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

There are many flights that can get you from Washington, D.C. Dulles Intl Airport to San Sebastian in 13h 10m. Fly via Finnair to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and San Sebastian is about 3807 mi.

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

When flying from Washington, D.C. Dulles Intl Airport to San Sebastian, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-San Sebastian flights, Cheapflights users trust Ovago the most. Ovago 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 Washington, D.C. Dulles Intl Airport-San Sebastian flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

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

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

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

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

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

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

$684+ Cheap Flights from Washington, D.C. Dulles Intl Airport to San Sebastian

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Cheap flight deals from Dulles Intl to San Sebastian

Cheapest

Best

Last-minute

One-way

Cheapest flights from Dulles Intl to San Sebastian
Explore the most affordable flight options available from Dulles Intl to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.

Sat 10/245:00 pm -

1 stop15h 00m

Sat 10/319:20 am -

1 stop13h 00m

Deal found 9/9

$684

Thu 10/158:35 pm -

2 stops29h 45m

Tue 10/205:55 pm -

2 stops27h 35m

Deal found 9/10

$698

Thu 10/296:50 pm -

1 stop13h 10m

Thu 11/59:20 am -

1 stop13h 00m

Deal found 9/14

$804

Sun 10/45:00 pm -

1 stop14h 00m

Tue 10/209:30 pm -

1 stop24h 00m

Deal found 9/9

$847

Thu 10/158:35 pm -

1 stop18h 15m

Tue 10/209:20 am -

1 stop15h 30m

Deal found 9/10

$886

Fri 11/66:05 pm -

2 stops20h 45m

Fri 11/209:20 am -

1 stop13h 00m

Deal found 9/12

$889

Thu 10/151:23 pm -

2 stops13h 17m

Tue 10/209:20 am -

1 stop15h 30m

Deal found 9/10

$890

Fri 11/69:45 pm -

2 stops17h 05m

Tue 11/109:30 pm -

1 stop24h 50m

Deal found 9/12

$891

Fri 11/65:50 pm -

1 stop13h 10m

Tue 11/101:40 pm -

1 stop32h 40m

Deal found 9/12

$897

Fri 11/69:45 pm -

2 stops17h 05m

Tue 11/109:30 pm -

2 stops28h 25m

Deal found 9/12

$898

Fri 10/236:15 am -

2 stops20h 25m

Fri 10/309:20 am -

2 stops16h 36m

Deal found 9/12

$900

Best flights from Dulles Intl to San Sebastian
Discover carefully curated flight deals from Dulles Intl to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.

Thu 10/158:35 pm -

2 stops29h 45m

Tue 10/205:55 pm -

2 stops27h 35m

Deal found 9/10

$698

Fri 2/125:50 pm -

1 stop13h 10m

Tue 2/169:20 am -

1 stop13h 00m

Deal found 9/14

$882

Thu 2/115:50 pm -

1 stop13h 10m

Tue 2/169:20 am -

1 stop13h 00m

Deal found 9/14

$882

Fri 10/236:15 am -

2 stops20h 25m

Fri 10/309:20 am -

2 stops16h 36m

Deal found 9/12

$900

Fri 2/129:45 pm -

2 stops17h 05m

Tue 2/169:30 pm -

2 stops24h 10m

Deal found 9/12

$903

Sun 10/45:00 pm -

1 stop14h 00m

Tue 10/209:30 pm -

1 stop24h 00m

Deal found 9/9

$847

Fri 10/235:10 pm -

1 stop13h 50m

Fri 10/309:20 am -

1 stop13h 00m

Deal found 9/12

$886

Last-minute flights from Dulles Intl to San Sebastian
Discover last-minute flight deals from Dulles Intl to San Sebastian. Data last updated September 14, 2026 and is based on user searches.

