pm
SEA
- SJU
2 stops17h 51m
Frontier
Deal found 7/6![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:06 pm
SEA
- SJU
2 stops12h 58m
Frontier
Deal found 7/6![Frontier logo]()
$224
This Cheapflightsfares deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 9/511:40 pm
SEA
- SJU
1 stop11h 20m
JetBlue
Deal found 7/3![JetBlue logo]()
$230
This American Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:21 pm
SEA
- SJU
1 stop13h 19m
American Airlines
Deal found 7/7![American Airlines logo]()
$232
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 8/2411:16 pm
SEA
- SJU
2 stops13h 55m
American Airlines
Deal found 7/3![American Airlines logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” 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 9/12:37 pm
SEA
- AUA
3 stops25h 53m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$237
This deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:55 pm
SEA
- SJU
1 stop11h 28m
JetBlue
Deal found 7/3![JetBlue logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/258:13 pm
SEA
- SJU
2 stops49h 28m
Frontier
Deal found 7/5![Frontier logo]()
$246
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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 10/123:55 pm
SEA
- MBJ
1 stop17h 30m
Delta
Deal found 7/3![Delta logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:41 pm
SEA
- NAS
2 stops41h 34m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$258
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 July 8, 2026.
Round-trip from | $464 (Delta) |
|---|---|
One-way from | $190 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $707 |
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 July 8, 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
Tue 8/18
7:10 am-10:00 pm
2 stops11h 50m
San Juan Luis Munoz Marin Intl
Fri 8/28
10:00 am-8:45 pm
2 stops13h 45m
$464
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 9/23
7:15 am-11:48 pm
1 stop13h 33m
San Juan Luis Munoz Marin Intl
Sat 10/3
7:30 am-6:30 pm
1 stop14h 00m
$464
Quickest round-trip
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Sun 10/25
11:59 pm-1:39 pm
1 stop10h 40m
Saint Thomas Island Cyril E King
Wed 11/4
3:49 pm-10:03 pm
1 stop10h 14m
$474
SeattleSaint Thomas Island
SEA - STT
SEASTT
Seattle/Tacoma Intl
Sun 10/25
11:59 pm-1:39 pm
1 stop10h 40m
Saint Thomas Island Cyril E King
Tue 11/3
3:49 pm-10:03 pm
1 stop10h 14m
$474
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 10/1
9:00 am-12:20 am
2 stops12h 20m
San Juan Luis Munoz Marin Intl
Sat 10/10
1:00 pm-9:40 pm
2 stops11h 40m
$500
SeattleMontego Bay
SEA - MBJ
SEAMBJ
Seattle/Tacoma Intl
Fri 12/4
10:40 pm-2:29 pm
2 stops12h 49m
Montego Bay Sangster Intl
Sat 12/12
3:20 pm-10:38 pm
1 stop10h 18m
$552
SeattleMontego Bay
SEA - MBJ
SEAMBJ
Seattle/Tacoma Intl
Sat 12/5
9:55 pm-12:25 pm
1 stop11h 30m
Montego Bay Sangster Intl
Tue 12/8
6:00 pm-10:26 am
1 stop19h 26m
$552
SeattleMontego Bay
SEA - MBJ
SEAMBJ
Seattle/Tacoma Intl
Thu 12/3
3:30 pm-12:25 pm
1 stop17h 55m
Montego Bay Sangster Intl
Sat 12/12
6:00 pm-10:26 am
1 stop19h 26m
$552
SeattleMontego Bay
SEA - MBJ
SEAMBJ
Seattle/Tacoma Intl
Fri 9/25
10:59 pm-3:34 pm
1 stop14h 35m
Montego Bay Sangster Intl
Mon 9/28
1:14 pm-11:59 pm
1 stop12h 45m
$552
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 9/2
6:15 pm-12:54 pm
2 stops15h 39m
San Juan Luis Munoz Marin Intl
Sun 9/6
1:00 am-11:03 am
1 stop13h 03m
$554
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-NAS
SEA-PLS
SEA-CUR
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-NAS
SEA-PLS
What is the cheapest month to book a flight from Seattle to Caribbean?
Currently, May is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $167). Flying from Seattle to Caribbean in January is currently the most expensive (average of $3,881). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Seattle to Caribbean?
Booking 89 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to Caribbean. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Reviews of airlines servicing Caribbean
Get insights into the airlines that provide service to Caribbean. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Caribbean. Reviews last updated July 8, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Seattle to Caribbean have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
7.9
Crew
8.6
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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 July 8, 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 July 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$206 | Average$698 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$278 | Average$595 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$327 | Average$559 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$349 | Average$681 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$366 | Average$725 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$454 | Average$828 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$474 | Average$677 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$587 | Average$678 | FlexibilityNo cancel fee | On-time75% |