$192 Find Cheap Flights from Costa Rica to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl departing on 1/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Costa Rica to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Costa Rica to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Costa Rica to Dulles Intl

Sun, Nov 1 - Tue, Nov 3
Avianca Logo
3:05 pm - 1:40 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
9h 35m1 stop San Salvador El Salvador Intl
Avianca Logo
1:30 am - 8:35 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
8h 05m1 stop Guatemala City La Aurora
$331Avianca
Mon, Sep 14 - Mon, Sep 28
Avianca Logo
5:25 pm - 2:15 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
6h 50m1 stop Guatemala City La Aurora
Avianca Logo
4:10 am - 8:45 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
6h 35m1 stop San Salvador El Salvador Intl
$331Avianca
Mon, Feb 1 - Sun, Feb 7
Avianca Logo
4:15 pm - 12:10 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
6h 55m1 stop Guatemala City La Aurora
Avianca Logo
3:00 am - 8:40 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
6h 40m1 stop San Salvador El Salvador Intl
$331Avianca
Tue, Oct 27 - Sat, Nov 7
United Airlines Logo
7:45 am - 6:20 pmSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
8h 35m1 stop Houston George Bush Intcntl
United Airlines Logo
8:59 am - 1:00 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
5h 01mnonstop
$350United Airlines
Fri, Sep 11 - Tue, Sep 15
United Airlines Logo
8:45 am - 7:35 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
20h 50m1 stop San Francisco
United Airlines Logo
10:29 pm - 12:21 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
15h 52m1 stop Houston George Bush Intcntl
$354United Airlines
Wed, Sep 16 - Mon, Sep 21
Copa Airlines Logo
10:03 am - 12:32 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
12h 29m1 stop Panama City Tocumen Intl
Copa Airlines Logo
2:25 am - 8:19 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
7h 54m1 stop Panama City Tocumen Intl
$358Copa Airlines
Wed, Sep 30 - Sun, Oct 4
Copa Airlines Logo
8:45 am - 4:20 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
17h 35m1 stop Panama City Tocumen Intl
Copa Airlines Logo
2:25 am - 8:19 amIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
7h 54m1 stop Panama City Tocumen Intl
$358Copa Airlines
Sat, Jan 30 - Sat, Feb 6
American Airlines Logo
1:34 pm - 11:03 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
20h 29m2 stops Miami Charlotte Douglas
American Airlines Logo
5:46 pm - 12:34 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
19h 48m2 stops Charlotte Douglas Miami
$359American Airlines
Thu, Oct 8 - Tue, Oct 20
American Airlines Logo
1:00 pm - 8:44 amSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
17h 44m2 stops Dallas/Fort Worth Charlotte Douglas
American Airlines Logo
6:42 am - 2:00 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
9h 18m1 stop Dallas/Fort Worth
$359American Airlines
Sat, Nov 21 - Sat, Nov 28
United Airlines Logo
2:15 pm - 7:59 pmSJO  San José Juan Santamaria Intl-IAD Washington, D.C. Dulles Intl
4h 44mnonstop
United Airlines Logo
8:59 am - 1:00 pmIAD  Washington, D.C. Dulles Intl-SJO San José Juan Santamaria Intl
5h 01mnonstop
$361United Airlines
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

Get data-powered insights and trends for flights to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Washington Dulles Airport?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Liberia, at $331 return. The most popular connection is from San José to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $331 in the last 5 days.

What is the cheapest day to fly to Washington, D.C.?

The average price of all round-trip flights to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Tuesday where round-trip tickets can be as cheap as $235. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $648 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Washington, D.C. Dulles Intl Airport is October, where tickets cost $258 on average for return flights. On the other hand, the most expensive months are July and April, where the average cost of tickets from Costa Rica is $415 and $382 respectively. For one-way flights, the best month to travel is October with an average price of $164.

What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

The average price for all round-trip flights to Washington, D.C. Dulles Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, when round-trip flights cost $263 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $340.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low season

August

Cheapest flight

$192
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 24% increase in price.
Flight from Liberia to Washington, D.C.

FAQs - booking Washington Dulles Airport flights

  • What is the cheapest flight to Washington Dulles Airport?

    In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Liberia, at $331 return. The most popular connection is from San José to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $331 in the last 5 days.

