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$132+ 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 2/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJU
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap flight deals from Washington to Caribbean

Keep the following information in mind while searching for Washington to Caribbean flight deals. Data was last updated January 15, 2026.

Round-trip from

$379
(United Airlines)

One-way from

$132
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$472
From Washington to Caribbean
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One-way flight from Washington to Caribbean
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Highest demand for flights based on searches. 3% potential increase in price ($22 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

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 January 15, 2026.

This Lucky2Go deal was found by Cheapflights users on 1/15. 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 Lucky2Go is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:00 pm
SEA
-
SJU
2 stops34h 25m
Frontier
Sun 3/86:30 am
SJU
-
SEA
2 stops31h 49m
Frontier
Deal found 1/15$376
This United Airlines deal was found by Cheapflights users on 1/15. 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 1/15$379
This American Airlines deal was found by Cheapflights users on 1/13. 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 2/185:37 am
SEA
-
SJU
1 stop13h 54m
American Airlines
Wed 3/42:23 pm
SJU
-
SEA
2 stops12h 44m
American Airlines
Deal found 1/13$384
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/2712:00 pm
SEA
-
SJU
2 stops33h 05m
Multiple Airlines
Thu 3/55:08 pm
SJU
-
SEA
1 stop20h 57m
Multiple Airlines
Deal found 1/14$391
This CheapOair deal was found by Cheapflights users on 1/14. 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 1/14$397
This Southwest deal was found by Cheapflights users on 1/14. 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.
Mon 3/25:50 am
PDX
-
SJU
2 stops14h 50m
Southwest
Thu 3/52:05 pm
SJU
-
PDX
2 stops12h 30m
Southwest
Deal found 1/14$397
This Kiwi.com deal was found by Cheapflights users on 1/13. 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 4/1112:42 pm
SEA
-
SJU
2 stops16h 14m
Multiple Airlines
Sat 4/182:01 pm
SJU
-
SEA
1 stop30h 14m
Multiple Airlines
Deal found 1/13$409
This American Airlines deal was found by Cheapflights users on 1/14. 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 am
SEA
-
SJU
2 stops11h 57m
American Airlines
Tue 3/37:00 am
SJU
-
SEA
2 stops12h 57m
American Airlines
Deal found 1/14$410
This American Airlines deal was found by Cheapflights users on 1/13. 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 2/216:44 am
SEA
-
SJU
1 stop12h 47m
American Airlines
Sat 2/286:00 am
SJU
-
SEA
1 stop19h 57m
American Airlines
Deal found 1/13$415
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 1/14$416
This United Airlines deal was found by Cheapflights users on 1/15. 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 6/110:45 pm
SEA
-
SJU
1 stop10h 19m
United Airlines
Mon 6/152:05 am
SJU
-
SEA
2 stops13h 19m
United Airlines
Deal found 1/15$419
This Southwest deal was found by Cheapflights users on 1/15. 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.
Mon 3/911:55 pm
SEA
-
SJU
2 stops11h 50m
Southwest
Fri 3/131:05 pm
SJU
-
SEA
2 stops14h 25m
Southwest
Deal found 1/15$421

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 January 15, 2026.
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

Sat 2/28

11:57 pm-11:31 pm

1 stop19h 34m

San Juan Luis Munoz Marin Intl

Sat 5/2

6:00 am-9:23 pm

1 stop18h 23m

$384

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 4/28

5:00 am-8:34 pm

2 stops12h 34m

San Juan Luis Munoz Marin Intl

Mon 5/4

1:00 am-11:39 am

2 stops13h 39m

$384

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Tue 4/28

10:47 pm-1:49 pm

1 stop12h 02m

San Juan Luis Munoz Marin Intl

Tue 5/5

11:43 am-10:26 pm

2 stops13h 43m

$384

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Mon 5/4

5:07 am-5:38 pm

1 stop9h 31m

San Juan Luis Munoz Marin Intl

Thu 5/7

7:40 am-3:53 pm

1 stop11h 13m

$384

SeattleSan Juan

SEA - SJU

SEASJU

Seattle/Tacoma Intl

Fri 5/1

11:50 pm-2:44 pm

1 stop11h 54m

San Juan Luis Munoz Marin Intl

Tue 5/5

1:40 pm-10:59 pm

1 stop12h 19m

$384

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 5/8

3:00 pm-8:55 am

2 stops14h 55m

San Juan Luis Munoz Marin Intl

Fri 5/15

10:00 am-8:10 pm

2 stops13h 10m

$440

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 3/31

12:30 am-2:15 pm

1 stop10h 45m

San Juan Luis Munoz Marin Intl

Wed 4/15

6:15 am-5:03 pm

2 stops13h 48m

$440

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Tue 3/10

11:59 pm-5:03 pm

2 stops14h 04m

San Juan Luis Munoz Marin Intl

Tue 3/17

6:00 am-11:44 pm

1 stop20h 44m

$440

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Sat 2/21

1:18 pm-6:11 am

2 stops12h 53m

San Juan Luis Munoz Marin Intl

Wed 2/25

8:30 am-3:27 pm

1 stop10h 57m

$440

PortlandSan Juan

PDX - SJU

PDXSJU

Portland

Fri 5/8

11:59 pm-2:12 pm

1 stop11h 13m

San Juan Luis Munoz Marin Intl

Fri 5/15

11:59 pm-12:58 pm

1 stop15h 59m

$440

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

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.

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 American Airlines, United Airlines, and Delta fly from State of Washington to Caribbean in about 12h 34m. The time it takes to get you to your destination can typically vary by up to 7h. 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$158Average$676FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$175Average$344FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$208Average$383FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$268Average$651FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$282Average$555FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$340Average$677FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$363Average$693FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$383Average$827FlexibilityNo cancel feeOn-time67%
SouthwestCheapest$494Average$743FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$544Average$828FlexibilityNo cancel feeOn-time83%

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