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Dulles Intl

$131+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — IAD
Dec 25 — Jan 11
Thu 12/25
Thu 1/1
1 adult, Economy
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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 November 25, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/24. 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.
Fri 12/55:00 amSJO - IAD
1 stop8h 55mAvianca
Tue 12/911:55 pmIAD - SJO
Nonstop4h 55mAvianca
Deal found 11/24$193
This FlightHub deal was found by Cheapflights users on 11/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:10 pmSJO - IAD
Nonstop4h 25mAvianca
Mon 3/302:35 amIAD - SJO
Nonstop7h 05mAvianca
Deal found 11/24$197
This Avianca deal was found by Cheapflights users on 11/25. 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 12/165:10 pmSJO - IAD
Nonstop4h 25mAvianca
Thu 1/1511:55 pmIAD - SJO
Nonstop4h 55mAvianca
Deal found 11/25$205
This United Airlines deal was found by Cheapflights users on 11/23. 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.
Thu 12/2512:35 pmSJO - IAD
1 stop10h 14mUnited Airlines
Wed 12/3110:33 pmIAD - SJO
1 stop15h 23mUnited Airlines
Deal found 11/23$206
This Avianca deal was found by Cheapflights users on 11/25. 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 12/163:05 pmSJO - IAD
1 stop9h 35mAvianca
Tue 1/134:15 pmIAD - SJO
1 stop8h 25mAvianca
Deal found 11/25$208
This United Airlines deal was found by Cheapflights users on 11/24. 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 12/52:20 pmSJO - IAD
1 stop31h 00mUnited Airlines
Mon 12/86:39 pmIAD - SJO
1 stop14h 53mUnited Airlines
Deal found 11/24$212
This United Airlines deal was found by Cheapflights users on 11/23. 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.
Sat 12/138:45 amSJO - IAD
1 stop12h 36mUnited Airlines
Tue 3/316:00 amIAD - SJO
1 stop15h 37mUnited Airlines
Deal found 11/23$215
This Cheapflightsfares deal was found by Cheapflights users on 11/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/275:00 amSJO - IAD
1 stop10h 55mAvianca
Mon 12/111:55 pmIAD - SJO
Nonstop4h 55mAvianca
Deal found 11/23$216
This United Airlines deal was found by Cheapflights users on 11/24. 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 12/48:45 amSJO - IAD
1 stop12h 30mUnited Airlines
Tue 12/93:25 pmIAD - SJO
1 stop18h 07mUnited Airlines
Deal found 11/24$221
This United Airlines deal was found by Cheapflights users on 11/25. 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 12/252:20 pmSJO - IAD
1 stop8h 29mUnited Airlines
Mon 12/2910:15 pmIAD - SJO
1 stop23h 24mUnited Airlines
Deal found 11/25$228
This American Airlines deal was found by Cheapflights users on 11/25. 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 12/1012:56 pmSJO - IAD
1 stop9h 12mAmerican Airlines
Sat 1/105:46 pmIAD - SJO
2 stops19h 57mAmerican Airlines
Deal found 11/25$230
This Air Canada deal was found by Cheapflights users on 11/24. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/13:45 pmLIR - IAD
1 stop27h 41mAir Canada
Fri 12/54:30 pmIAD - LIR
1 stop23h 15mAir Canada
Deal found 11/24$342

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 November 25, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$193
(Cheapflightsfares)

One-way from

$131
(Cheapflightsfares)

Popular in

April

Cheapest in

October

Average price

$287

Good round-trip deal

$201 or less

Good one-way deal

$237 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. 8% potential increase in price ($26 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 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 November 25, 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

Wed 3/11

1:05 pm-11:49 am

1 stop20h 44m

Washington, D.C. Dulles Intl

Mon 4/6

10:05 pm-10:11 am

1 stop14h 06m

$206

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 1/23

6:30 am-8:49 pm

1 stop13h 19m

Washington, D.C. Dulles Intl

Sun 1/25

10:28 pm-12:56 pm

1 stop15h 28m

$215

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 12/5

8:45 am-10:15 pm

1 stop12h 30m

Washington, D.C. Dulles Intl

Mon 12/8

6:39 pm-8:32 am

1 stop14h 53m

$221

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Wed 12/24

12:35 pm-10:19 pm

1 stop8h 44m

Washington, D.C. Dulles Intl

Tue 12/30

10:15 pm-10:32 pm

1 stop25h 17m

$254

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 12/23

12:35 pm-11:49 pm

1 stop10h 14m

Washington, D.C. Dulles Intl

Tue 12/30

10:15 pm-10:32 pm

1 stop25h 17m

$254

LiberiaWashington, D.C.

