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Caribbean Islands

$182+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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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 August 20, 2025.

Round-trip from

$358
(Priceline)

One-way from

$182
(JetBlue)

Popular in

December

Cheapest in

January

Average price

$678
From Seattle/Tacoma Intl to Caribbean Islands
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One-way flight from Seattle/Tacoma Intl to Caribbean Islands
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Highest demand for flights based on searches. 2% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 20, 2025.

This flygcity.se deal was found by Cheapflights users on 8/20. 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 flygcity.se is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2211:59 pmSEA - SJU
1 stop13h 56mJetBlue
Tue 10/712:50 pmSJU - SEA
1 stop12h 20mJetBlue
Deal found 8/20$345
This Priceline deal was found by Cheapflights users on 8/19. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:40 pmSEA - SJU
1 stop18h 44mJetBlue
Thu 10/26:00 amSJU - SEA
1 stop19h 24mJetBlue
Deal found 8/19$358
This Priceline deal was found by Cheapflights users on 8/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:40 pmSEA - SJU
1 stop18h 44mJetBlue
Mon 10/63:03 amSJU - SEA
1 stop22h 07mJetBlue
Deal found 8/18$362
This JetBlue deal was found by Cheapflights users on 8/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/411:59 pmSEA - SJU
1 stop11h 55mJetBlue
Tue 10/712:50 pmSJU - SEA
1 stop12h 20mJetBlue
Deal found 8/18$370
This CheapOair deal was found by Cheapflights users on 8/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1711:40 pmSEA - SJU
1 stop22h 17mJetBlue
Fri 10/242:05 pmSJU - SEA
1 stop11h 05mJetBlue
Deal found 8/18$372
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Tue 9/238:51 pmSEA - SJU
1 stop12h 56mAmerican Airlines
Tue 9/306:10 amSJU - SEA
2 stops13h 43mAmerican Airlines
Deal found 8/19$377
This JetBlue deal was found by Cheapflights users on 8/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1711:59 pmSEA - SJU
1 stop11h 57mJetBlue
Mon 9/221:25 pmSJU - SEA
1 stop11h 59mJetBlue
Deal found 8/18$381
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/35:43 pmSEA - SJU
1 stop17h 32mAmerican Airlines
Tue 10/711:56 amSJU - SEA
2 stops12h 52mAmerican Airlines
Deal found 8/18$387
This JetBlue deal was found by Cheapflights users on 8/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:59 pmSEA - SJU
1 stop13h 44mJetBlue
Tue 9/301:25 pmSJU - SEA
1 stop11h 55mJetBlue
Deal found 8/18$394
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Sat 12/611:59 pmSEA - SJU
1 stop12h 37mUnited Airlines
Fri 12/122:05 amSJU - SEA
1 stop13h 11mUnited Airlines
Deal found 8/19$399
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/177:00 pmSEA - SJU
2 stops14h 00mUnited Airlines
Wed 9/241:25 pmSJU - SEA
1 stop11h 41mUnited Airlines
Deal found 8/18$400
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:55 pmSEA - SJU
2 stops14h 39mUnited Airlines
Sat 10/41:05 amSJU - SEA
1 stop12h 12mUnited Airlines
Deal found 8/18$401

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 August 20, 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

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 9/22

11:59 pm-4:55 pm

1 stop13h 56m

San Juan Luis Munoz Marin Intl

Tue 10/7

12:50 pm-10:10 pm

1 stop12h 20m

$345

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 9/30

11:40 pm-9:24 pm

1 stop18h 44m

San Juan Luis Munoz Marin Intl

Thu 10/2

6:00 am-10:24 pm

1 stop19h 24m

$358

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 10/4

11:59 pm-4:57 pm

1 stop13h 58m

San Juan Luis Munoz Marin Intl

Wed 10/15

12:50 pm-10:10 pm

1 stop12h 20m

$362

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 10/3

11:40 pm-9:24 pm

1 stop18h 44m

San Juan Luis Munoz Marin Intl

Mon 10/6

3:03 am-10:10 pm

1 stop22h 07m

$362

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 10/10

11:40 pm-9:24 pm

1 stop18h 44m

San Juan Luis Munoz Marin Intl

Tue 10/14

12:50 pm-10:10 pm

1 stop12h 20m

$362

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 10/20

11:40 pm-9:24 pm

1 stop18h 44m

San Juan Luis Munoz Marin Intl

Fri 10/24

12:50 pm-10:10 pm

1 stop12h 20m

$362

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 9/23

11:59 pm-4:43 pm

1 stop13h 44m

San Juan Luis Munoz Marin Intl

Tue 9/30

1:25 pm-10:20 pm

1 stop11h 55m

$362

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Fri 9/12

11:40 pm-3:33 pm

1 stop12h 53m

Punta Cana

Fri 9/26

1:28 pm-10:24 pm

1 stop11h 56m

$416

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Tue 11/11

10:08 pm-3:46 pm

1 stop13h 38m

Punta Cana

Tue 11/18

3:34 pm-11:40 pm

1 stop12h 06m

$429

SeattlePunta Cana

SEA - PUJ

SEAPUJ

Seattle/Tacoma Intl

Mon 11/17

12:59 am-4:24 pm

2 stops11h 25m

Punta Cana

Tue 11/25

3:54 pm-9:45 am

1 stop21h 51m

$434

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

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, September is the cheapest month in which you can book a flight from Seattle to Caribbean Islands (average of $254). Flying from Seattle to Caribbean Islands in June is currently the most expensive (average of $339). 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 August 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Caribbean Islands as you normally would.

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 August 20, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and United Airlines 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
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,928 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
JetBlue
7.2
Good
2,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Crew

8.5

Boarding

8.1

Comfort

7.8

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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 11h 29m. Fly via JetBlue, American Airlines, or Delta to get the fastest option. Seattle and Caribbean Islands are separated by a distance of 2881 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 JetBlue ($182), American Airlines ($203), and Delta ($219).

  • 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 - Port of Spain Piarco Intl or Seattle/Tacoma Intl - Punta Cana 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, September is the cheapest month in which you can book a flight from Seattle to Caribbean Islands (average of $254). Flying from Seattle to Caribbean Islands in June is currently the most expensive (average of $339). 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.

See more FAQs

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Alternative routes for Seattle to Caribbean Islands

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$175Average$818FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$208Average$422FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$292Average$670FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$326Average$651FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$337Average$713FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$340Average$677FlexibilityNo cancel feeOn-time75%
DeltaCheapest$365Average$696FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$447Average$832FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$521Average$759FlexibilityNo cancel feeOn-time63%
Air CanadaCheapest$632Average$802FlexibilityNo cancel feeOn-time67%

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