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 United Airlines. According to our data, you can fly for as low as $102. Users have also found prices from $107 and $115 on American Airlines and Copa Airlines, respectively.

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.

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).

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

On average you can expect to pay $319 for a flight from Washington, D.C. Dulles Intl Airport to Costa Rica. The cheapest flight overall is $121 while the most popular route, (Washington, D.C. Dulles Intl - San José Juan Santamaria Intl) is currently priced at $225.

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Costa Rica?

The most popular airlines flying from Washington, D.C. Dulles Intl Airport to Costa Rica are American Airlines, Avianca and Copa Airlines. Something to consider prior to booking your flight.

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

Friday flights are generally found to be more expensive for flights from Washington, D.C. Dulles Intl Airport to Costa Rica. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Costa Rica.

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Costa Rica?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 17 days in advance, which can save you up to 13% on flights from Washington, D.C. Dulles Intl Airport to Costa Rica compared to booking the week you need them. Waiting 17 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $339. For sooner than that we have options available in the next 3 days from $343.

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

The best pricing can be found in the month of October. Prices to Costa Rica from Washington, D.C. Dulles Intl Airport average $400. You can even find prices in October for less than $400, as users have found deals to Costa Rica from as low as $201. The month of December appears to be one of the more expensive times to travel to Costa Rica from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 69%.

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.

$102+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Costa Rica

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Cheap flight deals from Dulles Intl to Costa Rica

Round-trip from	$235 (United Airlines)
One-way from	$102 (United Airlines)
Popular in	December
Cheapest in	October
Average price	$361
Good round-trip deal	$269 or less
Good one-way deal	$156 or less

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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Highest demand for flights based on searches. 17% potential increase in price ($84 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($26 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Costa Rica.

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Price to beat on a 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 August 17, 2025.

Sun 11/96:00 amIAD - LIR

1 stop8h 10mUnited Airlines

Fri 11/148:35 amLIR - IAD

1 stop12h 37mUnited Airlines

Deal found 8/15

$235

Thu 9/1110:05 pmIAD - LIR

1 stop16h 05mUnited Airlines

Tue 9/161:20 pmLIR - IAD

1 stop8h 35mUnited Airlines

Deal found 8/15

$240

Mon 9/16:34 amIAD - LIR

1 stop7h 01mAmerican Airlines

Mon 9/82:02 pmLIR - IAD

1 stop18h 55mAmerican Airlines

Deal found 8/17

$245

Thu 9/411:18 amIAD - LIR

2 stops26h 31mAmerican Airlines

Thu 9/1112:49 pmLIR - IAD

2 stops20h 08mAmerican Airlines

Deal found 8/17

$249

Mon 9/226:25 amIAD - LIR

1 stop8h 37mAmerican Airlines

Wed 10/112:49 pmLIR - IAD

2 stops17h 54mAmerican Airlines

Deal found 8/16

$250

Sun 9/148:12 pmIAD - LIR

2 stops17h 37mAmerican Airlines

Sun 9/212:01 pmLIR - IAD

1 stop18h 56mAmerican Airlines

Deal found 8/17

$254

Fri 8/224:34 pmIAD - SJO

1 stop17h 00mCopa Airlines

Thu 8/285:54 pmSJO - IAD

1 stop8h 24mCopa Airlines

Deal found 8/16

$254

Fri 9/122:21 pmIAD - LIR

1 stop22h 59mAmerican Airlines

Tue 9/1612:49 pmLIR - IAD

2 stops20h 08mAmerican Airlines

Deal found 8/17

$255

Mon 9/294:05 amIAD - SJO

1 stop9h 10mMultiple Airlines

Mon 10/67:55 amSJO - IAD

1 stop12h 11mMultiple Airlines

Deal found 8/15

$255

Sat 8/3011:51 amIAD - LIR

1 stop27h 08mAmerican Airlines

Sat 9/612:49 pmLIR - IAD

2 stops17h 57mAmerican Airlines

Deal found 8/17

$256

Mon 9/12:25 amIAD - SJO

1 stop7h 54mCopa Airlines

Tue 9/96:09 pmSJO - IAD

1 stop8h 11mCopa Airlines

Deal found 8/16

$256

Mon 8/251:05 amIAD - SJO

Nonstop4h 30mAvianca

Sat 8/305:10 pmSJO - IAD

Nonstop4h 35mAvianca

Deal found 8/15

$257

Best flights from Dulles Intl to Costa Rica
Discover carefully curated flight deals from Dulles Intl to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 17, 2025.

