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Dulles Intl

$141+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — IAD
Apr 1 — Apr 81
Wed 4/1
Wed 4/8
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 March 2, 2026.

This Avianca deal was found by Cheapflights users on 2/27. 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.
Thu 3/54:15 pm
SJO
-
IAD
1 stop6h 55m
Avianca
Tue 3/172:30 am
IAD
-
SJO
1 stop7h 15m
Avianca
Deal found 2/27$245
This eDestinos deal was found by Cheapflights users on 2/28. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:42 pm
SJO
-
IAD
1 stop8h 03m
Volaris El Salvador
Tue 3/172:35 am
IAD
-
SJO
1 stop13h 28m
Volaris El Salvador
Deal found 2/28$246
This American Airlines deal was found by Cheapflights users on 2/26. 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 4/282:40 pm
LIR
-
IAD
2 stops24h 29m
American Airlines
Tue 5/127:26 pm
IAD
-
LIR
2 stops19h 44m
American Airlines
Deal found 2/26$247
This Avianca deal was found by Cheapflights users on 2/28. 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 3/107:50 pm
SJO
-
IAD
1 stop6h 20m
Avianca
Mon 3/165:15 pm
IAD
-
SJO
1 stop8h 25m
Avianca
Deal found 2/28$248
This Avianca deal was found by Cheapflights users on 3/1. 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.
Wed 3/184:30 pm
SJO
-
IAD
1 stop8h 10m
Avianca
Mon 5/43:40 am
IAD
-
SJO
1 stop6h 50m
Avianca
Deal found 3/1$258
This Avianca deal was found by Cheapflights users on 2/28. 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.
Wed 5/203:10 pm
SJO
-
IAD
1 stop11h 10m
Avianca
Thu 8/205:45 am
IAD
-
SJO
1 stop7h 45m
Avianca
Deal found 2/28$260
This Avianca deal was found by Cheapflights users on 2/26. 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.
Wed 4/293:10 pm
SJO
-
IAD
1 stop9h 35m
Avianca
Mon 5/43:40 am
IAD
-
SJO
1 stop6h 50m
Avianca
Deal found 2/26$264
This Expedia deal was found by Cheapflights users on 2/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:17 pm
SJO
-
IAD
1 stop18h 10m
Volaris El Salvador
Tue 3/172:35 am
IAD
-
SJO
1 stop13h 28m
Volaris El Salvador
Deal found 2/28$265
This United Airlines deal was found by Cheapflights users on 2/26. 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 5/131:20 pm
LIR
-
IAD
1 stop8h 39m
United Airlines
Wed 5/276:30 am
IAD
-
LIR
1 stop7h 40m
United Airlines
Deal found 2/26$266
This Avianca deal was found by Cheapflights users on 2/27. 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 3/107:50 pm
SJO
-
IAD
1 stop6h 20m
Avianca
Mon 3/162:30 am
IAD
-
SJO
1 stop7h 15m
Avianca
Deal found 2/27$267
This Expedia deal was found by Cheapflights users on 2/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/24:17 pm
SJO
-
IAD
1 stop18h 10m
Multiple Airlines
Mon 3/92:35 am
IAD
-
SJO
1 stop19h 50m
Multiple Airlines
Deal found 2/26$268
This United Airlines deal was found by Cheapflights users on 2/28. 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 3/52:01 pm
LIR
-
IAD
1 stop8h 58m
United Airlines
Mon 3/910:31 pm
IAD
-
LIR
1 stop15h 24m
United Airlines
Deal found 2/28$300

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 March 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$247
(American Airlines)

One-way from

$141
(United Airlines)

Popular in

March

Cheapest in

October

Average price

$317

Good round-trip deal

$478 or less

Good one-way deal

$169 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. 4% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 2, 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

LiberiaWashington, D.C.

LIR - IAD

LIRIAD

Liberia

Tue 4/28

2:40 pm-5:09 pm

2 stops24h 29m

Washington, D.C. Dulles Intl

Tue 5/12

7:00 am-1:40 pm

1 stop8h 40m

$247

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 4/28

8:45 am-5:56 am

1 stop19h 11m

Washington, D.C. Dulles Intl

Thu 5/7

6:00 am-12:21 pm

1 stop8h 21m

$282

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 4/25

6:00 am-12:45 am

1 stop16h 45m

Washington, D.C. Dulles Intl

Wed 4/29

6:00 am-12:21 pm

1 stop8h 21m

$282

LiberiaWashington, D.C.

