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Caribbean Islands

$119+ Cheap flights from Seattle (SEA) to Caribbean Islands

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Dec 18 — Dec 251
Thu 12/18
Thu 12/25
1 adult, Economy
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Find flight deals from Seattle to Caribbean Islands

Cheapest flights from Seattle to Caribbean Islands
Explore the most affordable flight options available from Seattle to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 18, 2025.

This American Airlines deal was found by Cheapflights users on 11/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/610:07 pmSEA - MBJ
1 stop11h 48mAmerican Airlines
Sat 12/133:12 pmMBJ - SEA
1 stop11h 13mAmerican Airlines
Deal found 11/17$416
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:45 amSEA - SJU
1 stop10h 50mMultiple Airlines
Wed 12/247:30 amSJU - SEA
2 stops33h 00mMultiple Airlines
Deal found 11/17$416
This Kiwi.com deal was found by Cheapflights users on 11/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/159:45 amSEA - SJU
1 stop10h 50mMultiple Airlines
Fri 12/196:00 amSJU - SEA
2 stops22h 42mMultiple Airlines
Deal found 11/17$419
This Delta deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/211:00 pmSEA - MBJ
1 stop11h 04mDelta
Sun 12/72:29 pmMBJ - SEA
1 stop12h 29mDelta
Deal found 11/18$421
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Mon 12/19:53 pmSEA - SJU
2 stops42h 34mMultiple Airlines
Sun 12/141:27 pmSJU - SEA
1 stop23h 19mMultiple Airlines
Deal found 11/16$421
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Sat 12/1312:48 pmSEA - SJU
2 stops27h 02mMultiple Airlines
Tue 12/235:14 pmSJU - SEA
1 stop21h 10mMultiple Airlines
Deal found 11/16$425
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Fri 12/129:45 amSEA - SJU
1 stop10h 50mMultiple Airlines
Sun 12/217:35 amSJU - SEA
2 stops30h 36mMultiple Airlines
Deal found 11/16$427
This American Airlines deal was found by Cheapflights users on 11/16. 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.
Sun 12/76:00 amSEA - SJU
1 stop12h 05mAmerican Airlines
Sun 12/147:00 amSJU - SEA
1 stop18h 13mAmerican Airlines
Deal found 11/16$428
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Fri 12/129:45 amSEA - SJU
1 stop10h 50mMultiple Airlines
Thu 12/257:00 amSJU - SEA
2 stops31h 11mMultiple Airlines
Deal found 11/16$430
This American Airlines deal was found by Cheapflights users on 11/16. 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.
Mon 12/110:07 pmSEA - PUJ
1 stop11h 55mAmerican Airlines
Sat 12/612:53 pmPUJ - SEA
1 stop14h 23mAmerican Airlines
Deal found 11/16$430
This American Airlines deal was found by Cheapflights users on 11/17. 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.
Tue 12/210:07 pmSEA - MBJ
2 stops11h 53mAmerican Airlines
Sun 12/75:02 pmMBJ - SEA
2 stops19h 40mAmerican Airlines
Deal found 11/17$431
This eDestinos deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/45:50 pmSEA - SJU
2 stops26h 59mMultiple Airlines
Mon 12/87:10 amSJU - SEA
1 stop20h 09mMultiple Airlines
Deal found 11/18$431

Cheap flight deals from Seattle to Caribbean Islands

Keep the following information in mind while searching for Seattle to Caribbean Islands flight deals. Data was last updated November 18, 2025.

Round-trip from

$411
(American Airlines)

One-way from

$119
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$539
From Seattle/Tacoma Intl to Caribbean Islands
Search Deals
One-way flight from Seattle/Tacoma Intl to Caribbean Islands
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Caribbean Islands that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 18, 2025.
Use the filters below to find and compare flights from Seattle to Caribbean Islands that are best for you.

