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Costa Rica

$168+ Cheap flights from Washington to Costa Rica

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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
Apr 22 — Apr 291
Wed 4/22
Wed 4/29
1 adult, Economy
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Cheap flight deals from Washington to Costa Rica

Cheapest flights from Washington to Costa Rica
Explore the most affordable flight options available from Washington to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.

This Alaska Airlines deal was found by Cheapflights users on 3/17. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:30 am
PDX
-
SJO
1 stop11h 27m
Alaska Airlines
Sat 11/71:45 am
SJO
-
PDX
1 stop13h 41m
Alaska Airlines
Deal found 3/17$378
This United Airlines deal was found by Cheapflights users on 3/20. 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.
Mon 4/277:14 pm
PDX
-
SJO
2 stops13h 57m
United Airlines
Thu 5/77:55 am
SJO
-
PDX
1 stop12h 43m
United Airlines
Deal found 3/20$383
This Alaska Airlines deal was found by Cheapflights users on 3/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:30 pm
PDX
-
SJO
1 stop24h 27m
Alaska Airlines
Mon 11/91:45 am
SJO
-
PDX
1 stop16h 42m
Alaska Airlines
Deal found 3/19$386
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Mon 4/2010:28 pm
PDX
-
SJO
1 stop11h 39m
American Airlines
Tue 4/282:08 pm
SJO
-
PDX
1 stop21h 53m
American Airlines
Deal found 3/19$388
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:36 pm
PDX
-
SJO
1 stop28h 57m
Alaska Airlines
Thu 6/111:03 am
SJO
-
PDX
1 stop23h 56m
Alaska Airlines
Deal found 3/20$393
This Avianca deal was found by Cheapflights users on 3/17. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:00 am
PDX
-
SJO
2 stops15h 15m
Multiple Airlines
Sat 8/295:45 am
SJO
-
PDX
2 stops15h 46m
Multiple Airlines
Deal found 3/17$394
This Avianca deal was found by Cheapflights users on 3/17. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/37:00 am
PDX
-
SJO
2 stops14h 15m
Multiple Airlines
Sun 11/85:00 am
SJO
-
PDX
2 stops13h 27m
Multiple Airlines
Deal found 3/17$396
This American Airlines deal was found by Cheapflights users on 3/17. 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.
Fri 5/111:40 pm
PDX
-
SJO
1 stop20h 56m
American Airlines
Fri 5/811:35 pm
SJO
-
PDX
1 stop24h 15m
American Airlines
Deal found 3/17$397
This United Airlines deal was found by Cheapflights users on 3/18. 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 4/177:14 pm
PDX
-
SJO
2 stops13h 57m
United Airlines
Fri 4/248:45 am
SJO
-
PDX
1 stop10h 22m
United Airlines
Deal found 3/18$398
This United Airlines deal was found by Cheapflights users on 3/21. 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.
Tue 5/512:25 pm
GEG
-
SJO
1 stop17h 50m
United Airlines
Tue 5/128:45 am
SJO
-
GEG
1 stop13h 55m
United Airlines
Deal found 3/21$400
This Justfly.com deal was found by Cheapflights users on 3/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:10 am
PDX
-
SJO
2 stops15h 05m
Multiple Airlines
Sat 5/95:45 am
SJO
-
PDX
2 stops15h 50m
Multiple Airlines
Deal found 3/21$400
This Justfly.com deal was found by Cheapflights users on 3/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:30 am
PDX
-
SJO
2 stops12h 10m
Multiple Airlines
Thu 8/275:45 am
SJO
-
PDX
1 stop15h 46m
Multiple Airlines
Deal found 3/20$402

Find flight deals from Washington to Costa Rica

Keep the following information in mind while searching for Washington to Costa Rica flight deals. Data was last updated March 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$378
(American Airlines)

One-way from

$168
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$709
Provider with most accurate pricing for Seattle/Tacoma Intl-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San José Juan Santamaria Intl flights.
Search Deals
From Washington to Costa Rica
Search Deals
One-way flight from Washington to Costa Rica
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington to Costa Rica 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 March 23, 2026.
Use the filters below to find and compare flights from Washington to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSan José

