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$135+ Cheap flights from Dulles Intl (IAD) 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SJO
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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Cheap flight deals from Dulles Intl to Costa Rica

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Costa Rica (CR0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2024.

Round-trip from

$289
(Trip.com)

One-way from

$135
(American Airlines)
From Washington, D.C. Dulles Intl to Costa Rica
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One-way flight from Washington, D.C. Dulles Intl to Costa Rica
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Find flight deals from Dulles Intl to Costa Rica

Cheapest flights from Dulles Intl to Costa Rica
Explore the most affordable flight options available from Dulles Intl to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This Avianca deal was found by Cheapflights users on 12/22. 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 12/3111:55 pmIAD - SJO
Nonstop4h 50mAvianca
Thu 1/165:00 pmSJO - IAD
Nonstop4h 35mAvianca
Deal found 12/22$294
This American Airlines deal was found by Cheapflights users on 12/22. 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 12/315:00 amIAD - SJO
2 stops16h 04mAmerican Airlines
Thu 1/161:11 pmSJO - IAD
2 stops18h 30mAmerican Airlines
Deal found 12/22$307
This Mytrip deal was found by Cheapflights users on 12/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/311:30 amIAD - SJO
1 stop7h 05mMultiple Airlines
Wed 1/221:46 pmSJO - IAD
1 stop20h 23mMultiple Airlines
Deal found 12/21$427
This Kiwi.com deal was found by Cheapflights users on 12/22. 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.
Tue 12/313:31 pmIAD - SJO
1 stop22h 41mCopa Airlines
Thu 1/165:23 pmSJO - IAD
1 stop19h 38mCopa Airlines
Deal found 12/22$472
This Delta deal was found by Cheapflights users on 12/21. 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.
Tue 12/317:19 amIAD - LIR
1 stop8h 13mDelta
Thu 1/92:20 pmLIR - IAD
1 stop9h 02mDelta
Deal found 12/21$582
This American Airlines deal was found by Cheapflights users on 12/21. 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.
Sun 12/225:29 pmIAD - LIR
1 stop19h 51mAmerican Airlines
Sun 12/2911:41 amLIR - IAD
2 stops20h 08mAmerican Airlines
Deal found 12/21$668
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Tue 12/246:35 amIAD - LIR
1 stop10h 33mUnited Airlines
Tue 12/3112:30 pmLIR - IAD
1 stop10h 29mUnited Airlines
Deal found 12/21$702
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Sun 12/298:37 amIAD - SJO
1 stop16h 21mUnited Airlines
Wed 1/226:30 amSJO - IAD
1 stop14h 39mUnited Airlines
Deal found 12/21$710
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Wed 12/253:25 pmIAD - SJO
1 stop19h 53mFrontier
Sun 12/2911:38 amSJO - IAD
1 stop27h 14mFrontier
Deal found 12/21$781
This Delta deal was found by Cheapflights users on 12/21. 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 12/237:15 amIAD - SJO
1 stop15h 40mDelta
Fri 12/277:05 amSJO - IAD
1 stop9h 57mDelta
Deal found 12/21$822
This Mytrip deal was found by Cheapflights users on 12/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3111:55 pmIAD - LIR
1 stop7h 35mMultiple Airlines
Sun 1/53:45 pmLIR - IAD
2 stops27h 32mMultiple Airlines
Deal found 12/21$1,017
This Air Canada deal was found by Cheapflights users on 12/21. 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.
Tue 12/243:55 pmIAD - LIR
1 stop22h 50mAir Canada
Sun 12/294:15 pmLIR - IAD
1 stop16h 31mAir Canada
Deal found 12/21$1,496

Find flights from Dulles Intl to Costa Rica within your budget

Customize your flight search to find flights from Dulles Intl 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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 1/19

