$135+ 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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Feb 20 — Feb 271
1 adult, Economy
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Caribbean
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 January 21, 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 January 21, 2026.
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:00 am
SEA
- SJU
1 stop10h 00m
United Airlines
Tue 3/38:05 am
SJU
- SEA
2 stops14h 58m
United Airlines
Deal found 1/19![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:00 am
SEA
- SJU
1 stop10h 39m
American Airlines
Fri 2/272:30 pm
SJU
- SEA
1 stop11h 27m
American Airlines
Deal found 1/19![American Airlines logo]()
$384
This Frontier deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:00 pm
SEA
- PUJ
2 stops22h 02m
Frontier
Thu 2/263:12 pm
PUJ
- SEA
2 stops21h 39m
Frontier
Deal found 1/19![Frontier logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/211:16 pm
SEA
- SJU
2 stops31h 38m
Multiple Airlines
Thu 3/55:08 pm
SJU
- SEA
1 stop20h 57m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$395
This CheapOair deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2011:30 am
SEA
- SJU
1 stop12h 09m
Multiple Airlines
Sat 5/304:10 pm
SJU
- SEA
1 stop18h 35m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3110:43 pm
SEA
- AUA
1 stop12h 43m
Multiple Airlines
Wed 4/83:41 pm
AUA
- SEA
1 stop22h 10m
Multiple Airlines
Deal found 1/20![Multiple Airlines logo]()
$398
This Southwest deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/287:05 am
SEA
- SJU
2 stops13h 35m
Southwest
Thu 3/52:05 pm
SJU
- SEA
2 stops14h 25m
Southwest
Deal found 1/19![Southwest logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/261:16 pm
SEA
- SJU
2 stops31h 27m
Multiple Airlines
Thu 3/55:08 pm
SJU
- SEA
1 stop20h 57m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$400
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:00 am
SEA
- SJU
1 stop9h 25m
United Airlines
Thu 2/262:10 pm
SJU
- SEA
1 stop13h 41m
United Airlines
Deal found 1/20![United Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/239:18 am
SEA
- SJU
2 stops25h 48m
Multiple Airlines
Thu 3/55:08 pm
SJU
- SEA
1 stop20h 57m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$411
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1610:08 pm
SEA
- SJU
1 stop10h 47m
American Airlines
Wed 3/44:51 pm
SJU
- SEA
1 stop10h 49m
American Airlines
Deal found 1/20![American Airlines logo]()
$412
This Trip.com deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2312:00 pm
SEA
- STT
2 stops22h 31m
Multiple Airlines
Wed 2/253:36 pm
STT
- SEA
2 stops24h 25m
Multiple Airlines
Deal found 1/20![Multiple Airlines logo]()
$416
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 January 21, 2026.
Round-trip from | $379 (United Airlines) |
|---|---|
One-way from | $135 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $478 |
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 January 21, 2026.
Use the filters below to find and compare flights from Seattle to Caribbean that are best for you.
Fly from
Seattle
Fly to
Caribbean
Route
Depart
Return
Price
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 5/8
11:14 pm-12:34 pm
1 stop10h 20m
San Juan Luis Munoz Marin Intl
Tue 5/12
7:20 am-7:00 pm
2 stops14h 40m
$384
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Wed 4/15
6:30 am-8:38 pm
1 stop11h 08m
San Juan Luis Munoz Marin Intl
Wed 4/22
1:40 pm-10:56 pm
1 stop12h 16m
$384
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Thu 2/19
7:10 pm-1:17 pm
2 stops14h 07m
San Juan Luis Munoz Marin Intl
Thu 2/26
3:46 pm-11:00 pm
1 stop11h 14m
$384
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sun 3/1
6:45 am-9:26 pm
1 stop10h 41m
San Juan Luis Munoz Marin Intl
Thu 3/5
8:05 am-7:03 pm
2 stops14h 58m
$384
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sat 2/28
12:55 pm-6:11 am
2 stops13h 16m
San Juan Luis Munoz Marin Intl
Thu 3/5
2:25 pm-10:59 pm
1 stop12h 34m
$384
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Sun 3/1
6:25 pm-10:30 am
2 stops12h 05m
San Juan Luis Munoz Marin Intl
Thu 3/5
2:05 pm-12:30 am
2 stops14h 25m
$399
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Fri 2/27
4:30 pm-10:00 am
2 stops13h 30m
San Juan Luis Munoz Marin Intl
Thu 3/5
2:05 pm-12:30 am
2 stops14h 25m
$428
SeattleSan Juan
SEA - SJU
SEASJU
Seattle/Tacoma Intl
Mon 3/23
6:45 am-8:26 pm
1 stop10h 41m
San Juan Luis Munoz Marin Intl
Tue 3/31
7:00 am-6:00 pm
2 stops14h 00m
$440
SeattleMontego Bay
SEA - MBJ
SEAMBJ
Seattle/Tacoma Intl
Sun 3/8
11:59 pm-1:27 pm
1 stop11h 28m
Montego Bay Sangster Intl
Thu 3/12
11:15 am-11:55 pm
1 stop14h 40m
$442
SeattleMontego Bay
SEA - MBJ
SEAMBJ
Seattle/Tacoma Intl
Wed 3/4
4:05 pm-11:10 am
1 stop16h 05m
Montego Bay Sangster Intl
Sun 3/8
2:42 pm-11:38 pm
1 stop10h 56m
$442
Showing 1-10 of 60 results
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.
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
What is the cheapest month to book a flight from Seattle to Caribbean?
Currently, January is the cheapest month in which you can book a flight from Seattle to Caribbean (average of $215). Flying from Seattle to Caribbean in July is currently the most expensive (average of $477). 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 January 21, 2026.
See what other customers who have flown with Southwest, Delta, and United 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
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
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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.
Top 10 airlines flying from Seattle to Caribbean
Discover the top 10 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 January 21, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$175 | Average$344 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$191 | Average$383 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$218 | Average$652 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$268 | Average$618 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$282 | Average$547 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$340 | Average$708 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$363 | Average$706 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$368 | Average$762 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$521 | Average$753 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$544 | Average$828 | FlexibilityNo cancel fee | On-time83% |