Cheap flights from Costa Rica to Washington, D.C. from $141

The month of October is, on average, the cheapest month to fly to Washington, D.C. from Costa Rica, with most prices found around $250. If you’re not able to fly to Washington, D.C. in October, then September is your next best option. Flight prices from Costa Rica to Washington, D.C. during September average around $253.

On average, the least expensive day to fly to Washington, D.C. from Costa Rica is on a Friday. momondo users have found tickets for Friday departures for as low as $172. 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 Costa Rica to Washington, D.C. for around $657.

In the afternoon is the cheapest time of day to fly from Costa Rica to Washington, D.C. when you can find flight prices for as low as $293. 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 $402. 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 Costa Rica - Washington, D.C. flight prices

You are more likely to see cheaper flights to Washington, D.C. from Costa Rica when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $306 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 Costa Rica for as low as $265 on momondo.

There are 3 cabin classes available to choose from on Costa Rica 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.

Southwest, United Airlines, and Delta are the most popular carriers operating from Costa Rica to Washington, D.C.

Avianca, United Airlines and American Airlines are the top three most popular airlines that fly to Washington, D.C. from Costa Rica according to our data. Avianca is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 7 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 13% of flights between Costa Rica 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. Thursday 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.

The number of flights available between Costa Rica and Washington, D.C. is 4 per week as of March 2026. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.

Flight times from Costa Rica to Washington, D.C. vary, but if you’re flying out of San José and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 4h 41m on average. Another popular route from Costa Rica to Washington, D.C. is flying from Liberia to Washington, D.C. Dulles Intl Airport, which will take roughly 8h 39m. Keep in mind that layovers or delays could extend your travel time.