$207 Find Cheap Flights from San José to Washington Dulles Airport - Compare and Save

For San José to Washington Dulles Airport, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Washington Dulles Airport back to San José, the best deals are generally found on Thursday, with Sunday being the most expensive.

The cheapest month for flights from San José to Washington, D.C. Dulles Intl Airport is October, where tickets cost $258 (return) on average. On the other hand, the most expensive months are July and April, where the average cost of round-trip tickets is $415 and $382 respectively.

No, with an average price for the route of $255, prices are generally cheapest when you fly direct.

To get a below average price on the flight from San José to Washington, D.C. Dulles Intl Airport, you should book around 2 weeks before departure, which saves you about 7% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

In the past 5 days, the cheapest round-trip tickets from San José to Washington Dulles Airport were found on Avianca ($331) and United Airlines ($354).

There are 2 airlines that fly nonstop from San José to Washington, D.C. Dulles Intl Airport. They are Avianca and United Airlines. The cheapest airline for this route is Avianca, with the best round-trip deal found costing $201. On average, the best prices for this route can be found at United Airlines.

Weekly flights between San José and Washington, D.C. historically see delays in approximately 13% of cases, with the average delay over the past year being 145 minutes.

Typically, flights leaving in the early afternoon tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

Statistically, Tuesday is the day of the week with the fewest delays on this flight route, while Sunday has typically experienced more delays than other days.

Based on our data, Avianca have experienced the fewest delays on this route in the past 12 months, with only about 11% of their flights encountering any delays.

San Salvador (SAL) is the top choice – 66% of KAYAK users who clicked on 1-stop flights from San José to Washington Dulles Airport picked an itinerary connecting there.

Flights via San Francisco (SFO) offer the most affordable fares, with an average round-trip price of $237.

Consider flying via Guatemala City (GUA) for the shortest journey. The average one-way travel time for flights connecting there is 7h 23m.

If you prefer a quick connection, Guatemala City (GUA) often has the shortest layovers from San José to Washington Dulles Airport, with an average of 1h 22m.