Cheap flights from San José to Washington, D.C. from $155

The month of February is, on average, the cheapest month to fly to Washington, D.C. from San José, with most prices found around $268. If you’re not able to fly to Washington, D.C. in February, then January is your next best option. Flight prices from San José to Washington, D.C. during January average around $329.

On average, the least expensive day to fly to Washington, D.C. from San José is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $207. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San José to Washington, D.C. for around $612.

In the afternoon is the cheapest time of day to fly from San José to Washington, D.C. when you can find flight prices for as low as $241. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $417. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Washington, D.C. from San José when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from San José for as low as $322 on momondo.

There is only 1 cabin class available to choose from on San José to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 29% on your flight if you consider stops on a San José to Washington, D.C. flight.

As of October 2026, prices for San José to Washington, D.C. flights are approximately 2% cheaper when compared to flights at the same time last year.

Delta, JetBlue, and Frontier are the most popular carriers operating from San José Juan Santamaria Intl to Washington, D.C.

Avianca, United Airlines and Copa Airlines are the top three most popular airlines that fly to Washington, D.C. from San José according to our data. Avianca is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 5 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between San José and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 128 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Monday has historically seen more delays on average compared to the rest of the week.

According to our data, Avianca have had the least number of delays on this route over the last 12 months; with about 12% of their flights experiencing any sort of delay.

San Salvador (SAL) was the most common stop: 48% of momondo users choosing 1-stop flights on this route connected there.

Flights via Dallas (DFW) offer the lowest average round-trip price of $225.

Flights connecting via San Salvador (SAL) have the shortest average one-way travel time: 6h 35m.

Panama City (PTY) has the shortest average layover time for this route: 1h 13m.