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Caribbean Islands

$131+ Cheap flights from Washington 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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Cheap flight deals from Washington to Caribbean Islands

Keep the following information in mind while searching for Washington to Caribbean Islands flight deals. Data was last updated January 8, 2026.

Round-trip from

$364
(United Airlines)

One-way from

$131
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$472
From Washington to Caribbean Islands
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One-way flight from Washington to Caribbean Islands
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Highest demand for flights based on searches. 3% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Washington to Caribbean Islands

Cheapest flights from Washington to Caribbean Islands
Explore the most affordable flight options available from Washington to Caribbean Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 8, 2026.

This American Airlines deal was found by Cheapflights users on 1/7. 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 1/297:35 amSEA - SJU
2 stops12h 24mAmerican Airlines
Thu 2/57:07 amSJU - SEA
1 stop16h 11mAmerican Airlines
Deal found 1/7$364
This American Airlines deal was found by Cheapflights users on 1/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/210:08 pmSEA - SJU
1 stop12h 55mAmerican Airlines
Wed 3/117:40 amSJU - SEA
1 stop16h 28mAmerican Airlines
Deal found 1/8$365
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/155:55 pmSEA - PUJ
1 stop14h 35mMultiple Airlines
Tue 2/247:30 pmPUJ - SEA
1 stop18h 21mMultiple Airlines
Deal found 1/7$377
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:55 pmSEA - PUJ
2 stops18h 41mMultiple Airlines
Sat 2/285:47 amPUJ - SEA
1 stop18h 29mMultiple Airlines
Deal found 1/7$378
This United Airlines deal was found by Cheapflights users on 1/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1610:10 pmSEA - SJU
1 stop11h 24mUnited Airlines
Fri 10/232:00 pmSJU - SEA
2 stops14h 07mUnited Airlines
Deal found 1/8$379
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/215:55 pmSEA - PUJ
2 stops18h 41mMultiple Airlines
Tue 2/247:30 pmPUJ - SEA
1 stop18h 21mMultiple Airlines
Deal found 1/7$379
This American Airlines deal was found by Cheapflights users on 1/7. 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.
Mon 2/166:13 pmSEA - SJU
2 stops11h 47mAmerican Airlines
Wed 3/181:30 pmSJU - SEA
1 stop11h 27mAmerican Airlines
Deal found 1/7$389
This American Airlines deal was found by Cheapflights users on 1/7. 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.
Mon 3/25:37 amSEA - SJU
2 stops11h 57mAmerican Airlines
Tue 3/37:00 amSJU - SEA
2 stops12h 57mAmerican Airlines
Deal found 1/7$390
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/155:55 pmSEA - PUJ
1 stop14h 35mMultiple Airlines
Wed 2/251:01 pmPUJ - SEA
2 stops49h 54mMultiple Airlines
Deal found 1/7$390
This Trip.com deal was found by Cheapflights users on 1/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/2212:34 pmSEA - SJU
2 stops17h 50mFrontier
Sun 1/258:00 amSJU - SEA
2 stops31h 19mFrontier
Deal found 1/8$394
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Fri 2/2712:07 amSEA - SJU
2 stops11h 42mAmerican Airlines
Wed 3/47:00 amSJU - SEA
2 stops12h 57mAmerican Airlines
Deal found 1/6$395
This United Airlines deal was found by Cheapflights users on 1/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:55 pmSEA - SJU
1 stop12h 47mUnited Airlines
Mon 5/41:40 pmSJU - SEA
1 stop12h 19mUnited Airlines
Deal found 1/8$399

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 January 8, 2026.
Use the filters below to find and compare flights from Washington to Caribbean Islands that are best for you.

Fly from

Washington

Fly to

Caribbean Islands

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sun 2/8

8:10 am-10:22 pm

1 stop10h 12m

San Juan Luis Munoz Marin Intl

Wed 2/11

8:35 am-6:14 pm

1 stop13h 39m

$364

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

2:25 pm-10:59 pm

1 stop12h 34m

$364

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 2/28

11:35 pm-2:40 pm

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Wed 3/4

3:46 pm-11:00 pm

1 stop11h 14m

$364

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 3/2

6:13 pm-10:00 am

2 stops11h 47m

San Juan Luis Munoz Marin Intl

Wed 3/11

7:40 am-9:08 pm

1 stop16h 28m

$365

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/1

11:55 pm-3:42 pm

1 stop12h 47m

San Juan Luis Munoz Marin Intl

Mon 5/4

1:40 pm-10:59 pm

1 stop12h 19m

$399

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 3/30

6:45 am-8:38 pm

1 stop10h 53m

San Juan Luis Munoz Marin Intl

Tue 3/31

7:00 am-6:00 pm

2 stops14h 00m

$404

SeattleMontego Bay

SEA - MBJ

SEAMBJ

Seattle/Tacoma Intl

Mon 3/16

11:59 pm-1:05 pm

1 stop11h 06m

Montego Bay Sangster Intl

Mon 3/23

2:20 pm-9:49 am

2 stops21h 29m

$417

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 4/17

5:59 pm-1:14 pm

2 stops16h 15m

San Juan Luis Munoz Marin Intl

Thu 4/23

1:50 pm-9:42 pm

1 stop10h 52m

$420

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 3/30

10:30 pm-1:27 pm

1 stop11h 57m

San Juan Luis Munoz Marin Intl

Thu 4/16

1:50 pm-9:42 pm

1 stop10h 52m

$420

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 2/2

12:40 am-4:50 pm

2 stops12h 10m

San Juan Luis Munoz Marin Intl

Tue 2/10

7:00 am-8:32 pm

2 stops17h 32m

$420

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

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

Have a flexible travel schedule? Discover the best time to fly to Caribbean Islands from Washington 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 Washington to Caribbean Islands

What is the cheapest month to book a flight from State of Washington to Caribbean Islands?

Currently, April is the cheapest month in which you can book a flight from State of Washington to Caribbean Islands (average of $159). Flying from State of Washington to Caribbean Islands in July is currently the most expensive (average of $454). 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.

Related info for your journey

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

  • How long is the flight from State of Washington to Caribbean Islands?

    Airlines like United Airlines, American Airlines, and Delta fly from State of Washington to Caribbean Islands in about 10h 12m. The time it takes to get you to your destination can typically vary by up to 6h 03m. Airlines will cover a distance of 3723 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Caribbean Islands one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $119. American Airlines flights start at $166 while deals on JetBlue start at $170 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Caribbean Islands?

    Currently, April is the cheapest month in which you can book a flight from State of Washington to Caribbean Islands (average of $159). Flying from State of Washington to Caribbean Islands in July is currently the most expensive (average of $454). 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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Top 10 airlines flying from Washington to Caribbean Islands

Discover the top 10 airlines that operate flights from Washington 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 January 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$687FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$175Average$344FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$208Average$422FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$270Average$663FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$327Average$553FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$340Average$677FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$363Average$700FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$494Average$743FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$544Average$828FlexibilityNo cancel feeOn-time83%
Air CanadaCheapest$632Average$841FlexibilityNo cancel feeOn-time67%

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