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$129+ Cheap flights from Washington, D.C. (WAS) 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SJO
Jun 19 — Jun 261
Fri 6/19
Fri 6/26
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Costa Rica

Cheapest flights from Washington, D.C. to Costa Rica
Explore the most affordable flight options available from Washington, D.C. to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.

This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:00 am
DCA
-
LIR
1 stop8h 10m
United Airlines
Sat 9/51:20 pm
LIR
-
DCA
1 stop8h 39m
United Airlines
Deal found 5/19$292
This United Airlines deal was found by Cheapflights users on 5/20. 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 6/36:30 am
IAD
-
LIR
1 stop7h 40m
United Airlines
Fri 6/54:30 pm
LIR
-
IAD
1 stop12h 52m
United Airlines
Deal found 5/20$292
This American Airlines deal was found by Cheapflights users on 5/18. 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.
Sun 8/167:20 pm
BWI
-
LIR
2 stops19h 51m
American Airlines
Fri 8/212:11 pm
LIR
-
BWI
2 stops19h 55m
American Airlines
Deal found 5/18$297
This American Airlines deal was found by Cheapflights users on 5/16. 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 8/278:19 pm
BWI
-
LIR
2 stops18h 52m
American Airlines
Wed 9/212:35 pm
LIR
-
BWI
2 stops30h 04m
American Airlines
Deal found 5/16$310
This Avianca deal was found by Cheapflights users on 5/17. 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 7/77:35 pm
IAD
-
SJO
2 stops14h 55m
Avianca
Thu 7/163:10 pm
SJO
-
IAD
2 stops9h 05m
Avianca
Deal found 5/17$323
This United Airlines deal was found by Cheapflights users on 5/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:29 pm
IAD
-
LIR
1 stop15h 41m
United Airlines
Sat 9/51:20 pm
LIR
-
IAD
1 stop8h 35m
United Airlines
Deal found 5/19$325
This KAYAK deal was found by Cheapflights users on 5/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:09 am
BWI
-
LIR
1 stop8h 52m
JetBlue
Thu 9/32:06 pm
LIR
-
BWI
1 stop7h 21m
JetBlue
Deal found 5/19$337
This Copa Airlines deal was found by Cheapflights users on 5/15. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:40 pm
BWI
-
SJO
1 stop16h 29m
Copa Airlines
Tue 6/26:19 pm
SJO
-
BWI
1 stop19h 11m
Copa Airlines
Deal found 5/15$344
This Copa Airlines deal was found by Cheapflights users on 5/18. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/64:38 pm
IAD
-
SJO
1 stop17h 43m
Copa Airlines
Tue 6/94:10 am
SJO
-
IAD
1 stop22h 11m
Copa Airlines
Deal found 5/18$344
This United Airlines deal was found by Cheapflights users on 5/20. 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 6/36:00 am
DCA
-
LIR
1 stop8h 10m
United Airlines
Fri 6/511:10 am
LIR
-
DCA
1 stop9h 05m
United Airlines
Deal found 5/20$345
This Booking.com deal was found by Cheapflights users on 5/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/14:46 pm
BWI
-
SJO
1 stop23h 18m
Copa Airlines
Fri 6/54:10 am
SJO
-
BWI
1 stop9h 20m
Copa Airlines
Deal found 5/16$346
This American Airlines deal was found by Cheapflights users on 5/19. 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.
Tue 5/267:59 pm
BWI
-
LIR
2 stops17h 23m
American Airlines
Tue 6/22:19 pm
LIR
-
BWI
2 stops20h 46m
American Airlines
Deal found 5/19$347

Find flight deals from Washington, D.C. to Costa Rica

Keep the following information in mind while searching for Washington, D.C. to Costa Rica flight deals. Data was last updated May 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$292
(United Airlines)

One-way from

$129
(KAYAK)

Popular in

December

Cheapest in

October

Average price

$360

Good round-trip deal

$425 or less

Good one-way deal

$153 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-San José Juan Santamaria Intl flights.
Search Deals
From Washington, D.C. (WAS) to Costa Rica
Search Deals
One-way flight from Washington, D.C. (WAS) to Costa Rica
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Costa Rica.
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Costa Rica.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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 May 20, 2026.
Use the filters below to find and compare flights from Washington, D.C. to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Fri 6/5