LIR - IAD

LIRIAD

Liberia

Fri 5/1

3:25 pm-11:37 am

1 stop18h 12m

Washington, D.C. Dulles Intl

Tue 5/5

10:06 pm-12:10 pm

1 stop16h 04m

$256

LiberiaWashington, D.C.

LIR - IAD

LIRIAD

Liberia

Mon 3/2

8:35 am-10:16 pm

1 stop12h 41m

Washington, D.C. Dulles Intl

Sat 3/7

10:31 pm-11:55 am

1 stop14h 24m

$256

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Mon 12/22

2:20 pm-11:49 pm

1 stop8h 29m

Washington, D.C. Dulles Intl

Wed 12/31

6:08 am-10:32 pm

1 stop17h 24m

$263

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sun 12/21

2:30 pm-8:13 pm

Nonstop4h 43m

Washington, D.C. Dulles Intl

Tue 12/30

10:15 pm-10:32 pm

1 stop25h 17m

$266

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 2/20

8:11 am-3:15 am

1 stop18h 04m

Washington, D.C. Dulles Intl

Mon 2/23

3:35 pm-7:06 am

1 stop16h 31m

$275

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 34 results
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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, July is the cheapest month in which you can book a flight from Costa Rica to Washington, D.C. Dulles Intl Airport (average of $140). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $232). 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 November 25, 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 afternoon could potentially save you up to 31% 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 Sunday 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.

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

About 16% of weekly flights between Costa Rica and Washington, D.C. have experienced delays in the past year, with the average delay time being 126 minutes.

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

Historically, flights departing in the morning 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 Saturday 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 14% 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 November 25, 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
1,568 reviews

Crew

8.1

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

6.8

Boarding

7.8

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
1,568 reviews
Copa Airlines
7.6
Good
1,568 reviews

Crew

8.1

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

6.8

Boarding

7.8

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
1,568 reviews

Crew

8.1

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

6.8

Boarding

7.8

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
9,043 reviews
Copa Airlines
7.6
Good
1,568 reviews

Crew

8.1

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

6.8

Boarding

7.8

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
11,039 reviews
Copa Airlines
7.6
Good
1,568 reviews

Crew

8.1

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

6.8

Boarding

7.8

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
6.6
Okay
2,478 reviews
Copa Airlines
7.6
Good
1,568 reviews

Crew

8.1

Overall

7.6

Comfort

7.4

Food

6.8

Entertainment

6.8

Boarding

7.8

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 and American Airlines can get you from Costa Rica to Washington, D.C. Dulles Intl Airport in just under 20h 44m. Your travel time can differ by up to 5h 46m. 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 $269, our data indicates the cheapest price to be $115. The most popular route (San José Juan Santamaria Intl - Washington, D.C. Dulles Intl), is priced around $179.

  • 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 $140). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $232). 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
Tysons
Woodbridge
Arlington
Owings Mills
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Linthicum Heights
Manassas
Laurel
Towson
National Harbor
Waldorf
Bowie
Largo
McLean

Browse thousands of different options on Cheapflights for your next trip

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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
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Liberia to Baltimore flights
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Liberia to Reagan-National flights
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Tegucigalpa to Baltimore flights
Coxen Hole to Dulles Intl flights
Coxen Hole to Reagan-National flights
Coxen Hole to Baltimore flights
Tegucigalpa to Reagan-National flights
Tegucigalpa to Dulles Intl 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 November 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Volaris El SalvadorCheapest$194Average$247FlexibilityNo cancel feeOn-timeN/A
AviancaCheapest$216Average$347FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$340FlexibilityNo cancel feeOn-time69%
DeltaCheapest$234Average$285FlexibilityNo cancel feeOn-timeN/A
Copa AirlinesCheapest$286Average$355FlexibilityNo cancel feeOn-time70%

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