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 Volaris El Salvador. According to our data, you can fly for as low as $109. Users have also found prices from $110 and $112 on Copa Airlines and United Airlines, respectively.

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

On average you can expect to pay $264 for a flight from Washington, D.C. Dulles Intl Airport to Costa Rica. The cheapest flight overall is $111 while the most popular route, (Washington, D.C. Dulles Intl - San José Juan Santamaria Intl) is currently priced at $219.

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.

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 $399. You can even find prices in October for less than $399, as users have found deals to Costa Rica from as low as $214. 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 65%.

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.

$295+ 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	$250 (CheapOair)
One-way from	$109 (Trip.com)
Popular in	December
Cheapest in	October
Average price	$397
Good round-trip deal	$266 or less
Good one-way deal	$132 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. 16% potential increase in price ($77 potential increase over avg. RT price).

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Cheapest flight prices on average. 6% potential price decrease ($24 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 11, 2025.

Thu 8/212:25 pmIAD - SJO

1 stop7h 54mMultiple Airlines

Mon 8/254:17 pmSJO - IAD

1 stop18h 23mMultiple Airlines

Deal found 6/10

$250

Tue 6/1010:32 pmIAD - SJO

1 stop13h 39mUnited Airlines

Wed 6/1811:13 amSJO - IAD

1 stop10h 45mUnited Airlines

Deal found 6/10

$256

Sat 8/162:25 pmIAD - SJO

1 stop18h 19mVolaris El Salvador

Wed 8/272:42 pmSJO - IAD

1 stop19h 58mVolaris El Salvador

Deal found 6/8

$257

Tue 8/52:35 amIAD - SJO

1 stop7h 05mAvianca

Tue 8/125:10 pmSJO - IAD

Nonstop4h 35mAvianca

Deal found 6/8

$260

Sat 11/85:03 amIAD - SJO

2 stops15h 27mAmerican Airlines

Mon 11/174:55 pmSJO - IAD

2 stops18h 57mAmerican Airlines

Deal found 6/11

$266

Sat 11/83:31 pmIAD - SJO

1 stop17h 30mCopa Airlines

Mon 11/174:57 pmSJO - IAD

1 stop9h 25mCopa Airlines

Deal found 6/11

$273

Thu 9/46:25 amIAD - LIR

1 stop8h 36mAmerican Airlines

Thu 9/112:01 pmLIR - IAD

1 stop18h 56mAmerican Airlines

Deal found 6/11

$293

Fri 8/86:00 amIAD - LIR

1 stop8h 00mDelta

Thu 8/141:25 pmLIR - IAD

1 stop8h 56mDelta

Deal found 6/10

$294

Thu 8/146:10 amIAD - LIR

1 stop8h 00mUnited Airlines

Mon 8/1811:49 amLIR - IAD

1 stop15h 35mUnited Airlines

Deal found 6/9

$303

Wed 11/269:55 amIAD - LIR

1 stop29h 00mAir Canada

Wed 12/31:55 pmLIR - IAD

1 stop24h 59mAir Canada

Deal found 6/9

$433

Wed 8/138:19 pmIAD - LIR

1 stop21h 34mAlaska Airlines

Mon 8/1810:00 amLIR - IAD

2 stops31h 19mAlaska Airlines

Deal found 6/11

$507

Thu 8/72:35 amIAD - LIR

2 stops11h 15mMultiple Airlines

Tue 8/1210:15 amLIR - IAD

1 stop11h 30mMultiple Airlines

Deal found 6/10

$548

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 June 11, 2025.

