HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$132+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — IAD
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Costa Rica to Dulles Intl 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 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 October 10, 2025.

This United Airlines deal was found by Cheapflights users on 10/8. 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.
Thu 10/161:30 pmSJO - IAD
1 stop8h 29mUnited Airlines
Sat 10/2510:18 pmIAD - SJO
1 stop14h 07mUnited Airlines
Deal found 10/8$217
This Avianca deal was found by Cheapflights users on 10/7. 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.
Fri 10/104:50 pmSJO - IAD
2 stops9h 30mAvianca
Mon 10/135:05 pmIAD - SJO
2 stops16h 35mAvianca
Deal found 10/7$218
This United Airlines deal was found by Cheapflights users on 10/8. 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.
Thu 10/237:55 amSJO - IAD
1 stop12h 11mUnited Airlines
Mon 10/2710:10 pmIAD - SJO
1 stop16h 05mUnited Airlines
Deal found 10/8$226
This Cheapflightsfares deal was found by Cheapflights users on 10/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/144:20 pmSJO - IAD
1 stop6h 55mAvianca
Mon 10/202:35 amIAD - SJO
1 stop7h 05mAvianca
Deal found 10/8$227
This Cheapflightsfares deal was found by Cheapflights users on 10/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:45 pmSJO - IAD
1 stop9h 35mAvianca
Tue 11/41:30 amIAD - SJO
1 stop7h 15mAvianca
Deal found 10/9$228
This Cheapflightsfares deal was found by Cheapflights users on 10/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/165:10 pmSJO - IAD
Nonstop4h 25mAvianca
Tue 1/1311:55 pmIAD - SJO
Nonstop4h 55mAvianca
Deal found 10/8$230
This Avianca deal was found by Cheapflights users on 10/9. 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.
Fri 10/314:30 pmSJO - IAD
1 stop8h 10mAvianca
Tue 11/41:30 amIAD - SJO
1 stop7h 15mAvianca
Deal found 10/9$231
This Cheapflightsfares deal was found by Cheapflights users on 10/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/224:30 pmSJO - IAD
1 stop9h 40mAvianca
Tue 12/3011:55 pmIAD - SJO
Nonstop4h 55mAvianca
Deal found 10/9$232
This Cheapflightsfares deal was found by Cheapflights users on 10/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/94:20 pmSJO - IAD
1 stop6h 55mAvianca
Tue 10/142:35 amIAD - SJO
1 stop7h 05mAvianca
Deal found 10/8$237
This United Airlines deal was found by Cheapflights users on 10/8. 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 12/38:35 amLIR - IAD
1 stop12h 40mUnited Airlines
Sat 12/610:10 pmIAD - LIR
1 stop18h 58mUnited Airlines
Deal found 10/8$256
This American Airlines deal was found by Cheapflights users on 10/9. 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 10/2912:45 pmLIR - IAD
2 stops19h 10mAmerican Airlines
Tue 11/42:16 pmIAD - LIR
2 stops23h 02mAmerican Airlines
Deal found 10/9$265
This American Airlines deal was found by Cheapflights users on 10/8. 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 10/3112:45 pmLIR - IAD
2 stops29h 00mAmerican Airlines
Sun 11/28:09 pmIAD - LIR
2 stops19h 04mAmerican Airlines
Deal found 10/8$274

Cheap 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 October 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(United Airlines)

One-way from

$132
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$281

Good round-trip deal

$372 or less

Good one-way deal

$138 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. 12% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 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 Costa Rica to Washington, D.C. Dulles Intl.
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 October 10, 2025.
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