Sun 11/96:00 amIAD - LIR

1 stop8h 10mUnited Airlines

Fri 11/148:35 amLIR - IAD

1 stop12h 37mUnited Airlines

Deal found 8/15

$235

Sat 9/276:25 amIAD - LIR

1 stop8h 37mAmerican Airlines

Mon 9/292:02 pmLIR - IAD

1 stop18h 55mAmerican Airlines

Deal found 8/15

$245

Fri 8/224:34 pmIAD - SJO

1 stop17h 00mCopa Airlines

Thu 8/285:54 pmSJO - IAD

1 stop8h 24mCopa Airlines

Deal found 8/16

$254

Mon 1/126:30 amIAD - LIR

1 stop7h 38mUnited Airlines

Thu 1/228:50 amLIR - IAD

1 stop12h 46mUnited Airlines

Deal found 8/17

$235

Mon 9/16:34 amIAD - LIR

1 stop7h 01mAmerican Airlines

Mon 9/82:02 pmLIR - IAD

1 stop18h 55mAmerican Airlines

Deal found 8/15

$245

Tue 9/162:25 amIAD - SJO

1 stop9h 33mCopa Airlines

Tue 9/232:55 pmSJO - IAD

1 stop11h 25mCopa Airlines

Deal found 8/15

$256

Wed 1/2810:07 pmIAD - LIR

1 stop15h 48mUnited Airlines

Sun 2/15:15 pmLIR - IAD

1 stop13h 20mUnited Airlines

Deal found 8/15

$240

Thu 9/46:25 amIAD - LIR

1 stop8h 37mAmerican Airlines

Thu 9/112:01 pmLIR - IAD

1 stop18h 56mAmerican Airlines

Deal found 8/15

$245

Sat 8/232:25 amIAD - SJO

1 stop7h 54mCopa Airlines

Sat 8/3010:05 amSJO - IAD

1 stop12h 23mCopa Airlines

Deal found 8/15

$256

Thu 9/1110:05 pmIAD - LIR

1 stop16h 05mUnited Airlines

Tue 9/161:20 pmLIR - IAD

1 stop8h 35mUnited Airlines

Deal found 8/15

$240

Wed 8/202:25 amIAD - SJO

1 stop16h 09mCopa Airlines

Thu 8/2810:05 amSJO - IAD

1 stop16h 13mCopa Airlines

Deal found 8/16

$256

Sat 1/1710:07 pmIAD - LIR

1 stop15h 48mUnited Airlines

Wed 1/218:50 amLIR - IAD

1 stop12h 46mUnited Airlines

Deal found 8/15

$240

Last-minute flights from Dulles Intl to Costa Rica
Discover last-minute flight deals from Dulles Intl to Costa Rica. Data last updated August 17, 2025 and is based on user searches.

