What airlines fly to Costa Rica?

Avianca, United Airlines and Copa Airlines are the top three most popular airlines that fly to Costa Rica from Washington, D.C. Dulles Intl Airport according to our data. Avianca is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 6 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Costa Rica?

United Airlines, American Airlines, and Frontier are the most popular carriers operating from Washington, D.C. Dulles Intl to Costa Rica

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Costa Rica?

Prices for flights from Washington, D.C. Dulles Intl Airport to Costa Rica are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Costa Rica?

There are 6 operators available for flights from Washington, D.C. Dulles Intl Airport to Costa Rica as of May 2026.

How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Costa Rica?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Costa Rica.

What documentation or ID do you need to fly to Costa Rica?

The necessary travel and health documents for your Costa Rica trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$154 Cheap Flights from Washington, D.C. Dulles Intl Airport to Costa Rica in 2026

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Costa Rica on average per week?

As of May 2026, 3 flights take off from Washington, D.C. Dulles Intl Airport and land in Costa Rica each week. The most common flight departure day for this route is Tue, with 33% of weekly flights taking off on this day.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Costa Rica

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 11:54 am

IAD

SJO

7h 54m

1 stop

1:25 pm - 12:10 am

SJO

IAD

8h 45m

1 stop

$330Delta

Thu, Sep 10 - Thu, Sep 17

7:00 am - 11:58 am

IAD

SJO

6h 58m

1 stop

1:23 pm - 12:05 am

SJO

IAD

8h 42m

1 stop

$341Delta

Tue, Oct 6 - Fri, Oct 9

2:21 am - 9:06 am

IAD

SJO

8h 45m

1 stop

6:01 pm - 4:21 am

SJO

IAD

8h 20m

1 stop

$344Copa Airlines

Sun, May 17 - Fri, May 29

6:15 am - 11:38 am

IAD

SJO

7h 23m

1 stop

1:25 pm - 12:29 am

SJO

IAD

9h 04m

1 stop

$350United Airlines

Tue, Sep 8 - Tue, Sep 15

7:57 am - 12:26 pm

IAD

SJO

6h 29m

1 stop

2:52 pm - 8:58 pm

SJO

IAD

28h 06m

2 stops

$355American Airlines

Fri, Aug 28 - Tue, Sep 1

8:22 pm - 11:50 am

IAD

SJO

17h 28m

2 stops

3:08 pm - 7:33 pm

SJO

IAD

26h 25m

2 stops

$356American Airlines

Tue, Jun 2 - Tue, Jun 9

6:10 am - 1:52 pm

IAD

SJO

9h 42m

1 stop

1:29 pm - 8:58 pm

SJO

IAD

29h 29m

1 stop

$357American Airlines

Wed, Aug 26 - Mon, Aug 31

2:21 am - 9:06 am

IAD

SJO

8h 45m

1 stop

5:50 am - 12:33 am

SJO

IAD

16h 43m

1 stop

$358Copa Airlines

Thu, May 14 - Thu, May 21

10:29 pm - 10:44 am

IAD

LIR

14h 15m

1 stop

11:10 am - 10:43 pm

LIR

IAD

9h 33m

1 stop

$360United Airlines

Sun, May 24 - Fri, May 29

8:15 pm - 11:00 am

IAD

LIR

16h 45m

2 stops

1:15 pm - 8:39 am

LIR

IAD

17h 24m

2 stops

$385GOL

Thu, Oct 1 - Thu, Oct 8

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Washington, D.C. Dulles Intl Airport to Costa Rica

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Costa Rica flight tickets

United Airlines

Sep 1

IAD6:15 amWashington, D.C. Dulles Intl

7h 23m

1 stop

SJO11:38 amSan José Juan Santamaria Intl

Sep 15

SJO1:25 pmSan José Juan Santamaria Intl

9h 04m

1 stop

IAD12:29 amWashington, D.C. Dulles Intl

$350

United Airlines

May 24

IAD10:29 pmWashington, D.C. Dulles Intl

14h 15m

1 stop

LIR10:44 amLiberia

May 29

LIR11:10 amLiberia

9h 33m

1 stop

IAD10:43 pmWashington, D.C. Dulles Intl

$360

United Airlines

May 13

IAD10:35 pmWashington, D.C. Dulles Intl

18h 44m

1 stop

LIR3:19 pmLiberia

May 27

LIR1:20 pmLiberia

9h 11m

1 stop

IAD12:31 amWashington, D.C. Dulles Intl

$378

American Airlines flights from Washington, D.C. Dulles Intl Airport to Costa Rica