Costa Rica

Fly to

Dulles Intl

Route

Depart

Return

Price

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 10/17

8:37 am-12:45 am

1 stop14h 08m

Washington, D.C. Dulles Intl

Tue 10/21

4:00 pm-7:15 am

1 stop17h 15m

$217

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 10/21

8:37 am-8:15 am

1 stop21h 38m

Washington, D.C. Dulles Intl

Sun 10/26

6:00 am-10:25 am

1 stop30h 25m

$217

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 10/14

7:55 am-10:06 pm

1 stop12h 11m

Washington, D.C. Dulles Intl

Tue 10/21

6:30 am-7:15 am

1 stop26h 45m

$217

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 10/25

8:37 am-5:36 am

1 stop18h 59m

Washington, D.C. Dulles Intl

Wed 10/29

6:00 am-11:42 am

1 stop7h 42m

$217

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 10/29

8:40 am-2:50 pm

1 stop28h 10m

Washington, D.C. Dulles Intl

Thu 11/6

10:10 pm-1:15 pm

1 stop16h 05m

$217

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 12/16

9:40 am-6:55 am

1 stop20h 15m

Washington, D.C. Dulles Intl

Tue 1/13

2:10 pm-8:32 am

1 stop19h 22m

$226

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 12/13

8:45 am-10:16 pm

1 stop12h 31m

Washington, D.C. Dulles Intl

Tue 3/31

10:06 pm-10:11 am

1 stop14h 05m

$226

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Thu 11/6

8:10 am-11:33 pm

1 stop14h 23m

Washington, D.C. Dulles Intl

Thu 11/13

1:13 am-9:05 am

1 stop8h 52m

$250

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 10/14

8:11 am-4:20 am

1 stop18h 09m

Washington, D.C. Dulles Intl

Thu 10/23

2:25 am-9:04 am

1 stop8h 39m

$254

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 10/21

2:54 pm-4:20 am

1 stop11h 26m

Washington, D.C. Dulles Intl

Sat 10/25

2:25 am-9:04 am

1 stop8h 39m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/8

Showing 1-10 of 41 results
1
2
3
...
5

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, July is the cheapest month in which you can book a flight from Costa Rica to Washington, D.C. Dulles Intl Airport (average of $138). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $250). 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 October 10, 2025.

One of the essential ways to save on airfare from Costa Rica to Washington, D.C. Dulles Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 30% on airfare.

What is the cheapest day to fly from Costa Rica to Washington, D.C. Dulles Intl Airport?

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

Travelers seeking maximum savings on their Costa Rica to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 10, 2025.
Read through reviews of airlines operating flights from Costa Rica to Washington, D.C. Dulles Intl Airport, such as Copa Airlines, Volaris El Salvador, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,545 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Copa Airlines
7.6
Good
1,545 reviews
Copa Airlines
7.6
Good
1,545 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Volaris El Salvador
7.4
Good
Copa Airlines
7.6
Good
1,545 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
United Airlines
7.4
Good
8,966 reviews
Copa Airlines
7.6
Good
1,545 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
American Airlines
7.2
Good
11,043 reviews
Copa Airlines
7.6
Good
1,545 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip
Avianca
6.7
Okay
2,447 reviews
Copa Airlines
7.6
Good
1,545 reviews

Comfort

7.4

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Juan Pablo,Sep 2025

PTY - VVI

not a good expirience, the plane was packed, the seats wear very unconftrable, coudent conect with the entratainmente service on the plane, the onboarding was in charge of a very angry lady i really had a unplesent trip

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?

    United Airlines, American Airlines, and Air Canada can get you from Costa Rica to Washington, D.C. Dulles Intl Airport in just under 14h 08m. Your travel time can differ by up to 9h 01m. Costa Rica and Washington, D.C. Dulles Intl Airport are separated by a distance of 2042 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $263, our data indicates the cheapest price to be $138. The most popular route (San José Juan Santamaria Intl - Washington, D.C. Dulles Intl), is priced around $211.

  • 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, July is the cheapest month in which you can book a flight from Costa Rica to Washington, D.C. Dulles Intl Airport (average of $138). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in February is currently the most expensive (average of $250). 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
Arlington
Tysons
Silver Spring
Springfield
Hanover
Gaithersburg
Fredericksburg
Fairfax
Linthicum Heights
Falls Church
Owings Mills
Manassas
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Rockville

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 Costa Rica to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
San Salvador to Dulles Intl flights
Guatemala City to Dulles Intl flights
San José to Dulles Intl flights
San José to Reagan-National flights
San José to Baltimore flights
Guatemala City to Reagan-National flights
Guatemala City to Baltimore flights
San Salvador to Baltimore flights
San Pedro Sula to Dulles Intl flights
Panama City to Dulles Intl flights
San Salvador to Reagan-National flights
San Pedro Sula to Baltimore flights
San Pedro Sula to Reagan-National flights
Panama City to Baltimore flights
Panama City to Reagan-National flights
Philip S.W.Goldson to Reagan-National flights
Managua to Dulles Intl flights
Managua to Reagan-National flights
Philip S.W.Goldson to Dulles Intl flights
Managua to Baltimore flights
Liberia to Dulles Intl flights
Philip S.W.Goldson to Baltimore flights
Liberia to Baltimore flights
Liberia to Reagan-National flights
Tegucigalpa to Baltimore flights
Coxen Hole to Reagan-National flights
David to Dulles Intl flights
Tegucigalpa to Dulles Intl flights
Coxen Hole to Baltimore flights
Coxen Hole to Dulles Intl flights
Tegucigalpa to Reagan-National flights

Top 5 airlines flying from Costa Rica to Dulles Intl

Discover the top 5 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 October 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Volaris El SalvadorCheapest$194Average$271FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$218Average$393FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$226Average$266FlexibilityNo cancel feeOn-time71%
AviancaCheapest$227Average$357FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$286Average$360FlexibilityNo cancel feeOn-time70%

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.