Thu 8/212:25 pmIAD - SJO

1 stop7h 54mMultiple Airlines

Mon 8/254:17 pmSJO - IAD

1 stop18h 23mMultiple Airlines

Deal found 6/10

$250

Wed 9/1010:08 pmIAD - SJO

1 stop15h 30mUnited Airlines

Sat 9/201:30 pmSJO - IAD

1 stop8h 25mUnited Airlines

Deal found 6/9

$256

Sat 8/162:25 pmIAD - SJO

1 stop18h 19mVolaris El Salvador

Wed 8/272:42 pmSJO - IAD

1 stop19h 58mVolaris El Salvador

Deal found 6/8

$257

Tue 8/52:35 amIAD - SJO

1 stop7h 05mAvianca

Tue 8/125:10 pmSJO - IAD

Nonstop4h 35mAvianca

Deal found 6/8

$260

Sat 11/85:03 amIAD - SJO

2 stops15h 27mAmerican Airlines

Mon 11/174:55 pmSJO - IAD

2 stops18h 57mAmerican Airlines

Deal found 6/11

$266

Sat 11/83:31 pmIAD - SJO

1 stop17h 30mCopa Airlines

Mon 11/174:57 pmSJO - IAD

1 stop9h 25mCopa Airlines

Deal found 6/11

$273

Fri 8/86:00 amIAD - LIR

1 stop8h 00mDelta

Thu 8/141:25 pmLIR - IAD

1 stop8h 56mDelta

Deal found 6/10

$294

Wed 11/269:55 amIAD - LIR

1 stop29h 00mAir Canada

Wed 12/31:55 pmLIR - IAD

1 stop24h 59mAir Canada

Deal found 6/9

$433

Wed 8/138:10 amIAD - LIR

2 stops24h 10mAlaska Airlines

Mon 8/1810:00 amLIR - IAD

2 stops31h 19mAlaska Airlines

Deal found 6/11

$507

Thu 9/46:25 amIAD - LIR

1 stop8h 36mAmerican Airlines

Thu 9/112:01 pmLIR - IAD

1 stop18h 56mAmerican Airlines

Deal found 6/11

$293

Thu 8/146:10 amIAD - LIR

1 stop8h 00mUnited Airlines

Mon 8/181:20 pmLIR - IAD

1 stop8h 55mUnited Airlines

Deal found 6/9

$303

Thu 8/72:35 amIAD - LIR

2 stops11h 15mMultiple Airlines

Tue 8/1210:15 amLIR - IAD

1 stop11h 30mMultiple Airlines

Deal found 6/10

$548

Last-minute flights from Dulles Intl to Costa Rica
Discover last-minute flight deals from Dulles Intl to Costa Rica. Data last updated June 11, 2025 and is based on user searches.

Tue 6/1010:32 pmIAD - SJO

1 stop13h 39mUnited Airlines

Wed 6/1811:13 amSJO - IAD

1 stop10h 45mUnited Airlines

Deal found 6/10

$256

Tue 6/101:05 amIAD - SJO

Nonstop4h 30mAvianca

Tue 6/174:20 pmSJO - IAD

1 stop6h 55mAvianca

Deal found 6/9

$260

Tue 6/108:14 pmIAD - SJO

2 stops18h 41mAmerican Airlines

Tue 6/1712:40 pmSJO - IAD

2 stops21h 58mAmerican Airlines

Deal found 6/9

$266

Tue 6/104:34 pmIAD - SJO

1 stop17h 01mCopa Airlines

Tue 6/172:29 pmSJO - IAD

1 stop8h 00mCopa Airlines

Deal found 6/9

$298

Tue 6/1010:32 pmIAD - LIR

1 stop13h 28mUnited Airlines

Wed 6/181:20 pmLIR - IAD

1 stop8h 38mUnited Airlines

Deal found 6/9

$334

Fri 6/137:50 pmIAD - LIR

2 stops19h 20mSouthwest

Mon 6/162:10 pmLIR - IAD

2 stops21h 10mSouthwest

Deal found 6/9

$601

Mon 6/161:05 amIAD - SJO

Nonstop4h 30mMultiple Airlines

Mon 6/3011:15 amSJO - IAD

1 stop23h 25mMultiple Airlines

Deal found 6/9

$284

Mon 6/162:21 amIAD - SJO

1 stop7h 59mCopa Airlines

Mon 6/232:53 pmSJO - IAD

1 stop7h 36mCopa Airlines

Deal found 6/10

$325

Tue 6/176:55 amIAD - LIR

1 stop6h 29mAmerican Airlines

Tue 6/241:59 pmLIR - IAD

2 stops20h 39mAmerican Airlines

Deal found 6/10

$365

Thu 6/1910:32 pmIAD - LIR

1 stop13h 28mUnited Airlines

Mon 6/234:35 pmLIR - IAD

1 stop12h 52mUnited Airlines

Deal found 6/8

$343

Fri 6/2010:32 pmIAD - SJO

1 stop13h 39mUnited Airlines

Sat 7/127:55 amSJO - IAD

1 stop13h 46mUnited Airlines

Deal found 6/10

$356

Fri 6/202:21 amIAD - LIR

2 stops12h 49mMultiple Airlines

Tue 6/2410:15 amLIR - IAD

1 stop11h 30mMultiple Airlines

Deal found 6/10

$638

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 June 11, 2025.

Tue 10/72:37 amIAD - SJO

1 stop13h 20mVolaris El Salvador

Deal found 6/10

$109

Sat 9/202:25 amIAD - SJO

1 stop7h 55mCopa Airlines

Deal found 6/10

$110

Fri 6/2010:32 pmIAD - SJO

1 stop13h 39mUnited Airlines

Deal found 6/10

$112

Mon 8/182:37 amIAD - SJO

1 stop19h 42mMultiple Airlines

Deal found 6/10

$113

Wed 9/246:25 amIAD - SJO

2 stops15h 17mAmerican Airlines

Deal found 6/11

$115

Mon 8/186:10 amIAD - LIR

1 stop10h 13mUnited Airlines

Deal found 6/10

$117

Sat 7/261:05 amIAD - SJO

Nonstop4h 30mAvianca

Deal found 6/10

$120

Sat 8/168:19 pmIAD - LIR

2 stops18h 40mAmerican Airlines

Deal found 6/10

$126

Sat 7/266:00 amIAD - LIR

1 stop9h 15mDelta

Deal found 6/11

$127

Sun 8/106:00 amIAD - SJO

1 stop7h 56mDelta

Deal found 6/10

$127

Wed 7/306:44 pmIAD - SJO

2 stops27h 20mIberia

Deal found 6/9

$138

Tue 9/97:00 amIAD - LIR

3 stops25h 20mAlaska Airlines

Deal found 6/10

$255

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.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 8/21

