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Dulles Intl

$182+ Cheap flights from Costa Rica to Dulles Intl (IAD)

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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — IAD
May 19 — May 261
Tue 5/19
Tue 5/26
1 adult, Economy
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Cheap flight deals from Costa Rica to Dulles Intl

Cheapest flights from Costa Rica to Dulles Intl
Explore the most affordable flight options available from Costa Rica to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 19, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:35 am
SJO
-
IAD
2 stops26h 37m
Multiple Airlines
Sat 6/67:27 pm
IAD
-
SJO
1 stop14h 52m
Multiple Airlines
Deal found 4/17$304
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Thu 7/162:02 pm
SJO
-
IAD
1 stop8h 08m
American Airlines
Mon 7/208:22 pm
IAD
-
SJO
2 stops17h 34m
American Airlines
Deal found 4/14$308
This American Airlines deal was found by Cheapflights users on 4/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/111:23 pm
SJO
-
IAD
1 stop9h 36m
American Airlines
Sat 11/148:09 pm
IAD
-
SJO
1 stop17h 13m
American Airlines
Deal found 4/15$311
This Copa Airlines deal was found by Cheapflights users on 4/16. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:01 am
SJO
-
IAD
1 stop15h 21m
Copa Airlines
Tue 4/282:21 am
IAD
-
SJO
1 stop7h 59m
Copa Airlines
Deal found 4/16$313
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Thu 5/712:10 pm
SJO
-
IAD
2 stops18h 39m
American Airlines
Sat 5/168:07 pm
IAD
-
SJO
2 stops17h 00m
American Airlines
Deal found 4/14$315
This American Airlines deal was found by Cheapflights users on 4/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:10 pm
SJO
-
IAD
2 stops18h 39m
American Airlines
Sun 5/38:11 pm
IAD
-
SJO
2 stops16h 56m
American Airlines
Deal found 4/15$316
This Copa Airlines deal was found by Cheapflights users on 4/15. 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 5/132:59 pm
SJO
-
IAD
1 stop7h 34m
Copa Airlines
Fri 5/154:38 pm
IAD
-
SJO
1 stop17h 43m
Copa Airlines
Deal found 4/15$317
This Copa Airlines deal was found by Cheapflights users on 4/17. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2410:05 am
SJO
-
IAD
1 stop12h 28m
Copa Airlines
Thu 6/44:38 pm
IAD
-
SJO
1 stop16h 34m
Copa Airlines
Deal found 4/17$321
This Avianca deal was found by Cheapflights users on 4/16. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:25 pm
SJO
-
IAD
1 stop6h 50m
Avianca
Sat 9/193:40 am
IAD
-
SJO
1 stop6h 50m
Avianca
Deal found 4/16$322
This Kiwi.com deal was found by Cheapflights users on 4/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:35 am
SJO
-
IAD
2 stops11h 34m
Frontier
Sat 6/67:27 pm
IAD
-
SJO
1 stop14h 52m
Frontier
Deal found 4/17$323
This Avianca deal was found by Cheapflights users on 4/14. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:25 pm
SJO
-
IAD
1 stop6h 50m
Avianca
Mon 9/285:45 am
IAD
-
SJO
1 stop7h 45m
Avianca
Deal found 4/14$324
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 5/202:40 pm
LIR
-
IAD
2 stops16h 20m
American Airlines
Wed 5/278:22 pm
IAD
-
LIR
2 stops18h 56m
American Airlines
Deal found 4/16$351

Find flight deals from Costa Rica to Dulles Intl

Keep the following information in mind while searching for Costa Rica to Dulles Intl flight deals. Data was last updated April 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$304
(Kiwi.com)

One-way from

$182
(American Airlines)

Popular in

March

Cheapest in

February

Average price

$327

Good one-way deal

$221 or less
Provider with most accurate pricing for San José Juan Santamaria Intl-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Washington, D.C. (WAS) flights.
Search Deals
From Costa Rica to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Costa Rica to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a one-way flight from Costa Rica to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Costa Rica to Dulles Intl 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 April 19, 2026.
Use the filters below to find and compare flights from Costa Rica to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 5/23