Fly from

Seattle

Fly to

Caribbean Islands

Route

Depart

Return

Price

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Fri 12/12

2:25 pm-12:30 pm

1 stop19h 05m

Montego Bay Sangster Intl

Thu 12/25

12:30 pm-8:43 pm

1 stop11h 13m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Tue 1/13

10:55 pm-11:13 am

1 stop9h 18m

Montego Bay Sangster Intl

Sun 1/18

4:45 pm-10:07 am

1 stop20h 22m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Sat 1/10

9:45 pm-12:34 pm

1 stop11h 49m

Montego Bay Sangster Intl

Sat 1/17

4:45 pm-10:09 am

1 stop20h 24m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Thu 1/15

4:05 pm-11:13 am

1 stop16h 08m

Montego Bay Sangster Intl

Tue 1/20

4:45 pm-10:07 am

1 stop20h 22m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Mon 1/12

10:55 pm-11:13 am

1 stop9h 18m

Montego Bay Sangster Intl

Sun 1/18

4:45 pm-10:07 am

1 stop20h 22m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Mon 1/12

1:45 pm-12:34 pm

1 stop19h 49m

Montego Bay Sangster Intl

Thu 1/15

4:45 pm-10:09 am

1 stop20h 24m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Thu 1/15

4:05 pm-11:13 am

1 stop16h 08m

Montego Bay Sangster Intl

Sun 1/18

4:45 pm-10:07 am

1 stop20h 22m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Fri 12/12

2:25 pm-12:30 pm

1 stop19h 05m

Montego Bay Sangster Intl

Wed 12/24

8:00 am-11:58 pm

1 stop18h 58m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Fri 1/9

9:55 pm-12:34 pm

1 stop11h 39m

Montego Bay Sangster Intl

Sun 1/18

4:45 pm-10:07 am

1 stop20h 22m

$421

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Sun 1/11

10:55 pm-11:13 am

1 stop9h 18m

Montego Bay Sangster Intl

Sun 1/18

4:45 pm-10:07 am

1 stop20h 22m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/18

Showing 1-10 of 60 results
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Best time to book a flight from Seattle to Caribbean Islands

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Caribbean Islands

What is the cheapest month to book a flight from Seattle to Caribbean Islands?

Currently, October is the cheapest month in which you can book a flight from Seattle to Caribbean Islands (average of $220). Flying from Seattle to Caribbean Islands 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.

What is the cheapest time of day to fly from SEA to EPX?

Find hourly flight availability from Seattle to Caribbean Islands. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 18, 2025.

It’s optimal to fly from Seattle to Caribbean Islands at noon. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Seattle to Caribbean Islands?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Caribbean Islands. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Caribbean Islands flight should consider departing on Monday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Caribbean Islands

Get insights into the airlines that provide service to Caribbean Islands. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Caribbean Islands. Reviews last updated November 18, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta from Seattle to Caribbean Islands to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,317 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,317 reviews
Alaska Airlines
8.0
Very good
11,317 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
11,317 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,003 reviews
Alaska Airlines
8.0
Very good
11,317 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,019 reviews
Alaska Airlines
8.0
Very good
11,317 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
American Airlines
7.2
Good
11,045 reviews
Alaska Airlines
8.0
Very good
11,317 reviews

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Caribbean Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Caribbean Islands?

    Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Caribbean Islands.

  • How long is the flight from Seattle to Caribbean Islands?

    There are many flights that can get you from Seattle to Caribbean Islands in 9h 18m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. Seattle and Caribbean Islands are separated by a distance of 3609 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Seattle to Caribbean Islands one-way?

    The cheapest airlines for a one-way flight from Seattle to Caribbean Islands are American Airlines ($182), Delta ($187), and Sun Country Air ($237).

  • What are the most popular routes from Seattle to Caribbean Islands?

    When deciding which route to take from Seattle to Caribbean Islands consider Seattle/Tacoma Intl - San Juan Luis Munoz Marin Intl, Seattle/Tacoma Intl - Punta Cana or Seattle/Tacoma Intl - Saint Thomas Island Cyril E King as they are the most popular.

  • Can I find deals for flights from Seattle to Caribbean Islands that include hotel bookings?

    Yes. In addition to deals on Seattle to Caribbean Islands flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Caribbean Islands?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Caribbean Islands.

  • Can I find deals for business class flights from Seattle to Caribbean Islands?

    Yes. Cheapflights offers flight deals from Seattle to Caribbean Islands by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Caribbean Islands?

    Currently, October is the cheapest month in which you can book a flight from Seattle to Caribbean Islands (average of $220). Flying from Seattle to Caribbean Islands 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.

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Top 10 airlines flying from Seattle to Caribbean Islands

Discover the top 10 airlines that operate flights from Seattle to Caribbean Islands. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$175Average$698FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$208Average$422FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$327Average$625FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$340Average$669FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$352Average$718FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$354Average$635FlexibilityNo cancel feeOn-time69%
DeltaCheapest$357Average$689FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$447Average$810FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$521Average$757FlexibilityNo cancel feeOn-time63%
Air CanadaCheapest$632Average$914FlexibilityNo cancel feeOn-time67%

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