2:25 pm-8:19 pm

1 stop7h 54m

San José Juan Santamaria Intl

Mon 8/25

4:17 pm-12:40 pm

1 stop18h 23m

$250

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Wed 9/10

10:08 pm-11:38 am

1 stop15h 30m

San José Juan Santamaria Intl

Sat 9/20

1:30 pm-11:55 pm

1 stop8h 25m

$256

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sat 8/16

2:25 pm-6:44 am

1 stop18h 19m

San José Juan Santamaria Intl

Wed 8/27

2:42 pm-12:40 pm

1 stop19h 58m

$257

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Tue 8/5

2:35 am-7:40 am

1 stop7h 05m

San José Juan Santamaria Intl

Tue 8/12

5:10 pm-11:45 pm

Nonstop4h 35m

$260

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sat 11/8

5:03 am-7:30 pm

2 stops15h 27m

San José Juan Santamaria Intl

Mon 11/17

4:55 pm-12:52 pm

2 stops18h 57m

$266

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sat 11/8

3:31 pm-8:01 am

1 stop17h 30m

San José Juan Santamaria Intl

Mon 11/17

4:57 pm-3:22 am

1 stop9h 25m

$273

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Thu 9/4

6:25 am-1:01 pm

1 stop8h 36m

Liberia

Thu 9/11

2:01 pm-10:57 am

1 stop18h 56m

$293

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Fri 8/8

6:00 am-12:00 pm

1 stop8h 00m

Liberia

Thu 8/14

1:25 pm-12:21 am

1 stop8h 56m

$294

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Thu 8/14

6:10 am-12:10 pm

1 stop8h 00m

Liberia

Mon 8/18

1:20 pm-12:15 am

1 stop8h 55m

$303

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Wed 11/26

9:55 am-1:55 pm

1 stop29h 00m

Liberia

Wed 12/3

1:55 pm-3:54 pm

1 stop24h 59m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 28 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.

Rainfall in Costa Rica 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

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

Read through reviews of airlines operating flights from Washington, D.C. to Costa Rica, such as Alaska Airlines, Southwest and Delta. 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

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Surinder,May 2025

SEA - YYZ

Southwest

8.0

Very good

4,288 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Surinder,May 2025

SEA - YYZ

Delta

8.0

Very good

7,951 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Surinder,May 2025

SEA - YYZ

Copa Airlines

7.5

Good

1,451 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

Surinder,May 2025

SEA - YYZ

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 Volaris El Salvador. According to our data, you can fly for as low as $109. Users have also found prices from $110 and $112 on Copa Airlines and United Airlines, respectively.
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Costa Rica?
On average you can expect to pay $264 for a flight from Washington, D.C. Dulles Intl Airport to Costa Rica. The cheapest flight overall is $111 while the most popular route, (Washington, D.C. Dulles Intl - San José Juan Santamaria Intl) is currently priced at $219.
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 Panama City flights

Dulles Intl to San José flights

Dulles Intl to Guatemala City flights

Baltimore to San José flights

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Dulles Intl to Philip S.W.Goldson flights

Baltimore to Panama City flights

Reagan-National to Guatemala City flights

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Reagan-National to Philip S.W.Goldson flights

Dulles Intl to Liberia flights

Reagan-National to Liberia flights

Baltimore to Liberia flights

Dulles Intl to Managua flights

Dulles Intl to San Pedro Sula flights

Baltimore to San Pedro Sula flights

Reagan-National to San Pedro Sula flights

Dulles Intl to Coxen Hole flights

Baltimore to Managua flights

Baltimore to Coxen Hole flights

Reagan-National to Managua flights

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Dulles Intl to Flores flights

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Baltimore to David flights

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Dulles Intl to Belmopan flights

Reagan-National to Tegucigalpa flights

Reagan-National to David flights

Baltimore to Tegucigalpa flights

Dulles Intl to San Pedro Town flights

Top 6 airlines flying from Dulles Intl to Costa Rica

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$174	Average$498	FlexibilityNo cancel fee	On-timeN/A
Volaris El Salvador	Cheapest$179	Average$290	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$199	Average$612	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$230	Average$494	FlexibilityNo cancel fee	On-time71%
Avianca	Cheapest$248	Average$397	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$275	Average$406	FlexibilityNo cancel fee	On-time70%

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$109+ 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 10/7. 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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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 June 11, 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 June 11, 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 June 11, 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 June 11, 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.

Rainfall in Costa Rica by month

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

Temperature in Costa Rica by month

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

Reviews of airlines servicing Costa Rica

Read through reviews of airlines operating flights from Washington, D.C. to Costa Rica, such as Alaska Airlines, Southwest and Delta. 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?

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

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 June 11, 2025.