HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Costa Rica

$122+ 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 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington to Costa Rica with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 October 23, 2025.

This United Airlines deal was found by Cheapflights users on 10/22. 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 12/511:59 pmPDX - SJO
1 stop10h 57mUnited Airlines
Tue 12/168:45 amSJO - PDX
2 stops16h 07mUnited Airlines
Deal found 10/22$276
This American Airlines deal was found by Cheapflights users on 10/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/611:59 pmPDX - SJO
1 stop21h 00mAmerican Airlines
Tue 12/92:56 pmSJO - PDX
1 stop10h 27mAmerican Airlines
Deal found 10/21$277
This American Airlines deal was found by Cheapflights users on 10/23. 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 12/65:30 amPDX - SJO
2 stops14h 58mAmerican Airlines
Sat 12/137:00 amSJO - PDX
1 stop18h 52mAmerican Airlines
Deal found 10/23$280
This American Airlines deal was found by Cheapflights users on 10/22. 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 11/112:45 amPDX - SJO
1 stop21h 11mAmerican Airlines
Tue 11/256:22 amSJO - PDX
1 stop20h 28mAmerican Airlines
Deal found 10/22$283
This Delta deal was found by Cheapflights users on 10/22. 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.
Thu 10/3011:10 amPDX - SJO
2 stops23h 48mDelta
Wed 11/122:31 pmSJO - PDX
2 stops21h 09mDelta
Deal found 10/22$306
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/27:00 amPDX - SJO
1 stop11h 39mUnited Airlines
Tue 11/252:20 pmSJO - PDX
1 stop10h 25mUnited Airlines
Deal found 10/22$307
This United Airlines deal was found by Cheapflights users on 10/23. 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 12/511:59 pmPDX - SJO
1 stop10h 57mUnited Airlines
Sun 12/149:40 amSJO - PDX
1 stop15h 12mUnited Airlines
Deal found 10/23$308
This Trip.com deal was found by Cheapflights users on 10/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:18 amPDX - SJO
1 stop30h 12mMultiple Airlines
Mon 12/87:45 amSJO - PDX
1 stop15h 05mMultiple Airlines
Deal found 10/20$312
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Thu 11/1312:33 pmPDX - SJO
1 stop10h 05mAlaska Airlines
Mon 11/171:55 amSJO - PDX
1 stop13h 55mAlaska Airlines
Deal found 10/22$316
This Delta deal was found by Cheapflights users on 10/23. 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 12/74:35 pmGEG - SJO
2 stops27h 45mDelta
Thu 12/257:00 amSJO - GEG
2 stops18h 16mDelta
Deal found 10/23$320
This Delta deal was found by Cheapflights users on 10/23. 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 11/166:10 amPDX - SJO
1 stop13h 57mDelta
Thu 11/202:31 pmSJO - PDX
2 stops20h 33mDelta
Deal found 10/23$320
This United Airlines deal was found by Cheapflights users on 10/22. 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 11/712:45 pmGEG - SJO
1 stop17h 47mUnited Airlines
Thu 11/139:40 amSJO - GEG
1 stop15h 49mUnited Airlines
Deal found 10/22$327

Cheap 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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$276
(United Airlines)

One-way from

$122
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$512

Good round-trip deal

$1,397 or less
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. 11% potential increase in price ($80 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 October 2025
Search Deals
Price to beat on a round-trip flight from Washington to Costa Rica.
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 October 23, 2025.
Use the filters below to find and compare flights from Washington to Costa Rica that are best for you.

