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$120+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SJO
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
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 July 18, 2026.

This American Airlines deal was found by Cheapflights users on 7/13. 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.
Thu 10/17:31 pm
BWI
-
LIR
2 stops19h 47m
American Airlines
Tue 10/62:45 pm
LIR
-
BWI
2 stops25h 39m
American Airlines
Deal found 7/13$281
This Delta deal was found by Cheapflights users on 7/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:05 am
BWI
-
SJO
1 stop6h 49m
Delta
Mon 10/51:19 pm
SJO
-
BWI
1 stop8h 07m
Delta
Deal found 7/13$282
This American Airlines deal was found by Cheapflights users on 7/16. 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.
Tue 8/256:00 am
BWI
-
LIR
1 stop7h 29m
American Airlines
Tue 9/152:47 pm
LIR
-
BWI
1 stop23h 54m
American Airlines
Deal found 7/16$284
This American Airlines deal was found by Cheapflights users on 7/13. 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.
Thu 8/276:00 am
BWI
-
SJO
1 stop8h 26m
American Airlines
Thu 9/31:07 pm
SJO
-
BWI
2 stops20h 02m
American Airlines
Deal found 7/13$293
This American Airlines deal was found by Cheapflights users on 7/14. 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.
Sat 8/296:00 am
BWI
-
LIR
1 stop7h 04m
American Airlines
Thu 9/32:45 pm
LIR
-
BWI
1 stop17h 02m
American Airlines
Deal found 7/14$296
This American Airlines deal was found by Cheapflights users on 7/13. 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.
Fri 8/216:35 pm
BWI
-
SJO
2 stops19h 51m
American Airlines
Mon 8/311:29 pm
SJO
-
BWI
2 stops23h 33m
American Airlines
Deal found 7/13$296
This American Airlines deal was found by Cheapflights users on 7/13. 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.
Thu 9/107:09 pm
BWI
-
SJO
2 stops20h 48m
American Airlines
Thu 9/171:00 pm
SJO
-
BWI
1 stop20h 09m
American Airlines
Deal found 7/13$300
This American Airlines deal was found by Cheapflights users on 7/14. 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.
Fri 9/117:26 am
BWI
-
LIR
1 stop8h 21m
American Airlines
Tue 9/152:47 pm
LIR
-
BWI
2 stops22h 12m
American Airlines
Deal found 7/14$301
This American Airlines deal was found by Cheapflights users on 7/13. 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 8/266:25 pm
BWI
-
SJO
2 stops20h 01m
American Airlines
Mon 8/311:29 pm
SJO
-
BWI
2 stops23h 33m
American Airlines
Deal found 7/13$301
This American Airlines deal was found by Cheapflights users on 7/14. 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.
Fri 9/117:26 am
BWI
-
LIR
1 stop8h 21m
American Airlines
Mon 9/142:47 pm
LIR
-
BWI
1 stop23h 54m
American Airlines
Deal found 7/14$304
This American Airlines deal was found by Cheapflights users on 7/13. 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 11/115:04 am
BWI
-
SJO
2 stops16h 51m
American Airlines
Sun 11/153:11 pm
SJO
-
BWI
1 stop19h 01m
American Airlines
Deal found 7/13$306
This American Airlines deal was found by Cheapflights users on 7/14. 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.
Fri 8/287:24 pm
BWI
-
SJO
2 stops20h 28m
American Airlines
Tue 9/11:03 pm
SJO
-
BWI
2 stops20h 06m
American Airlines
Deal found 7/14$307

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 July 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$281
(American Airlines)

One-way from

$120
(Delta)

Popular in

December

Cheapest in

October

Average price

$499

Good round-trip deal

$554 or less

Good one-way deal

$375 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. 11% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 18, 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.Liberia