1:24 am-10:17 am

1 stop9h 53m

San José Juan Santamaria Intl

Fri 1/31

11:15 am-11:09 am

1 stop22h 54m

$289

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Mon 1/20

3:24 pm-7:35 am

1 stop17h 11m

San José Juan Santamaria Intl

Mon 2/3

5:51 am-2:03 pm

1 stop7h 12m

$290

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 3/6

1:00 pm-10:17 am

1 stop22h 17m

San José Juan Santamaria Intl

Tue 3/11

4:40 pm-1:10 am

1 stop6h 30m

$292

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Mon 1/27

8:05 pm-1:47 pm

2 stops18h 42m

San José Juan Santamaria Intl

Sat 2/8

3:14 pm-1:23 pm

2 stops21h 09m

$293

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sat 1/11

11:55 pm-3:45 am

Nonstop4h 50m

San José Juan Santamaria Intl

Thu 1/16

5:00 pm-10:35 pm

Nonstop4h 35m

$294

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Sun 2/2

8:05 pm-12:30 pm

1 stop17h 25m

Liberia

Mon 2/10

1:50 pm-1:22 pm

2 stops22h 32m

$308

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Wed 1/8

6:00 am-2:29 pm

1 stop9h 29m

Liberia

Wed 1/15

2:20 pm-12:22 am

1 stop9h 02m

$313

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Sun 1/12

6:00 am-5:57 pm

1 stop12h 57m

Liberia

Fri 1/17

5:15 pm-7:26 am

1 stop13h 11m

$323

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 2/2

9:15 am-8:50 pm

2 stops36h 35m

San José Juan Santamaria Intl

Wed 2/26

3:18 pm-6:01 pm

2 stops25h 43m

$329

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 3/2

8:56 am-12:55 pm

Nonstop4h 59m

San José Juan Santamaria Intl

Wed 3/12

5:30 am-11:53 pm

1 stop16h 23m

$408

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 27 results
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Best time to book a flight from Dulles Intl to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Dulles Intl 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.

Travel insights for flights from Dulles Intl to Costa Rica

Get recent, data-driven insights about flights from Dulles Intl to Costa Rica including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Costa Rica (average of $398). Flying from Washington, D.C. Dulles Intl Airport to Costa Rica in March is currently the most expensive (average of $555). 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 IAD to CR?

Find hourly flight availability from Dulles Intl 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 December 22, 2024.

When flying from Washington, D.C. Dulles Intl Airport 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.

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

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 December 22, 2024.
Read through reviews of airlines operating flights from Washington, D.C. to Costa Rica, such as American Airlines, Copa Airlines and Avianca. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,537 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.2

Entertainment

7.1

Crew

8.5

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Alaska Airlines
8.0
Very good
9,537 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.2

Entertainment

7.1

Crew

8.5

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Delta
8.0
Very good
8,594 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.2

Entertainment

7.1

Crew

8.5

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Copa Airlines
7.7
Good
1,713 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.2

Entertainment

7.1

Crew

8.5

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

United Airlines
7.4
Good
9,028 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.2

Entertainment

7.1

Crew

8.5

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,537 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.2

Entertainment

7.1

Crew

8.5

Reviews

1 / 10

Things were good, crew was good. It was just the flight itself was very rough. Lots of turbulence, probably one of the shakiest flights I've been on. Kids throwing up, kids crying everywhere because of it.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $135. Users have also found prices from $136 and $138 on Volaris El Salvador and United Airlines, respectively.

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

    Before booking your flight to Costa Rica from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Avianca (88%), Avianca Costa Rica (88%), United Airlines( 86%).

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

    On average you can expect to pay $360 for a flight from Washington, D.C. Dulles Intl Airport to Costa Rica. The cheapest flight overall is $123 while the most popular route, (Washington, D.C. Dulles Intl - San José Juan Santamaria Intl) is currently priced at $210.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Costa Rica (average of $398). Flying from Washington, D.C. Dulles Intl Airport to Costa Rica in March is currently the most expensive (average of $555). 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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Alternative routes for Dulles Intl to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Baltimore to Panama City flights
Dulles Intl to Philip S.W.Goldson flights
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Baltimore to Philip S.W.Goldson flights
Baltimore to Guatemala City flights
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Dulles Intl to San Pedro Sula flights
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Reagan-National to Managua flights
Baltimore to Managua flights
Reagan-National to San Pedro Sula flights
Dulles Intl to Coxen Hole flights
Reagan-National to Coxen Hole flights
Baltimore to Coxen Hole flights
Dulles Intl to David flights
Baltimore to David flights
Dulles Intl to Flores flights
Reagan-National to David flights
Dulles Intl to Tegucigalpa flights
Baltimore to Tegucigalpa flights
Reagan-National to Tegucigalpa flights
Dulles Intl to Bocas del Toro flights
Dulles Intl to Placencia flights
Dulles Intl to Belmopan flights
Dulles Intl to San Pedro Town flights

Top 6 airlines flying from Dulles Intl to Costa Rica

Discover the top 6 airlines that operate flights from Dulles Intl 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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Volaris El SalvadorCheapest$179Average$291FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$183Average$655FlexibilityNo cancel feeOn-time69%
AviancaCheapest$215Average$361FlexibilityNo cancel feeOn-time71%
American AirlinesCheapest$217Average$524FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$268Average$424FlexibilityNo cancel feeOn-time70%
DeltaCheapest$276Average$512FlexibilityNo cancel feeOn-timeN/A
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