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$125+ Cheap flights from Washington 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Jan 20 — Jan 271
Tue 1/20
Tue 1/27
1 adult, Economy
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Cheap flight deals from Washington to Caribbean

Cheapest flights from Washington to Caribbean
Explore the most affordable flight options available from Washington to Caribbean. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 21, 2025.

This Delta deal was found by Cheapflights users on 12/18. 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.
Sun 12/2810:55 pmSEA - SJU
1 stop12h 52mDelta
Fri 1/236:09 amSJU - SEA
1 stop12h 09mDelta
Deal found 12/18$523
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/282:54 pmSEA - SJU
2 stops30h 30mMultiple Airlines
Fri 1/235:08 pmSJU - SEA
1 stop18h 59mMultiple Airlines
Deal found 12/18$597
This Expedia deal was found by Cheapflights users on 12/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:50 amSEA - PUJ
2 stops28h 10mAir Canada
Wed 1/710:35 pmPUJ - SEA
2 stops19h 56mAir Canada
Deal found 12/18$597
This Delta deal was found by Cheapflights users on 12/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:10 pmSEA - STT
2 stops16h 55mDelta
Mon 1/123:10 pmSTT - SEA
1 stop11h 40mDelta
Deal found 12/20$602
This United Airlines deal was found by Cheapflights users on 12/20. 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.
Wed 12/3111:59 pmSEA - AUA
1 stop12h 51mUnited Airlines
Sun 1/43:25 pmAUA - SEA
2 stops22h 31mUnited Airlines
Deal found 12/20$627
This Kiwi.com deal was found by Cheapflights users on 12/20. 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.
Sun 12/286:00 amSEA - PUJ
1 stop26h 30mMultiple Airlines
Thu 1/294:35 pmPUJ - SEA
1 stop30h 42mMultiple Airlines
Deal found 12/20$632
This American Airlines deal was found by Cheapflights users on 12/19. 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 12/316:00 amSEA - SJU
1 stop11h 51mAmerican Airlines
Sat 1/106:00 amSJU - SEA
2 stops15h 45mAmerican Airlines
Deal found 12/19$637
This American Airlines deal was found by Cheapflights users on 12/18. 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.
Tue 12/2312:43 pmSEA - SJU
1 stop16h 52mAmerican Airlines
Fri 1/237:07 amSJU - SEA
1 stop12h 27mAmerican Airlines
Deal found 12/18$684
This American Airlines deal was found by Cheapflights users on 12/19. 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.
Fri 12/2611:04 pmSEA - SJU
1 stop10h 44mAmerican Airlines
Sat 1/106:00 amSJU - SEA
2 stops15h 45mAmerican Airlines
Deal found 12/19$687
This Delta deal was found by Cheapflights users on 12/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:47 pmSEA - NAS
1 stop16h 21mDelta
Wed 12/312:27 pmNAS - SEA
1 stop12h 31mDelta
Deal found 12/19$691
This Delta deal was found by Cheapflights users on 12/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:47 pmSEA - NAS
1 stop16h 21mDelta
Wed 12/314:28 pmNAS - SEA
1 stop10h 30mDelta
Deal found 12/19$698
This Air Canada deal was found by Cheapflights users on 12/20. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/283:40 pmSEA - PUJ
2 stops18h 05mAir Canada
Thu 1/2910:35 pmPUJ - SEA
2 stops19h 56mAir Canada
Deal found 12/20$716

Find flight deals from Washington to Caribbean

Keep the following information in mind while searching for Washington to Caribbean flight deals. Data was last updated December 21, 2025.

Round-trip from

$363
(Delta)

One-way from

$125
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$804
From Washington to Caribbean
Search Deals
One-way flight from Washington to Caribbean
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 December 21, 2025.
Use the filters below to find and compare flights from Washington to Caribbean that are best for you.

Fly from

Washington

Fly to

Caribbean

Route

Depart

Return

Price

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Wed 1/28

7:00 am-9:26 pm

1 stop10h 26m

San Juan Luis Munoz Marin Intl

Wed 2/25

7:45 am-6:03 pm

2 stops14h 18m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 5/2

6:00 am-10:54 pm

1 stop13h 54m

San Juan Luis Munoz Marin Intl

Thu 5/7

6:15 am-4:28 pm

1 stop13h 13m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Sat 4/25

7:00 am-8:34 pm

1 stop10h 34m

San Juan Luis Munoz Marin Intl

Wed 4/29

7:00 am-7:45 pm

2 stops15h 45m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 1/12

6:05 pm-1:05 pm

2 stops15h 00m

San Juan Luis Munoz Marin Intl

Wed 1/28

7:00 am-8:46 pm

2 stops17h 46m

$363

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 1/20

8:10 am-10:22 pm

1 stop10h 12m

San Juan Luis Munoz Marin Intl

Thu 1/29

2:05 am-11:07 am

1 stop13h 02m

$363

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 1/12

10:15 pm-2:59 pm

1 stop12h 44m

San Juan Luis Munoz Marin Intl

Fri 1/16

3:54 pm-11:32 pm

1 stop11h 38m

$419

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 2/27

10:22 pm-11:41 am

1 stop9h 19m

San Juan Luis Munoz Marin Intl

Sat 3/7

7:30 am-9:17 pm

1 stop17h 47m

$419

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 1/19

12:40 am-4:50 pm

2 stops12h 10m

San Juan Luis Munoz Marin Intl

Fri 1/30

3:55 pm-10:15 pm

1 stop10h 20m

$419

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Mon 1/12

7:00 am-9:00 pm

1 stop10h 00m

San Juan Luis Munoz Marin Intl

Fri 1/16

8:10 am-6:56 pm

2 stops14h 46m

$419

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sun 1/25

7:37 pm-1:05 pm

2 stops13h 28m

San Juan Luis Munoz Marin Intl

Tue 2/3

2:15 pm-10:15 pm

1 stop12h 00m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

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

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

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

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

What is the cheapest time of day to fly from WA to CB?

Find hourly flight availability from Washington to Caribbean. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 21, 2025.

When flying from State of Washington to Caribbean, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 13% versus a flight in the morning.

What is the cheapest day to fly from State of Washington to Caribbean?

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

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

Related info for your journey

Find useful and relevant information for your journey from Washington to Caribbean. 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?

    Airlines like United Airlines, Delta, and American Airlines fly from State of Washington to Caribbean in about 10h 26m. The time it takes to get you to your destination can typically vary by up to 3h 28m. There are 3723 mi between State of Washington and Caribbean. 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 one-way?

    One-way options have recently been found by users for as low as $119 on Alaska Airlines. Other airlines that offer cheap prices include American Airlines from $166 and JetBlue from $170 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Washington to Caribbean 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?

    Currently, April is the cheapest month in which you can book a flight from State of Washington to Caribbean (average of $159). Flying from State of Washington to Caribbean 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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Alternative routes for Washington to Caribbean

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Washington to Caribbean

Discover the top 10 airlines that operate flights from Washington 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 December 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$677FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$175Average$476FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$208Average$422FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$270Average$671FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$327Average$567FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$340Average$674FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$363Average$721FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$494Average$742FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$544Average$828FlexibilityNo cancel feeOn-time83%
Air CanadaCheapest$632Average$923FlexibilityNo cancel feeOn-time67%

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