Sun 10/45:00 pm -

1 stop14h 00m

Tue 10/209:30 pm -

1 stop24h 00m

Deal found 9/9

$847

Sun 10/45:00 pm -

2 stops18h 20m

Tue 10/209:20 am -

1 stop15h 30m

Deal found 9/9

$929

Mon 10/55:00 pm -

1 stop14h 00m

Wed 10/219:30 pm -

1 stop27h 25m

Deal found 9/13

$903

Thu 10/158:35 pm -

2 stops29h 45m

Tue 10/205:55 pm -

2 stops27h 35m

Deal found 9/10

$698

Thu 10/158:35 pm -

1 stop18h 15m

Tue 10/209:20 am -

1 stop15h 30m

Deal found 9/10

$886

Thu 10/151:23 pm -

2 stops13h 17m

Tue 10/209:20 am -

1 stop15h 30m

Deal found 9/10

$890

Fri 10/236:15 am -

2 stops20h 25m

Fri 10/309:20 am -

2 stops16h 36m

Deal found 9/12

$900

Sat 10/245:00 pm -

1 stop15h 00m

Sat 10/319:20 am -

1 stop13h 00m

Deal found 9/9

$684

Thu 10/296:50 pm -

1 stop13h 10m

Thu 11/59:20 am -

1 stop13h 00m

Deal found 9/14

$804

Thu 10/291:23 pm -

2 stops14h 17m

Thu 11/59:20 am -

1 stop13h 00m

Deal found 9/14

$920

Thu 10/291:23 pm -

2 stops18h 37m

Thu 11/59:30 pm -

2 stops28h 25m

Deal found 9/14

$940

One-way flights from Dulles Intl to San Sebastian
Search for one-way flight options from Dulles Intl to San Sebastian. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.

Fri 10/97:15 pm -

2 stops35h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$1,258

Fri 10/95:45 pm -

2 stops32h 55m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$1,284

Sat 9/268:40 pm -

2 stops18h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/11

$4,309

Sat 9/261:15 pm -

2 stops22h 05m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/10

$4,645

Sat 9/265:00 pm -

1 stop14h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/12

$9,464

Fri 10/96:15 pm -

1 stop20h 35m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/9

$13,655

Find flight deals from Dulles Intl to San Sebastian

Most accurate provider	Ovago 3 stars
Most trusted provider	Ovago 3 stars
Round-trip from	$684 (Kiwi.com)

Provider with most accurate pricing for Washington, D.C. Dulles Intl-San Sebastián flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-San Sebastián flights.

Search Deals

From Washington, D.C. Dulles Intl to San Sebastián

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Thu 10/15

8:35 pm-8:20 am

2 stops29h 45m

San Sebastián

Tue 10/20

5:55 pm-3:30 pm

2 stops27h 35m

$698

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Sun 10/4

5:00 pm-1:00 pm

1 stop14h 00m

San Sebastián

Tue 10/20

9:30 pm-3:30 pm

1 stop24h 00m

$847

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Fri 2/12

5:50 pm-1:00 pm

1 stop13h 10m

San Sebastián

Tue 2/16

9:20 am-4:20 pm

1 stop13h 00m

$882

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Thu 2/11

5:50 pm-1:00 pm

1 stop13h 10m

San Sebastián

Tue 2/16

9:20 am-4:20 pm

1 stop13h 00m

$882

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Fri 10/23

5:10 pm-1:00 pm

1 stop13h 50m

San Sebastián

Fri 10/30

9:20 am-5:20 pm

1 stop13h 00m

$886

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Fri 10/23

6:15 am-8:40 am

2 stops20h 25m

San Sebastián

Fri 10/30

9:20 am-8:56 pm

2 stops16h 36m

$900

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Fri 2/12

9:45 pm-8:50 pm

2 stops17h 05m

San Sebastián

Tue 2/16

9:30 pm-3:40 pm

2 stops24h 10m

$903

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Fri 10/9

7:15 pm-1:00 pm

2 stops35h 45m

San Sebastián

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$1,258

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Fri 10/9

5:45 pm-8:40 am

2 stops32h 55m

San Sebastián

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$1,284

Washington, D.C.San Sebastian

IAD Washington, D.C. Dulles Intl - EAS San Sebastián

IADEAS

Washington, D.C. Dulles Intl

Sat 9/26

8:40 pm-8:50 pm

2 stops18h 10m

San Sebastián

Wed 12/31

12:00 am-6:00 pm

Nonstop0h 00m

$4,309

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 12 resultsSorted by cheapest first

Compare providers for flights from Dulles Intl to San Sebastian

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to San Sebastian in September.