2:21 am-9:06 am

1 stop8h 45m

San José Juan Santamaria Intl

Tue 6/9

4:10 am-4:21 am

1 stop22h 11m

$344

BaltimoreSan José

BWI - SJO

BWISJO

Baltimore/Washington

Thu 9/10

6:00 am-11:54 am

1 stop7h 54m

San José Juan Santamaria Intl

Thu 9/17

1:25 pm-12:16 am

1 stop8h 51m

$356

Washington, D.C.San José

DCA - SJO

DCASJO

Washington, D.C. Reagan-National

Mon 10/12

6:00 am-11:38 am

1 stop7h 38m

San José Juan Santamaria Intl

Sat 10/24

1:25 pm-11:58 pm

1 stop8h 33m

$356

Washington, D.C.San José

DCA - SJO

DCASJO

Washington, D.C. Reagan-National

Tue 6/2

12:59 pm-7:37 pm

1 stop8h 38m

San José Juan Santamaria Intl

Thu 6/11

11:13 am-10:15 pm

1 stop9h 02m

$356

Washington, D.C.San José

DCA - SJO

DCASJO

Washington, D.C. Reagan-National

Tue 10/6

6:00 am-11:58 am

1 stop7h 58m

San José Juan Santamaria Intl

Tue 10/20

1:23 pm-11:18 pm

1 stop7h 55m

$356

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 6/4

2:21 am-9:06 am

1 stop8h 45m

San José Juan Santamaria Intl

Thu 6/11

2:59 pm-12:33 am

1 stop7h 34m

$358

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sat 5/30

4:38 pm-7:09 am

1 stop16h 31m

San José Juan Santamaria Intl

Sat 6/6

10:05 am-12:33 am

1 stop12h 28m

$358

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sat 6/6

4:38 pm-9:06 am

1 stop18h 28m

San José Juan Santamaria Intl

Sat 6/13

8:47 am-4:21 am

1 stop17h 34m

$358

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Mon 6/1

4:38 pm-11:06 am

1 stop20h 28m

San José Juan Santamaria Intl

Tue 6/16

2:59 pm-4:21 am

1 stop11h 22m

$373

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 9/13

6:15 am-11:38 am

1 stop7h 23m

San José Juan Santamaria Intl

Sun 9/20

1:25 pm-12:30 am

1 stop9h 05m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/20

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

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Washington, D.C. 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, D.C. to Costa Rica

What is the cheapest month to book a flight from Washington, D.C. to Costa Rica?

Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Costa Rica (average of $102). Flying from Washington, D.C. to Costa Rica in July is currently the most expensive (average of $895). 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 WAS to CR?

Find hourly flight availability from Washington, D.C. 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 May 20, 2026.

When flying from Washington, D.C. 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.

How far ahead should I book a flight from Washington, D.C. to Costa Rica?

The price you pay for your flight from Washington, D.C. to Costa Rica may vary depending on when you book. For the best chance of a lower fare, look to book 19 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated May 20, 2026.
Read reviews from past customers who have flown Copa Airlines,United Airlines, andJetBlue from Washington, D.C. to Costa Rica. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.5
Good
1,579 reviews

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.1

Food

6.8

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
Copa Airlines
7.5
Good
1,579 reviews
Copa Airlines
7.5
Good
1,579 reviews

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.1

Food

6.8

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
United Airlines
7.4
Good
9,745 reviews
Copa Airlines
7.5
Good
1,579 reviews

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.1

Food

6.8

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
JetBlue
7.2
Good
2,982 reviews
Copa Airlines
7.5
Good
1,579 reviews

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.1

Food

6.8

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
American Airlines
7.1
Good
11,644 reviews
Copa Airlines
7.5
Good
1,579 reviews

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.1

Food

6.8

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.
Avianca
6.5
Okay
2,529 reviews
Copa Airlines
7.5
Good
1,579 reviews

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.1

Food

6.8

Overall

7.5

Reviews

1 / 20
2.0
Mediocre

Katerine,Mar 2026

LAX - PTY

Really i was expecting be more friendly with family’s, more when you travel with a infant. We expected like a priority to boarding or be friendly with the spots on the aeroplane.

Related info for your journey

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

    A quick flight from Washington, D.C. to Costa Rica can take about 7h 38m. Copa Airlines provides one of the quickest options available for as low as $356. Washington, D.C. and Costa Rica are separated by a distance of 2041 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Washington, D.C. to Costa Rica one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $101. Users have also found prices from $107 and $109 on Avianca and Copa Airlines, respectively.

  • What are the most popular routes from Washington, D.C. to Costa Rica?

    The most popular route from Washington, D.C. to Costa Rica is Washington, D.C. Dulles Intl - San José Juan Santamaria Intl. You may also consider Washington, D.C. Reagan-National - San José Juan Santamaria Intl or Baltimore/Washington - San José Juan Santamaria Intl.

  • What are the cheapest flights from Washington, D.C. to Costa Rica?

    Looking for the cheapest flight from Washington, D.C. to Costa Rica? While on average our users pay $482, our data indicates the cheapest price to be $153. The most popular route (Washington, D.C. Dulles Intl - San José Juan Santamaria Intl), is priced around $344.

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

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

  • How can I find direct flights from Washington, D.C. 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, D.C. to Costa Rica.

  • Can I find deals for business class flights from Washington, D.C. to Costa Rica?

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

    Currently, May is the cheapest month in which you can book a flight from Washington, D.C. to Costa Rica (average of $102). Flying from Washington, D.C. to Costa Rica in July is currently the most expensive (average of $895). 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

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Top 9 airlines flying from Washington, D.C. to Costa Rica

Discover the top 9 airlines that operate flights from Washington, D.C. 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 May 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Volaris El SalvadorCheapest$102Average$333FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$132Average$356FlexibilityNo cancel feeOn-time71%
DeltaCheapest$137Average$468FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$170Average$368FlexibilityNo cancel feeOn-time70%
Spirit AirlinesCheapest$179Average$355FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$235Average$453FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$235Average$439FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$240Average$490FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$256Average$665FlexibilityNo cancel feeOn-time63%

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