Fri 8/224:34 pmIAD - SJO

1 stop17h 00mCopa Airlines

Thu 8/285:54 pmSJO - IAD

1 stop8h 24mCopa Airlines

Deal found 8/16

$254

Fri 8/224:34 pmIAD - SJO

1 stop7h 17mCopa Airlines

Fri 8/296:09 pmSJO - IAD

1 stop8h 09mCopa Airlines

Deal found 8/15

$266

Fri 8/225:05 pmIAD - SJO

1 stop8h 30mAvianca

Mon 8/255:10 pmSJO - IAD

Nonstop4h 35mAvianca

Deal found 8/15

$267

Fri 8/225:05 pmIAD - SJO

1 stop8h 30mAvianca

Tue 8/264:20 pmSJO - IAD

1 stop6h 55mAvianca

Deal found 8/16

$269

Sat 8/232:35 amIAD - SJO

1 stop7h 05mAvianca

Sat 8/305:10 pmSJO - IAD

Nonstop4h 35mAvianca

Deal found 8/15

$265

Sun 8/242:25 amIAD - SJO

1 stop9h 33mCopa Airlines

Fri 8/299:17 amSJO - IAD

3 stops17h 01mCopa Airlines

Deal found 8/15

$261

Mon 8/257:25 pmIAD - LIR

2 stops18h 20mAmerican Airlines

Wed 9/1712:49 pmLIR - IAD

2 stops20h 08mAmerican Airlines

Deal found 8/17

$249

Mon 8/252:25 amIAD - SJO

1 stop7h 54mCopa Airlines

Sat 8/302:55 pmSJO - IAD

1 stop7h 33mCopa Airlines

Deal found 8/15

$256

Mon 8/251:05 amIAD - SJO

Nonstop4h 30mAvianca

Sat 8/305:10 pmSJO - IAD

Nonstop4h 35mAvianca

Deal found 8/17

$257

Mon 8/257:22 amIAD - LIR

1 stop6h 38mDelta

Wed 9/171:25 pmLIR - IAD

1 stop7h 52mDelta

Deal found 8/15

$265

Mon 8/256:27 amIAD - LIR

1 stop8h 32mAmerican Airlines

Fri 8/2912:35 pmLIR - IAD

1 stop9h 17mAmerican Airlines

Deal found 8/16

$353

Tue 8/267:44 amIAD - SJO

1 stop7h 11mAmerican Airlines

Sat 9/131:45 pmSJO - IAD

1 stop17h 01mAmerican Airlines

Deal found 8/16

$262

One-way flights from Dulles Intl to Costa Rica
Search for one-way flight options from Dulles Intl to Costa Rica. Find affordable one-way fares based on user searches. Data last updated August 17, 2025.