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Costa Rica flight tickets

American Airlines

Aug 28

IAD2:53 pmWashington, D.C. Dulles Intl

22h 41m

2 stops

SJO11:34 amSan José Juan Santamaria Intl

Sep 1

SJO2:52 pmSan José Juan Santamaria Intl

28h 06m

2 stops

IAD8:58 pmWashington, D.C. Dulles Intl

$355

American Airlines

Jun 2

IAD8:22 pmWashington, D.C. Dulles Intl

17h 28m

2 stops

SJO11:50 amSan José Juan Santamaria Intl

Jun 9

SJO3:08 pmSan José Juan Santamaria Intl

26h 25m

2 stops

IAD7:33 pmWashington, D.C. Dulles Intl

$356

American Airlines

Aug 26

IAD6:10 amWashington, D.C. Dulles Intl

9h 42m

1 stop

SJO1:52 pmSan José Juan Santamaria Intl

Aug 31

SJO1:29 pmSan José Juan Santamaria Intl

29h 29m

1 stop

IAD8:58 pmWashington, D.C. Dulles Intl

$357

momondo 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

Cheapest round-trip

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 9/10

6:00 am-11:54 am

1 stop7h 54m

San José Juan Santamaria Intl

Thu 9/17

1:25 pm-12:10 am

1 stop8h 45m

$330

Quickest round-trip

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Tue 10/6

7:00 am-11:58 am

1 stop6h 58m

San José Juan Santamaria Intl

Fri 10/9

1:23 pm-12:05 am

1 stop8h 42m

$341

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Sun 5/17

2:21 am-9:06 am

1 stop8h 45m

San José Juan Santamaria Intl

Fri 5/29

6:01 pm-4:21 am

1 stop8h 20m

$344

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Tue 9/8

6:15 am-11:38 am

1 stop7h 23m

San José Juan Santamaria Intl

Tue 9/15

1:25 pm-12:29 am

1 stop9h 04m

$350

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Fri 8/28

7:57 am-12:26 pm

1 stop6h 29m

San José Juan Santamaria Intl

Tue 9/1

2:52 pm-8:58 pm

2 stops28h 06m

$355

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Tue 6/2

8:22 pm-11:50 am

2 stops17h 28m

San José Juan Santamaria Intl

Tue 6/9

3:08 pm-7:33 pm

2 stops26h 25m

$356

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Wed 8/26

6:10 am-1:52 pm

1 stop9h 42m

San José Juan Santamaria Intl

Mon 8/31

1:29 pm-8:58 pm

1 stop29h 29m

$357

Washington, D.C.San José

IAD - SJO

IADSJO

Washington, D.C. Dulles Intl

Thu 5/14

2:21 am-9:06 am

1 stop8h 45m

San José Juan Santamaria Intl

Thu 5/21

5:50 am-12:33 am

1 stop16h 43m

$358

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Sun 5/24

10:29 pm-10:44 am

1 stop14h 15m

Liberia

Fri 5/29

11:10 am-10:43 pm

1 stop9h 33m

$360

Washington, D.C.Liberia

IAD - LIR

IADLIR

Washington, D.C. Dulles Intl

Thu 10/1

8:15 pm-11:00 am

2 stops16h 45m

Liberia

Thu 10/8

1:15 pm-8:39 am

2 stops17h 24m

$385

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Costa Rica

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Costa Rica?

The cheapest month to fly to Costa Rica from Washington, D.C. Dulles Intl Airport is in May. Flight prices, which tend to average around $102, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in May, then August is your next best option. Flight prices from Washington, D.C. Dulles Intl Airport to Costa Rica during August average around $109.

What is the cheapest day to depart on your flight to Costa Rica?

According to our data, Tuesday is the cheapest day to fly to Costa Rica from Washington, D.C. Dulles Intl Airport. The lowest ticket price found for a Tuesday departure recently was $351. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $616. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.

What is the cheapest time of day to depart on your flight to Costa Rica?

In the evening is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Costa Rica when you can find flight prices for as low as $381. Flying to Costa Rica in the evening is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly in the morning, with an average ticket price of $744. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Washington, D.C. Dulles Intl to Costa Rica flight route?

Fly from Washington, D.C. Dulles Intl to San José Juan Santamaria Intl for the best Washington, D.C. Dulles Intl - Costa Rica flight prices

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

You are more likely to see cheaper flights to Costa Rica from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $358 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Washington, D.C. Dulles Intl Airport for as low as $333 on momondo.

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Costa Rica flights?

You could potentially save up to 4% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Costa Rica flight.

Cheap Washington, D.C. Dulles Intl Airport to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Costa Rica

Best Price Found	$153
Fastest flight time	4h 58m
Direct flights	Tue, Wed, Fri and Sun
Airports in Costa Rica	40 airports

The best one-way flight to Costa Rica from Washington, D.C. Dulles Intl Airport in the past 72 hours is $153. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Costa Rica found on momondo in the last 72 hours is $341.

