IAD - SJO

Find Cheap Flights from Washington, D.C. to San José

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San José

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San José, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to San José, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Washington, D.C. to San José (IAD-SJO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Washington, D.C. to San José 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 return flight deals from Washington, D.C. to San José

Avianca Logo
IAD-SJO
4h 55mdirect
Avianca Logo
SJO-IAD
4h 25mdirect
Avianca
Find Deal
United Airlines Logo
IAD-SJO
4h 59mdirect
United Airlines Logo
SJO-IAD
4h 41mdirect
United Airlines
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
Avianca's Classic fare includes a free checked bag.
United's Wi-Fi offers free messaging on flights.
Expert advice
Expert advice
Expert advice
Expert advice
When to travel
September
Cheapest • 23% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Direct flights
1 day a week
There are direct flights from Washington, D.C. to San José 1 day a week: Sat.
Direct flights
Direct flights
Direct flights
Direct flights
Cheapest return fare
Avianca
Mon 15/9
IAD - SJO • Direct
Cheapest one-way flight
Avianca
Mon 15/9
IAD - SJO • Direct
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San José!
Expert advice

Expert advice for your flight from Washington, D.C. to San José

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Avianca

Avianca's Classic fare includes a carry-on, personal item, and free checked bag.


Avianca's LifeMiles program offers attractive redemption rates, often better than other Star Alliance partners.

Read more about Aviancaby Mark Chesnut
United Airlines

United's Economy Plus offers up to six inches more legroom than standard economy seats.


United's Wi-Fi offers free messaging; T-Mobile customers get free streaming Wi-Fi on flights.

Read more about United Airlinesby Stefanie Waldek
Airports
IAD

Dulles offers the AeroTrain and mobile lounges for quick terminal transfers. Check the airport map to plan your route efficiently.

Read more about IADby Stefanie Waldek
SJO

Arrange ground transportation in advance for a smoother exit from SJO. Hotels often provide helpful information and may offer transport services.

Read more about SJOby Mark Chesnut
Our travel experts
Mark Chesnut

Mark Chesnut

Expert on Avianca and SJO

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Read more
Booking Insights

KAYAK's insights & trends for Washington, D.C. to San José flights

Get data-powered insights and trends into flights from Washington, D.C. to San José to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to San José, 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 from Washington, D.C. Dulles Intl Airport to San José is September, where tickets cost £224 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is £442 and £391 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to San José, 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 on the flight from Washington, D.C. Dulles Intl Airport to San José, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Find deals

Good to know - Cheap tickets from Washington, D.C. to San José

Low seasonSeptember
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (51% more expensive on average)

When to book flights from Washington, D.C. to San José

Are your dates flexible? Find out the best times to travel from Washington, D.C. to San José based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington, D.C. to San José flights

  • Which other nearby cities are served by the Juan Santamaría International Airport (SJO)?

    Juan Santamaría International Airport (SJO) primarily serves the capital city of Costa Rica, San José. However, it is also the main international gateway for travelers visiting various other cities and destinations within Costa Rica. They include Alajuela, Heredia, Cartago, and Jaco.

  • What are the most popular connecting routes between Washington Dulles Airport (IAD) and Juan Santamaría International Airport (SJO)?

    Many travelers between Washington Dulles Airport (IAD) and Juan Santamaría International Airport (SJO) connect through major US hubs such as Miami (MIA) or Dallas (DFW). These hubs offer multiple daily flights to SJO, providing convenient options for connecting passengers. Some connect through other Central American cities, such as Panama (PTY) or San Salvador (SAL).

  • What are the most eco-friendly airlines offering flights from Washington Dulles International Airport (IAD) to Juan Santamaría International (SJO)?

    Consider Delta, American Airlines, or Copa Airlines if you want to travel sustainably from Washington Dulles International Airport (IAD) to Juan Santamaría International (SJO). Delta has taken steps to reduce emissions and improve fuel efficiency. They've invested in modernizing their fleet, including more fuel-efficient aircraft. They also have a carbon offset program and initiatives to minimize waste.

  • Do airlines offer family services on trips between Washington Dulles International Airport (IAD) and Juan Santamaría International (SJO)?

    American Airlines, Copa Airlines, and Avianca are parents’ favorites between Washington Dulles International Airport (IAD) and Juan Santamaría International Airport (SJO). They offer in-flight entertainment options that often include a selection of family-friendly movies, TV shows, and games to keep children entertained during the journey.

  • Which airlines offer Wi-Fi service onboard planes from Washington, D.C. to San José?

    Delta, and JetBlue offer inflight Wi-Fi service on the Washington, D.C. to San José flight route.

  • Which aircraft models fly most regularly from Washington, D.C. to San José?

    The Airbus A320neo is the aircraft model that flies most regularly on the Washington, D.C. to San José flight route.

  • How does KAYAK find such low prices on flights from Washington, D.C. to San José?

    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 from Washington, D.C. to San José.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to San José?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San José from Washington, D.C. is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to San José?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San José with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to San José?

    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 San José from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Washington, D.C. Dulles Intl Airport to San José

  • Looking for a cheap flight from San José to Washington, D.C.? 25% of our users found flights on this route for San José or less round-trip.
  • United Airlines is the primary carrier that operates the most flights from Washington Dulles International Airport (IAD). United Airlines has a major hub at IAD, and it offers a wide range of domestic and international flights from this airport, including to Juan Santamaría International Airport (SJO). Choosing this carrier lets you enjoy accelerated services and excellent amenities at IAD.
  • Several airlines that operate flights between Washington Dulles International Airport (IAD) and Juan Santamaría International Airport (SJO) in San Jose, Costa Rica, offer seat upgrades. These airlines might include major carriers like United Airlines and American Airlines, which allow passengers to move from the economy to business or first class cabins.
  • Major airlines operating between Washington Dulles International Airport (IAD) and Juan Santamaría International Airport (SJO), such as United Airlines and American Airlines, have put policies and services in place to assist passengers with disabilities. These services include wheelchair assistance, priority boarding, and special seating.
  • Although Ronald Reagan Airport (DCA) and Baltimore Airport (BWI) serve Washington, D.C., Washington Dulles International Airport (IAD) is a major gateway for international travel. It offers a wider range of international flights and connections to various destinations around the world compared to BWI and DCA. Still, the facility is known for its spacious terminals and modern facilities, providing a comfortable travel experience for passengers.
  • Passengers traveling in business and first class between Washington Dulles International Airport (IAD) and Juan Santamaría International Airport (SJO) experience more spacious and comfortable seating arrangements, with more legroom and wider seats that often recline fully into lie-flat beds. In addition, passengers will enjoy gourmet dining options tailored to their preferences. Meals may be served on demand, and some airlines offer the opportunity to pre-select your meal before the flight.

Prefer to fly direct from Washington, D.C. to San José?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to San José Juan Santamaria Intl.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to San José Juan Santamaria Intl Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to San José Juan Santamaria Intl

Saturday

United Airlines

United Airlines

See more direct flights

Direct returns

San José Juan Santamaria Intl to Washington, D.C. Dulles Intl

Saturday

United Airlines

United Airlines

See more direct flights

Everything you need to know for your flight from Washington, D.C. to San José

Information on your arrival and departure airports

Washington, D.C. (IAD)
San José (SJO)

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