Q: E

Most accurate provider : When it comes to deals on San Sebastian-Washington, D.C. Dulles Intl Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Sebastian-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from San Sebastian-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Q: E

Most trusted provider : When it comes to deals on San Sebastian-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Sebastian-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Question 1

How long is the flight from San Sebastian to Washington, D.C. Dulles Intl Airport?

Accepted Answer

For as low as $896, American Airlines can have you in Washington, D.C. Dulles Intl Airport from San Sebastian in 52h 56m. There are 3807 mi between San Sebastian and Washington, D.C. Dulles Intl Airport.

Question 2

What is the cheapest month to book a flight from San Sebastian to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Currently, October is the cheapest month in which you can book a flight from San Sebastian to Washington, D.C. Dulles Intl Airport (average of $376). Flying from San Sebastian to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $931). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 3

E

Accepted Answer

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Question 4

E

Accepted Answer

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Question 5

What is the cheapest time of day to fly from EAS to IAD?

Accepted Answer

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Sebastian to Washington, D.C. Dulles Intl Airport as you normally would.

Question 6

E

Accepted Answer

Most accurate provider: When it comes to deals on San Sebastian-Washington, D.C. Dulles Intl Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Sebastian-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from San Sebastian-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Question 7

E

Accepted Answer

Most trusted provider: When it comes to deals on San Sebastian-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Sebastian-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Question 8

What airport do you fly from for flights from San Sebastian to Washington, D.C. Dulles Intl?

Accepted Answer

Located just 9.7 mi from the city center, San Sebastián is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from San Sebastian. Booking flights from San Sebastián (EAS) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 0 different airlines.

Question 9

Can I find deals for flights from San Sebastian to Dulles Intl that include hotel bookings?

Accepted Answer

Yes. In addition to deals on San Sebastian to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 10

How can I find direct flights from San Sebastian to Dulles Intl?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Sebastian to Dulles Intl.

Question 11

Can I find deals for business class flights from San Sebastian to Dulles Intl?

Accepted Answer

Yes. Cheapflights offers flight deals from San Sebastian to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Most accurate provider	Expedia 2 stars
Most trusted provider	Expedia 3 stars
Round-trip from	$896 (American Airlines)

$896+ Cheap flights from San Sebastian (EAS) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/4. Fares are subject to change and may not be available on all flights or dates of travel.

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Best flights from San Sebastian to Dulles IntlDiscover carefully curated flight deals from San Sebastian to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Discover carefully curated flight deals from San Sebastian to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

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Find useful and relevant information for your journey from San Sebastian to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Sebastian to Washington, D.C. Dulles Intl?

How long is the flight from San Sebastian to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from San Sebastian to Dulles Intl that include hotel bookings?

How can I find direct flights from San Sebastian to Dulles Intl?

Can I find deals for business class flights from San Sebastian to Dulles Intl?

What is the cheapest month to book a flight from San Sebastian to Washington, D.C. Dulles Intl Airport?

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Best flights from San Sebastian to Dulles Intl
Discover carefully curated flight deals from San Sebastian to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.