The fastest flight from Washington, D.C. Dulles Intl Airport to Costa Rica takes 4h 58m

Direct flights go from Washington, D.C. Dulles Intl Airport to Costa Rica on Tuesday, Wednesday, Friday and Sunday. There are no airlines offering direct flights.

There are 40 airports in Costa Rica. From Washington, D.C. Dulles Intl Airport there are direct flights to San José Juan Santamaria Intl (SJO).

Search flight deals

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Costa Rica

When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Costa Rica?
Prices for flights from Washington, D.C. Dulles Intl Airport to Costa Rica are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Costa Rica?
There are 6 operators available for flights from Washington, D.C. Dulles Intl Airport to Costa Rica as of May 2026.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Costa Rica?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Costa Rica.
What documentation or ID do you need to fly to Costa Rica?
The necessary travel and health documents for your Costa Rica trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Costa Rica?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Costa Rica, the leading plane model is Boeing 737 MAX 8, making up 48.68% of the total bookings. Other popular models include Airbus A320neo with 36.18%, Embraer 175 (Enhanced Winglets) with 6.58%, and Airbus A320-100/200 with 1.97%.

Best airlines flying from Washington, D.C. Dulles Intl Airport to Costa Rica

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Costa Rica with momondo

Airline	Rating	Free Cancellation	Price
Volaris El Salvador	PriceFrom $102	Free Cancellation	Rating 7.4 29 reviews	Search Volaris El Salvador flights
Delta	PriceFrom $168	Free Cancellation	Rating 7.9 8,462 reviews	Search Delta flights
Copa Airlines	PriceFrom $169	Free Cancellation	Rating 7.5 1,580 reviews	Search Copa Airlines flights
Avianca	PriceFrom $235	Free Cancellation	Rating 6.5 2,522 reviews	Search Avianca flights
United Airlines	PriceFrom $235	Free Cancellation	Rating 7.4 9,684 reviews	Search United Airlines flights
American Airlines	PriceFrom $240	Free Cancellation	Rating 7.1 11,675 reviews	Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Costa Rica?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Costa Rica for you.

Can I find flights from Washington, D.C. to Costa Rica with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Costa Rica flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Costa Rica?

momondo helps you find the best flight between Washington, D.C. and Costa Rica by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Costa Rica right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Costa Rica now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Costa Rica and let you know when they change.

An easier way to manage your Costa Rica trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Fri 6/5

Fri 6/12

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Costa Rica

Popular cities

Other flights from Washington, D.C. Dulles Intl Airport

Other flights to Costa Rica

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Costa Rica

Flights to San Joséfrom $192

Flights to Liberiafrom $287

Flights to Limon

Flights to Tamarindo

Flights to Tortuguero

Flights to Golfito

Flights to Tambor

Cheap flights from Washington, D.C. Dulles Intl Airport to Costa Rica from $154

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Costa Rica

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

United Airlines flights from Washington, D.C. Dulles Intl Airport to Costa Rica

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Costa Rica flight tickets

American Airlines flights from Washington, D.C. Dulles Intl Airport to Costa Rica

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to Costa Rica flight tickets

momondo 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.

See travel insights to Costa Rica from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Costa Rica

What is the cheapest month to fly to Costa Rica?

What is the cheapest day to depart on your flight to Costa Rica?

What is the cheapest time of day to depart on your flight to Costa Rica?

What is the cheapest Washington, D.C. Dulles Intl to Costa Rica flight route?

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

Can stopping save me money on Washington, D.C. Dulles Intl Airport to Costa Rica flights?

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Costa Rica?

What airlines fly to Costa Rica?

How many flights depart from Washington, D.C. Dulles Intl Airport to Costa Rica on average per week?

Cheap Washington, D.C. Dulles Intl Airport to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Costa Rica

Best Price Found

Fastest flight time

Direct flights

Airports in Costa Rica

Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to Costa Rica

Best airlines flying from Washington, D.C. Dulles Intl Airport to Costa Rica

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Costa Rica with momondo

Why use momondo?

An easier way to manage your Costa Rica trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Costa Rica

Popular cities in Costa Rica

Popular flights according to clicks in the last 7 days on momondo

Washington, D.C. Dulles Intl Airport flight routes

According to popular flight searches on momondo this year

Costa Rica flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Costa Rica

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Costa Rica

List of cabin classes available on flights landing in Costa Rica. Availability may vary depending on flight origin and airline.

Complete your trip to Costa Rica

Explore popular destinations other users love

According to popular flight searches on momondo this year