Tue 9/166:00 amIAD - LIR

1 stop8h 10mUnited Airlines

Deal found 8/15

$102

Sat 9/205:40 pmIAD - LIR

2 stops20h 09mAmerican Airlines

Deal found 8/16

$107

Wed 1/145:15 pmIAD - LIR

2 stops20h 05mAmerican Airlines

Deal found 8/16

$110

Thu 9/181:53 pmIAD - LIR

2 stops25h 09mAmerican Airlines

Deal found 8/17

$112

Thu 8/214:34 pmIAD - SJO

3 stops26h 18mCopa Airlines

Deal found 8/17

$115

Mon 12/1510:23 pmIAD - LIR

1 stop14h 21mUnited Airlines

Deal found 8/17

$116

Sun 10/266:00 amIAD - LIR

1 stop8h 00mDelta

Deal found 8/17

$117

Fri 9/55:40 pmIAD - SJO

2 stops21h 05mAmerican Airlines

Deal found 8/16

$118

Wed 9/2411:47 amIAD - LIR

1 stop27h 14mAmerican Airlines

Deal found 8/17

$119

Thu 9/189:35 amIAD - SJO

1 stop11h 12mCopa Airlines

Deal found 8/15

$120

Tue 9/167:21 pmIAD - SJO

2 stops26h 21mAmerican Airlines

Deal found 8/15

$121

Wed 10/12:37 amIAD - SJO

1 stop19h 42mMultiple Airlines

Deal found 8/15

$122

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Sun 11/9

6:00 am-1:10 pm

1 stop8h 10m

Liberia

Fri 11/14

8:35 am-10:12 pm

1 stop12h 37m

$235

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Mon 1/12

6:30 am-1:08 pm

1 stop7h 38m

Liberia

Thu 1/22

8:50 am-10:36 pm

1 stop12h 46m

$235

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Wed 1/28

10:07 pm-12:55 pm

1 stop15h 48m

Liberia

Sun 2/1

5:15 pm-7:35 am

1 stop13h 20m

$240

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Thu 9/11

10:05 pm-12:10 pm

1 stop16h 05m

Liberia

Tue 9/16

1:20 pm-11:55 pm

1 stop8h 35m

$240

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Sat 1/17

10:07 pm-12:55 pm

1 stop15h 48m

Liberia

Wed 1/21

8:50 am-10:36 pm

1 stop12h 46m

$240

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Fri 9/26

10:10 pm-11:53 am

1 stop15h 43m

Liberia

Tue 9/30

1:20 pm-11:51 pm

1 stop8h 31m

$240

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Sat 9/27

6:25 am-1:02 pm

1 stop8h 37m

Liberia

Mon 9/29

2:02 pm-10:57 am

1 stop18h 55m

$245

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Mon 9/1

6:34 am-11:35 am

1 stop7h 01m

Liberia

Mon 9/8

2:02 pm-10:57 am

1 stop18h 55m

$245

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Thu 9/4

6:25 am-1:02 pm

1 stop8h 37m

Liberia

Thu 9/11

2:01 pm-10:57 am

1 stop18h 56m

$245

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Fri 8/22

4:34 pm-7:34 am

1 stop17h 00m

San José Juan Santamaria Intl

Thu 8/28

5:54 pm-4:18 am

1 stop8h 24m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 31 results

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Costa Rica

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?

When flying from Washington, D.C. Dulles Intl Airport to Costa Rica, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 46% versus a flight in the morning.

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

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

Reviews of airlines servicing Costa Rica

See what other customers who have flown with Delta, Copa Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,986 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,986 reviews

Delta

8.0

Very good

7,986 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Copa Airlines

7.5

Good

1,509 reviews

Delta

8.0

Very good

7,986 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,919 reviews

Delta

8.0

Very good

7,986 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,986 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Avianca

6.7

Okay

2,405 reviews

Delta

8.0

Very good

7,986 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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 United Airlines. According to our data, you can fly for as low as $102. Users have also found prices from $107 and $115 on American Airlines and Copa Airlines, respectively.
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Costa Rica?
On average you can expect to pay $319 for a flight from Washington, D.C. Dulles Intl Airport to Costa Rica. The cheapest flight overall is $121 while the most popular route, (Washington, D.C. Dulles Intl - San José Juan Santamaria Intl) is currently priced at $225.
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

Alternative routes for Dulles Intl to Costa Rica

Dulles Intl to San Salvador flights

Dulles Intl to San José flights

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Reagan-National to Guatemala City flights

Dulles Intl to Philip S.W.Goldson flights

Baltimore to Philip S.W.Goldson flights

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Dulles Intl to Managua flights

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Dulles Intl to San Pedro Sula flights

Baltimore to San Pedro Sula flights

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Dulles Intl to Coxen Hole flights

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Dulles Intl to San Pedro Town flights

Dulles Intl to Tegucigalpa flights

Top 6 airlines flying from Dulles Intl to Costa Rica

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$174	Average$459	FlexibilityNo cancel fee	On-timeN/A
Volaris El Salvador	Cheapest$200	Average$291	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$215	Average$583	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$236	Average$470	FlexibilityNo cancel fee	On-time71%
Avianca	Cheapest$260	Average$391	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$268	Average$400	FlexibilityNo cancel fee	On-time70%

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$102+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Costa Rica with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Dulles Intl to Costa Rica

Keep the following information in mind while searching for Dulles Intl to Costa Rica flight deals. Data was last updated August 17, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Dulles Intl to Costa Rica

Cheapest flights from Dulles Intl to Costa RicaExplore 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 August 17, 2025.

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 August 17, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Costa Rica that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Costa Rica

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

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 August 17, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Costa Rica. Price data was last updated on November 18, 2024.

Reviews of airlines servicing Costa Rica

See what other customers who have flown with Delta, Copa Airlines, and United Airlines from Washington, D.C. Dulles Intl Airport to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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Alternative routes for Dulles Intl to Costa Rica

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Top 6 airlines flying from Dulles Intl to Costa Rica

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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 August 17, 2025.