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Dulles Intl

$165+ Cheap flights from Costa Rica to Dulles Intl (IAD)

SJO — IAD
Nov 19 — Nov 261
Thu 11/19
Thu 11/26
1 adult, Economy
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Cheap flight deals from Costa Rica to Dulles Intl

Cheapest flights from Costa Rica to Dulles Intl

Fri 11/133:10 pm -
1 stop23h 35m
Thu 11/264:30 pm -
1 stop22h 40m
Deal found 10/19$325
Thu 12/172:00 pm -
Nonstop4h 35m
Sat 1/96:00 am -
1 stop8h 10m
Deal found 10/17$357
Wed 12/25:53 pm -
1 stop8h 26m
Tue 12/83:30 pm -
1 stop17h 48m
Deal found 10/19$363
Tue 10/207:45 pm -
1 stop6h 35m
Mon 10/263:30 am -
1 stop7h 05m
Deal found 10/19$364
Wed 11/253:10 pm -
1 stop9h 25m
Sat 11/283:00 am -
1 stop6h 50m
Deal found 10/19$365
Tue 10/275:10 am -
1 stop8h 45m
Sat 11/74:25 pm -
1 stop8h 15m
Deal found 10/19$366
Wed 10/281:00 pm -
1 stop23h 18m
Wed 11/187:17 pm -
2 stops19h 29m
Deal found 10/18$368
Tue 10/276:00 am -
2 stops24h 44m
Sat 11/77:17 pm -
2 stops19h 29m
Deal found 10/16$370
Sun 11/15:10 am -
1 stop8h 45m
Tue 11/32:30 am -
1 stop7h 05m
Deal found 10/15$374
Sat 10/247:45 pm -
1 stop6h 30m
Mon 11/24:25 pm -
1 stop8h 15m
Deal found 10/19$375
Tue 10/203:10 pm -
1 stop11h 10m
Sun 10/254:00 am -
1 stop6h 50m
Deal found 10/19$376
Sun 11/12:07 pm -
1 stop8h 47m
Sat 11/77:17 pm -
2 stops19h 29m
Deal found 10/16$378

Find flight deals from Costa Rica to Dulles Intl

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$325
(Trip.com)

One-way from

$165
(United Airlines)

Popular in

August

Cheapest in

February

Average price

$363

Good round-trip deal

$354 or less

Good one-way deal

$199 or less
Provider with most accurate pricing for San José Juan Santamaria Intl-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Washington, D.C. (WAS) flights.
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From Costa Rica to Washington, D.C. Dulles Intl
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One-way flight from Costa Rica to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 17% potential increase in price ($79 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in October 2026
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Price to beat on a round-trip flight from Costa Rica to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Costa Rica to Washington, D.C. Dulles Intl.
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Cheapflights Fare Finder

 
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

Cheapest round-trip

LiberiaWashington, D.C.

LIR Liberia - IAD Washington, D.C. Dulles Intl

LIRIAD

Liberia

Thu 1/14

2:06 pm-3:58 pm

1 stop24h 52m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$165
Quickest round-trip

LiberiaWashington, D.C.

LIR Liberia - IAD Washington, D.C. Dulles Intl

LIRIAD

Liberia

Thu 12/24

2:00 pm-7:35 pm

Nonstop4h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$184

LiberiaWashington, D.C.

LIR Liberia - IAD Washington, D.C. Dulles Intl

LIRIAD

Liberia

Wed 12/23

2:00 pm-7:35 pm

Nonstop4h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$184

LiberiaWashington, D.C.

LIR Liberia - IAD Washington, D.C. Dulles Intl

LIRIAD

Liberia

Thu 12/10

5:20 pm-7:22 am

1 stop13h 02m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$190

LiberiaWashington, D.C.

LIR Liberia - IAD Washington, D.C. Dulles Intl

LIRIAD

Liberia

Tue 1/26

5:20 pm-11:51 am

1 stop17h 31m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$194

LiberiaWashington, D.C.

LIR Liberia - IAD Washington, D.C. Dulles Intl

LIRIAD

Liberia

Thu 1/14

1:50 pm-6:26 pm

2 stops27h 36m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$196

LiberiaWashington, D.C.

LIR Liberia - IAD Washington, D.C. Dulles Intl

LIRIAD

Liberia

Thu 11/12

5:20 pm-9:27 pm

1 stop27h 07m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$196

LiberiaWashington, D.C.

LIR Liberia - IAD Washington, D.C. Dulles Intl

LIRIAD

Liberia

Sun 12/20

2:00 pm-7:35 pm

Nonstop4h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$211

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Fri 12/25

2:15 pm-7:59 pm

Nonstop4h 44m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$229

San JoséWashington, D.C.

SJO San José Juan Santamaria Intl - IAD Washington, D.C. Dulles Intl

SJOIAD

San José Juan Santamaria Intl

Sat 11/21

2:15 pm-7:59 pm

Nonstop4h 44m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-11:00 pm

Nonstop0h 00m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 38 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

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 $305). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $415). 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?

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 14% 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 Monday 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.

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

To ensure you get the cheapest price possible for a flight from Costa Rica to Washington, D.C. Dulles Intl Airport, you should look to book at least 44 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Costa Rica to Washington, D.C. Dulles Intl Airport, such as Copa Airlines,United Airlines, andAvianca. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Copa Airlines
7.6
Good
1,557 reviews

Boarding

7.8

Comfort

7.5

Crew

8.1

Entertainment

6.9

Overall

7.6

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

PEI - PTY

The attention to us was excellent. Help was provided with care.
Copa Airlines
7.6
Good
1,557 reviews
Copa Airlines
7.6
Good
1,557 reviews

Boarding

7.8

Comfort

7.5

Crew

8.1

Entertainment

6.9

Overall

7.6

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

PEI - PTY

The attention to us was excellent. Help was provided with care.
United Airlines
7.3
Good
10,388 reviews
Copa Airlines
7.6
Good
1,557 reviews

Boarding

7.8

Comfort

7.5

Crew

8.1

Entertainment

6.9

Overall

7.6

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

PEI - PTY

The attention to us was excellent. Help was provided with care.
Avianca
6.5
Okay
2,554 reviews
Copa Airlines
7.6
Good
1,557 reviews

Boarding

7.8

Comfort

7.5

Crew

8.1

Entertainment

6.9

Overall

7.6

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

PEI - PTY

The attention to us was excellent. Help was provided with care.

Related info for your journey

  • How long is the flight from Costa Rica to Washington, D.C. Dulles Intl Airport?

    Air Canada, American Airlines, and United Airlines can get you from Costa Rica to Washington, D.C. Dulles Intl Airport in just under 13h 05m. Your travel time can differ by up to 12h 57m. Costa Rica and Washington, D.C. Dulles Intl Airport are separated by a distance of 2020 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 United Airlines. According to our data, you can fly for as low as $136. Users have also found prices from $136 and $139 on American Airlines and Avianca, respectively.

  • 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 $421, our data indicates the cheapest price to be $224. The most popular route (San José Juan Santamaria Intl - Washington, D.C. Dulles Intl), is priced around $356.

  • 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 $305). Flying from Costa Rica to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $415). 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
Chantilly
Arlington
Woodbridge
Owings Mills
Lanham
Sterling
Tysons
Herndon
Reston
Hyattsville
Rockville
Springfield
Fredericksburg
Falls Church
Oxon Hill
Laurel
Towson
Clinton
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Costa Rica to Dulles Intl

AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$201Average$360FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$216Average$343FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$294Average$404FlexibilityNo cancel feeOn-time70%

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