PDX - SJO

PDXSJO

Portland

Wed 5/6

10:45 am-11:45 pm

1 stop12h 00m

San José Juan Santamaria Intl

Tue 5/12

12:35 am-11:33 am

1 stop11h 58m

$378

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Tue 5/5

4:10 pm-12:21 pm

2 stops19h 11m

San José Juan Santamaria Intl

Tue 5/12

8:45 am-9:40 pm

1 stop13h 55m

$400

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sun 5/31

7:00 am-11:33 pm

1 stop15h 33m

San José Juan Santamaria Intl

Thu 6/4

12:53 am-3:29 pm

1 stop15h 36m

$400

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Wed 5/6

6:00 am-11:45 pm

2 stops16h 45m

San José Juan Santamaria Intl

Sun 5/10

12:55 am-9:31 pm

2 stops21h 36m

$405

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 4/28

5:35 pm-7:15 am

1 stop12h 40m

San José Juan Santamaria Intl

Sat 5/9

6:00 am-6:46 pm

2 stops13h 46m

$423

PascoSan José

PSC - SJO

PSCSJO

Pasco Tri Cities

Fri 8/21

2:55 pm-1:58 pm

2 stops22h 03m

San José Juan Santamaria Intl

Fri 9/4

12:57 pm-1:42 pm

2 stops25h 45m

$451

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Thu 4/23

7:14 pm-6:19 pm

1 stop22h 05m

Liberia

Wed 5/13

1:20 pm-10:59 pm

1 stop10h 39m

$478

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 4/9

1:55 pm-10:11 am

1 stop19h 16m

San José Juan Santamaria Intl

Thu 4/16

8:45 am-12:44 am

1 stop16h 59m

$488

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 5/2

1:35 pm-7:15 am

1 stop16h 40m

San José Juan Santamaria Intl

Wed 5/6

7:55 am-7:38 pm

1 stop12h 43m

$488

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 5/5

5:35 pm-7:15 am

1 stop12h 40m

San José Juan Santamaria Intl

Sat 5/9

6:00 am-12:59 am

2 stops19h 59m

$493

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Washington to Costa Rica

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

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

Currently, August is the cheapest month in which you can book a flight from State of Washington to Costa Rica (average of $174). Flying from State of Washington to Costa Rica in July is currently the most expensive (average of $506). 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 CR?

Find hourly flight availability from Washington to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 23, 2026.

When flying from State of Washington to Costa Rica, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

    A quick flight from State of Washington to Costa Rica can take about 12h. Alaska Airlines provides one of the quickest options available for as low as $378. State of Washington and Costa Rica are separated by a distance of 3340 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $156. Alaska Airlines flights start at $168 while deals on Southwest start at $177 one-way.

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

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

  • How can I find direct flights from Washington to Costa Rica?

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

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

    Yes. Cheapflights offers flight deals from Washington to Costa Rica 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 Costa Rica?

    Currently, August is the cheapest month in which you can book a flight from State of Washington to Costa Rica (average of $174). Flying from State of Washington to Costa Rica in July is currently the most expensive (average of $506). 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 Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to San Salvador flights
John F Kennedy Intl to San José flights
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Los Angeles to San José flights
Atlanta to Panama City flights
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Miami to San José flights
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Miami to Managua flights
Dallas/Fort Worth to Panama City flights
Miami to San Salvador flights
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Los Angeles to Panama City flights
George Bush Intcntl to San José flights
Dallas/Fort Worth to San José flights
Hobby to Panama City flights
Ontario to San Salvador flights
George Bush Intcntl to Guatemala City flights
John F Kennedy Intl to San Pedro Sula flights
Ontario to Guatemala City flights
Atlanta to Guatemala City flights
O'Hare Intl to San José flights

Top 8 airlines flying from Washington to Costa Rica

Discover the top 8 airlines that operate flights from Washington to Costa Rica. 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 March 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$152Average$221FlexibilityNo cancel feeOn-time71%
DeltaCheapest$254Average$602FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$287Average$562FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$297Average$566FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$311Average$574FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$362Average$681FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$500Average$650FlexibilityNo cancel feeOn-time63%
AeromexicoCheapest$766Average$981FlexibilityNo cancel feeOn-timeN/A

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