Provider	Price Accuracy	Trust Score*
Ovago	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

Best time to book a flight from Dulles Intl to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Dulles Intl with our price prediction graph.

IAD-EAS

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

What airport do you fly into for flights to San Sebastian from Washington, D.C. Dulles Intl?
Located just 9.7 mi from the city center, San Sebastián is the airport most travelers will use when flying to San Sebastian from Washington, D.C. Dulles Intl. Booking flights from Washington, D.C. Dulles Intl to San Sebastián (EAS) should be relatively easy as there are 0 daily inbound flights from Washington, D.C. Dulles Intl from 0 different airlines.
How long is the flight from Washington, D.C. Dulles Intl Airport to San Sebastian?
There are many flights that can get you from Washington, D.C. Dulles Intl Airport to San Sebastian in 13h 10m. Fly via Finnair to get the fastest option. The distance between Washington, D.C. Dulles Intl Airport and San Sebastian is about 3807 mi.
Can I find deals for flights from Dulles Intl to San Sebastian that include hotel bookings?
Yes. In addition to deals on Dulles Intl to San Sebastian flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Dulles Intl to San Sebastian?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to San Sebastian.
Can I find deals for business class flights from Dulles Intl to San Sebastian?
Yes. Cheapflights offers flight deals from Dulles Intl to San Sebastian by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$684+ Cheap flights from Dulles Intl (IAD) to San Sebastian (EAS)

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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to San Sebastian with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from Dulles Intl to San Sebastian

Cheapest flights from Dulles Intl to San SebastianExplore the most affordable flight options available from Dulles Intl to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.

Explore the most affordable flight options available from Dulles Intl to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.

Best flights from Dulles Intl to San SebastianDiscover carefully curated flight deals from Dulles Intl to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.

Discover carefully curated flight deals from Dulles Intl to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.

Last-minute flights from Dulles Intl to San SebastianDiscover last-minute flight deals from Dulles Intl to San Sebastian. Data last updated September 14, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to San Sebastian. Data last updated September 14, 2026 and is based on user searches.

One-way flights from Dulles Intl to San SebastianSearch for one-way flight options from Dulles Intl to San Sebastian. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.

Search for one-way flight options from Dulles Intl to San Sebastian. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.

Find flight deals from Dulles Intl to San Sebastian

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Sebastian that are best for you.

Compare providers for flights from Dulles Intl to San Sebastian

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to San Sebastian in September.

Best time to book a flight from Dulles Intl to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Dulles Intl with our price prediction graph.

Related info for your journey

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to San Sebastian by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Dulles Intl to San Sebastian by cabin class

Find flights from Dulles Intl to San Sebastian, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Dulles Intl and San Sebastian flights

Browse other Dulles Intl and San Sebastian flight options. Last updated on September 14, 2026.

Other flights from Dulles Intl

Browse through other flights departing from Dulles Intl. Flights are based on user searches made on Cheapflights and were last updated on September 14, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

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Explore flights to San Sebastian departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 14, 2026.

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Cheapest flights from Dulles Intl to San Sebastian
Explore the most affordable flight options available from Dulles Intl to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.

Best flights from Dulles Intl to San Sebastian
Discover carefully curated flight deals from Dulles Intl to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.

Last-minute flights from Dulles Intl to San Sebastian
Discover last-minute flight deals from Dulles Intl to San Sebastian. Data last updated September 14, 2026 and is based on user searches.

One-way flights from Dulles Intl to San Sebastian
Search for one-way flight options from Dulles Intl to San Sebastian. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.