10:05 am-4:21 am

1 stop16h 16m

Washington, D.C. Dulles Intl

Sun 5/31

4:38 pm-7:12 am

1 stop16h 34m

$313

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 9/16

8:45 am-12:32 am

1 stop13h 47m

Washington, D.C. Dulles Intl

Wed 9/30

4:34 pm-7:10 am

1 stop16h 36m

$313

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 5/13

8:47 am-4:21 am

1 stop17h 34m

Washington, D.C. Dulles Intl

Tue 6/16

2:00 am-9:06 am

1 stop9h 06m

$313

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 5/20

1:37 pm-12:33 am

1 stop8h 56m

Washington, D.C. Dulles Intl

Thu 8/20

4:34 pm-7:10 am

1 stop16h 36m

$313
Quickest round-trip

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 5/29

6:01 pm-4:21 am

1 stop8h 20m

Washington, D.C. Dulles Intl

Sat 6/6

2:21 am-8:21 am

1 stop8h 00m

$313

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Thu 5/28

10:05 am-4:21 am

1 stop16h 16m

Washington, D.C. Dulles Intl

Sat 6/6

2:21 am-8:21 am

1 stop8h 00m

$313

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 5/13

2:59 pm-12:33 am

1 stop7h 34m

Washington, D.C. Dulles Intl

Fri 5/15

4:38 pm-8:21 am

1 stop17h 43m

$317

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 5/23

8:45 am-12:55 am

1 stop14h 10m

Washington, D.C. Dulles Intl

Tue 6/9

10:20 pm-10:11 am

1 stop13h 51m

$326

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Thu 9/24

7:55 am-6:58 pm

1 stop9h 03m

Washington, D.C. Dulles Intl

Tue 9/29

6:15 am-12:21 pm

1 stop8h 06m

$326

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 5/29

11:13 am-10:43 pm

1 stop9h 30m

Washington, D.C. Dulles Intl

Thu 6/4

2:53 pm-10:39 pm

1 stop9h 46m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 38 resultsSorted by cheapest first
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Best time to book a flight from Costa Rica to Dulles Intl

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

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

Currently, February is the cheapest month in which you can book a flight from Costa Rica to Washington, D.C. Dulles Intl Airport (average of $116). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $210). 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 CR to IAD?

Find hourly flight availability from Costa Rica to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 19, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Costa Rica to Washington, D.C. Dulles Intl Airport as you normally would.

How often are flights from Costa Rica to Washington, D.C. delayed?

About 14% of weekly flights between Costa Rica and Washington, D.C. have experienced delays in the past year, with the average delay time being 121 minutes.

What is the most punctual flight time for Costa Rica to Washington, D.C. flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Costa Rica to Washington, D.C. flights?

Over the last year, Avianca have had the lowest number of delays on this route, with just 13% of flights being delayed.

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated April 19, 2026.
Read through reviews of airlines operating flights from Costa Rica to Washington, D.C. Dulles Intl Airport, such as Copa Airlines,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.5
Good
1,580 reviews

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.8

Entertainment

6.8

Food

6.8

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
1,580 reviews
Copa Airlines
7.5
Good
1,580 reviews

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.8

Entertainment

6.8

Food

6.8

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
9,605 reviews
Copa Airlines
7.5
Good
1,580 reviews

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.8

Entertainment

6.8

Food

6.8

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
11,621 reviews
Copa Airlines
7.5
Good
1,580 reviews

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.8

Entertainment

6.8

Food

6.8

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
2,513 reviews
Copa Airlines
7.5
Good
1,580 reviews

Crew

8.1

Overall

7.5

Comfort

7.4

Boarding

7.8

Entertainment

6.8

Food

6.8

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 Costa Rica to Dulles Intl. 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 Costa Rica to Washington, D.C. Dulles Intl Airport?

    Copa Airlines, United Airlines, and American Airlines can get you from Costa Rica to Washington, D.C. Dulles Intl Airport in just under 8h 39m. Your travel time can differ by up to 18h 14m. Costa Rica and Washington, D.C. Dulles Intl Airport are separated by a distance of 2020 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Avianca. According to our data, you can fly for as low as $132. Users have also found prices from $135 and $136 on American Airlines and United Airlines, respectively.

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

    Looking for the cheapest flight from Costa Rica to Washington, D.C. Dulles Intl Airport? While on average our users pay $535, our data indicates the cheapest price to be $157. The most popular route (San José Juan Santamaria Intl - Washington, D.C. Dulles Intl), is priced around $304.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Costa Rica to Washington, D.C. Dulles Intl Airport (average of $116). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $210). 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

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Owings Mills
Springfield
Arlington
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Largo
Upper Marlboro
Waldorf
Bowie
Clinton
Towson
Hunt Valley
Cordova

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Top 4 airlines flying from Costa Rica to Dulles Intl

Discover the top 4 airlines that operate flights from Costa Rica to Dulles Intl. 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 April 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$201Average$340FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$281FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$225Average$230FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$274Average$338FlexibilityNo cancel feeOn-time70%

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