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    Central Washington, D.C. is 22 miles away from Washington, D.C. Dulles Intl Airport.

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $604. The cheapest price found on KAYAK in the last 2 weeks cost $332 and departed from San José Juan Santamaria Intl Airport.

  • How does KAYAK find such low prices on flights to Washington Dulles Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Washington Dulles Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Washington Dulles Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Washington Dulles Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington Dulles Airport with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Washington Dulles Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

    Each week there are around 6,134 direct flights from within Costa Rica to Washington, D.C. Dulles Intl Airport. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Washington Dulles Airport

  • Looking for cheap airfare to Washington Dulles Airport? 25% of our users found round-trip tickets to Washington Dulles Airport for the following prices or less: From San José $496
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top 3 airlines serving from Costa Rica to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Costa Rica to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Copa AirlinesOverall score based on 1563 reviews
6.9Food
7.8Boarding
8.1Crew
6.8Entertainment
7.4Comfort
Airline reviews

stood in line to check in luggage for nearly an hour. very poor service and not excusable

4.0 OkayAnonymous, Jun 2026
Read more Copa Airlines reviews

stood in line to check in luggage for nearly an hour. very poor service and not excusable

Same as the previous flight as far as comfort and food. Entertainment didn’t have a watchable screen so everything would need to be watched on your own device in which they didn’t have a charging port that accommodated my iPhone. Seats were very uncomfortable. Staff was very friendly.

Do not book it’s a scam! They stole $1200 from me

Some of the Air hostesses are not that friendly. Need improvement

horrible service, food was an embarrassment, no charging for cellphones, stay away

Great experience with a crew always thinking in the passenger

We paid extra with copa for seats near one another The plane was changed and we lost our seats We were all Separated. We have not received a refund for our seats despite emailing and calling.

We were in transit from Lima (flight at 1.10am) and we were in stand by in our flight from Panama to Washington. We wait from 4.30 am to 18.30pm in the Airport. The company give us 2 x 15 dollars for eat during the day and a personnal travel voucher of 400 dollars each. Do they buy food one time something in the Airport ??? And one of us live in France so the voucher is not usable. More than 24 hours travel !! And our place were near the toilets, with 8 children around us. The boy behind my seat stamped his feet on my back all the flight. Really Wonder full ! So we are totally unhappy with our travel. Thanks Copa Airlines....

I loved my experience. Very safe, Very informative and very friendly.

Copa crew is almost never great in terms of service.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

Flight attendants were great. Food mediocre. Bamboo utensils not Great especially if you have to cut something. Seating a bit crowded.

Boarding was terrible. My wife uses a wheel chair and she was in an incredibly hot closed metal cargo box for close to 20 minutes before getting on board

Better seats, allow us to upgrade, terrible website, poor telephone service, better equipment

Horrible experience with Avianca, they delayed their flight and when we arrived to NYC, AVIANCA took 1 hr y 30 mins to park the airplane and all passenger get off the plane, it made me lost all my trains to get back home and I came back to my place at 3 am instead of 12 am. On the top of that their plane seat are so uncomfortable and is not enough space and killed my legs and knees, Avianca used to be good when it was a Colombian company, now after Brasilian company bought them, their service quality is bad and their flights are delayed and oversold.

I handed in my suitcase in perfect condition at SAL Airport. And in MIA Airport I received it with one corner broken and the wheels bent.

I like the crew members they're very friendly. Clean plane. The flight was on time. I dont like the comfort my car seat its better that the plane seats. They charge for everything. This airline was very good. Now it's a low cost airline

6 hour flight and have to pay for everything 100 dollars to add a carry-on bag is insane

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

Not what it used to be. The sale of food makes them look greedy!

Avianca is not what it used to be. So disappointing

Overpriced checked bag price of $120 and they charge you for carryon if the size is not minimal of $120.

Felt very cramped in the back of plane. There was an hour delay for take off sitting on the runway, but we did arrive on time. They charge $120 for carry on bag and backpack at the airport its ridiculous.

Traveling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Winchester
Linthicum Heights
Hanover
Springfield
Gaithersburg
Towson
Martinsburg
Oxon Hill
Owings Mills
Charles Town
Greenbelt
Glen Burnie
Edgewood
Chesapeake Beach
Camp Springs
Ellicott City
Pikesville
Colonial Beach
Hunt Valley
Lutherville Timonium

Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.