LIR - IAD

LIRIAD

Liberia

Wed 5/13

1:20 pm-11:59 pm

1 stop8h 39m

Washington, D.C. Dulles Intl

Wed 5/27

6:30 am-12:10 pm

1 stop7h 40m

$286

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Tue 3/31

6:21 pm-4:13 am

1 stop7h 52m

Washington, D.C. Dulles Intl

Tue 4/7

4:33 pm-7:08 am

1 stop16h 35m

$287

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Sat 5/2

8:47 am-4:21 am

1 stop17h 34m

Washington, D.C. Dulles Intl

Sun 5/10

4:38 pm-4:47 pm

3 stops26h 09m

$292

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Thu 5/14

8:47 am-4:21 am

1 stop17h 34m

Washington, D.C. Dulles Intl

Thu 5/21

4:38 pm-4:47 pm

3 stops26h 09m

$476

LiberiaWashington, D.C.

LIR - IAD

LIRIAD

Liberia

Sun 8/9

1:59 pm-11:01 am

1 stop19h 02m

Washington, D.C. Dulles Intl

Fri 8/14

6:27 am-12:59 pm

1 stop8h 32m

$527

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Fri 7/3

8:30 am-4:21 am

1 stop17h 51m

Washington, D.C. Dulles Intl

Fri 7/17

6:25 am-4:52 pm

2 stops12h 27m

$545

San JoséWashington, D.C.

SJO - IAD

SJOIAD

San José Juan Santamaria Intl

Thu 3/26

2:21 pm-12:32 am

1 stop8h 11m

Washington, D.C. Dulles Intl

Sun 4/5

2:21 am-4:48 pm

3 stops16h 27m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 37 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 $145). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $240). 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 March 2, 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 13% of weekly flights between Costa Rica and Washington, D.C. have experienced delays in the past year, with the average delay time being 128 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 Thursday 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 12% 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 March 2, 2026.
Read through reviews of airlines operating flights from Costa Rica to Washington, D.C. Dulles Intl Airport, such as Copa Airlines, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.5
Good
1,559 reviews

Crew

8.1

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.
Copa Airlines
7.5
Good
1,559 reviews
Copa Airlines
7.5
Good
1,559 reviews

Crew

8.1

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.
United Airlines
7.4
Good
9,375 reviews
Copa Airlines
7.5
Good
1,559 reviews

Crew

8.1

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.
American Airlines
7.1
Good
11,369 reviews
Copa Airlines
7.5
Good
1,559 reviews

Crew

8.1

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.
Avianca
6.5
Okay
2,491 reviews
Copa Airlines
7.5
Good
1,559 reviews

Crew

8.1

Entertainment

6.8

Boarding

7.8

Food

6.8

Overall

7.5

Comfort

7.4

Reviews

1 / 20
2.0
Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

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?

    American Airlines, United Airlines, and Copa Airlines can get you from Costa Rica to Washington, D.C. Dulles Intl Airport in just under 7h 52m. Your travel time can differ by up to 16h 37m. 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 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 $130. Users have also found prices from $136 and $136 on American Airlines and United Airlines, respectively.

  • What are the most reliable airlines from Costa Rica to Washington, D.C. Dulles Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Costa Rica to Washington, D.C. Dulles Intl Airport consider choosing Avianca (77%), Avianca Costa Rica (77%) or United Airlines (67%) as they are the most reliable in getting you off to your destination on time.

  • 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 $1,185, our data indicates the cheapest price to be $137. The most popular route (San José Juan Santamaria Intl - Washington, D.C. Dulles Intl), is priced around $246.

  • 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 $145). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $240). 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
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Fredericksburg
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Manassas
Bowie
Largo
Clinton
Towson

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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 March 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$201Average$330FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$281FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$225Average$230FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$277Average$346FlexibilityNo cancel feeOn-time70%

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