DCA - LIR

DCALIR

Washington, D.C. Reagan-National

Sun 10/25

6:00 am-12:10 pm

1 stop8h 10m

Liberia

Sun 11/1

5:20 pm-7:19 am

1 stop12h 59m

$356

Washington, D.C.Liberia

DCA - LIR

DCALIR

Washington, D.C. Reagan-National

Wed 11/4

6:00 am-1:10 pm

1 stop8h 10m

Liberia

Wed 11/11

5:20 pm-12:19 pm

1 stop17h 59m

$360

Washington, D.C.Liberia

DCA - LIR

DCALIR

Washington, D.C. Reagan-National

Tue 10/27

6:00 am-12:10 pm

1 stop8h 10m

Liberia

Tue 11/3

5:20 pm-11:53 am

1 stop17h 33m

$360

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Thu 10/1

10:18 pm-12:10 pm

1 stop15h 52m

Liberia

Sat 10/31

1:20 pm-12:32 am

1 stop9h 12m

$375

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Thu 7/23

6:30 am-2:25 pm

1 stop9h 55m

Liberia

Wed 7/29

4:30 pm-7:22 am

1 stop12h 52m

$390

Washington, D.C.Liberia

DCA - LIR

DCALIR

Washington, D.C. Reagan-National

Wed 10/28

6:00 am-1:00 pm

1 stop9h 00m

Liberia

Mon 11/2

3:05 pm-11:34 pm

1 stop7h 29m

$402

Washington, D.C.Liberia

DCA - LIR

DCALIR

Washington, D.C. Reagan-National

Sat 11/7

10:58 am-6:37 pm

1 stop8h 39m

Liberia

Wed 11/11

5:20 pm-7:19 am

1 stop12h 59m

$402

BaltimoreLiberia

BWI - LIR

BWILIR

Baltimore/Washington

Mon 9/28

6:00 am-12:00 pm

1 stop8h 00m

Liberia

Wed 10/7

1:25 pm-10:37 pm

1 stop7h 12m

$409

BaltimoreSan José

BWI - SJO

BWISJO

Baltimore/Washington

Wed 9/23

9:30 am-6:40 pm

2 stops11h 10m

San José Juan Santamaria Intl

Sun 9/27

12:35 pm-12:20 am

1 stop9h 45m

$424

Washington, D.C.San José

DCA - SJO

DCASJO

Washington, D.C. Reagan-National

Wed 11/4

8:55 pm-12:20 pm

2 stops16h 25m

San José Juan Santamaria Intl

Wed 11/11

9:00 am-10:00 pm

2 stops12h 00m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

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, September is the cheapest month in which you can book a flight from Washington, D.C. to Costa Rica (average of $340). Flying from Washington, D.C. to Costa Rica in December is currently the most expensive (average of $576). 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 July 18, 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 2 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 July 18, 2026.
Read reviews from past customers who have flown Copa Airlines,United Airlines, andAmerican Airlines 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
7.6
Good
1,564 reviews

Overall

7.6

Entertainment

6.8

Crew

8.1

Food

6.9

Comfort

7.4

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2026

BOS - PTY

Airline was delayed 1 hour, that made my layover flight be missed, gave wrong information about gates, they closed the gates in my face, rebooked me, and had business class, and rebooked me not business class
Copa Airlines
7.6
Good
1,564 reviews
Copa Airlines
7.6
Good
1,564 reviews

Overall

7.6

Entertainment

6.8

Crew

8.1

Food

6.9

Comfort

7.4

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2026

BOS - PTY

Airline was delayed 1 hour, that made my layover flight be missed, gave wrong information about gates, they closed the gates in my face, rebooked me, and had business class, and rebooked me not business class
United Airlines
7.4
Good
10,006 reviews
Copa Airlines
7.6
Good
1,564 reviews

Overall

7.6

Entertainment

6.8

Crew

8.1

Food

6.9

Comfort

7.4

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2026

BOS - PTY

Airline was delayed 1 hour, that made my layover flight be missed, gave wrong information about gates, they closed the gates in my face, rebooked me, and had business class, and rebooked me not business class
American Airlines
7.1
Good
11,829 reviews
Copa Airlines
7.6
Good
1,564 reviews

Overall

7.6

Entertainment

6.8

Crew

8.1

Food

6.9

Comfort

7.4

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2026

BOS - PTY

Airline was delayed 1 hour, that made my layover flight be missed, gave wrong information about gates, they closed the gates in my face, rebooked me, and had business class, and rebooked me not business class
JetBlue
7.1
Good
3,011 reviews
Copa Airlines
7.6
Good
1,564 reviews

Overall

7.6

Entertainment

6.8

Crew

8.1

Food

6.9

Comfort

7.4

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2026

BOS - PTY

Airline was delayed 1 hour, that made my layover flight be missed, gave wrong information about gates, they closed the gates in my face, rebooked me, and had business class, and rebooked me not business class
Avianca
6.5
Okay
2,526 reviews
Copa Airlines
7.6
Good
1,564 reviews

Overall

7.6

Entertainment

6.8

Crew

8.1

Food

6.9

Comfort

7.4

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2026

BOS - PTY

Airline was delayed 1 hour, that made my layover flight be missed, gave wrong information about gates, they closed the gates in my face, rebooked me, and had business class, and rebooked me not business class

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 8h. United Airlines provides one of the quickest options available for as low as $409. Washington, D.C. and Costa Rica are separated by a distance of 2048 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 Baltimore/Washington - San José Juan Santamaria Intl or Washington, D.C. Reagan-National - 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 $1,421, our data indicates the cheapest price to be $351. The most popular route (Washington, D.C. Dulles Intl - San José Juan Santamaria Intl), is priced around $346.

  • 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, September is the cheapest month in which you can book a flight from Washington, D.C. to Costa Rica (average of $340). Flying from Washington, D.C. to Costa Rica in December is currently the most expensive (average of $576). 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 7 airlines flying from Washington, D.C. to Costa Rica

Discover the top 7 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 July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$137Average$485FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$224Average$459FlexibilityNo cancel feeOn-time69%
AviancaCheapest$225Average$373FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$228Average$395FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$235Average$484FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$240Average$520FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$262Average$676FlexibilityNo cancel feeOn-time63%

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