Fly from

Washington

Fly to

Costa Rica

Route

Depart

Return

Price

PortlandSan José

PDX - SJO

PDXSJO

Portland

Fri 12/5

11:59 pm-12:56 pm

1 stop10h 57m

San José Juan Santamaria Intl

Tue 12/16

8:45 am-10:52 pm

2 stops16h 07m

$276

PascoSan José

PSC - SJO

PSCSJO

Pasco Tri Cities

Wed 2/4

6:00 am-8:32 am

1 stop24h 32m

San José Juan Santamaria Intl

Thu 2/12

9:40 am-9:17 pm

1 stop13h 37m

$304

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 11/11

7:38 pm-8:32 am

1 stop10h 54m

San José Juan Santamaria Intl

Mon 11/17

8:45 am-10:45 pm

1 stop16h 00m

$307

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 11/7

12:45 pm-8:32 am

1 stop17h 47m

San José Juan Santamaria Intl

Thu 11/13

9:40 am-11:29 pm

1 stop15h 49m

$327

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sun 11/2

7:00 am-8:39 pm

1 stop11h 39m

San José Juan Santamaria Intl

Mon 11/24

12:35 pm-12:26 am

2 stops13h 51m

$330

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sun 12/7

4:35 pm-10:20 pm

2 stops27h 45m

San José Juan Santamaria Intl

Tue 12/23

7:00 am-9:37 pm

1 stop16h 37m

$341

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 1/19

12:55 am-12:55 pm

1 stop10h 00m

Liberia

Thu 1/29

3:55 pm-11:05 am

1 stop21h 10m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 2/2

7:51 pm-1:10 pm

2 stops15h 19m

Liberia

Tue 2/10

8:35 am-10:53 pm

1 stop16h 18m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 3/9

9:45 pm-11:50 am

1 stop13h 05m

Liberia

Wed 3/11

1:15 pm-8:37 am

2 stops20h 22m

$349

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sat 1/24

6:00 am-11:43 pm

1 stop15h 43m

San José Juan Santamaria Intl

Wed 1/28

6:00 am-6:49 pm

2 stops14h 49m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 60 results
1
2
3
...
6

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 $502). 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 October 23, 2025.

A simple way to save on the total cost of your ticket is to fly from State of Washington to Costa Rica in the afternoon. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the morning.

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

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

Travelers seeking maximum savings on their State of Washington to Costa Rica flight should consider departing on Monday at noon when fares are most often at their lowest. Friday 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 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 10h 57m. United Airlines provides one of the quickest options available for as low as $276. 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 $122. American Airlines flights start at $122 while deals on Delta start at $157 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 $502). 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
Newark to San José flights
John F Kennedy Intl to Panama City flights
Los Angeles to Guatemala City flights
Hobby to San Salvador flights
John F Kennedy Intl to Guatemala City flights
John F Kennedy Intl to San Salvador flights
Dulles Intl to San Salvador flights
George Bush Intcntl to San Salvador flights
Newark to Panama City flights
Los Angeles to San José flights
Newark to Guatemala City flights
O'Hare Intl to San José flights
Dallas/Fort Worth to San Salvador flights
LaGuardia to San José flights
Dulles Intl to Panama City flights
Dulles Intl to San José flights
Ontario to San Salvador flights
Newark to Liberia flights
Miami to Managua flights
O'Hare Intl to Panama City flights
Miami to Panama City flights
Hobby to San José flights
John F Kennedy Intl to Liberia flights
Dallas/Fort Worth to San José flights
San Francisco to San José flights
Dulles Intl to Guatemala City flights
Atlanta to San José flights
Miami to San Salvador flights
Atlanta to Panama City flights
Hobby to Panama City flights
Los Angeles to Panama City flights
LaGuardia to Panama City flights
Baltimore to San Salvador flights
Los Angeles to Liberia flights
Denver to San José flights
Reagan-National to San Salvador flights
George Bush Intcntl to San José flights
Baltimore to San José flights
Boston to San José flights
O'Hare Intl to Guatemala City flights
Baltimore to Panama City flights
LaGuardia to Guatemala City flights
LaGuardia to Liberia flights
Seattle to San José flights
Reagan-National to San José flights
Denver to Liberia flights
Boston to Liberia flights
Hobby to San Pedro Sula 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$152Average$217FlexibilityNo cancel feeOn-time71%
DeltaCheapest$280Average$695FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$311Average$572FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$315Average$718FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$328Average$697FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$423Average$785FlexibilityNo cancel feeOn-time70%
SouthwestCheapest$462Average$675FlexibilityNo cancel feeOn-time63%
AeromexicoCheapest$782Average$982FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.