How long does it take to fly to San Sebastian?

On average, it takes 13h 40m to fly from Washington, D.C. to San Sebastian if you fly out of Washington, D.C. (the most popular airport in Washington, D.C.) and into Bilbao (the most popular airport in San Sebastian). If you’re flying out of Baltimore and into Bilbao, then the flight time is around 13h 53m.

What airlines fly to San Sebastian?

Iberia, United Airlines and Lufthansa are the top three most popular airlines that fly to San Sebastian from Washington, D.C. according to our data. Iberia is the first choice among our users, with 32% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 4 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington, D.C. to San Sebastián Airport?

Prices for flights from Washington, D.C. to San Sebastián Airport were last updated today.

How many operators does momondo search for flights from Washington, D.C. to San Sebastián Airport?

There is 1 operator available for flights from Washington, D.C. to San Sebastián Airport as of December 2025.

How old do you have to be to fly from Washington, D.C. to San Sebastián Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to San Sebastián Airport.

What documentation or ID do you need to fly to San Sebastián Airport?

The travel and health documents you'll need for your trip to San Sebastián Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Sebastián Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$320 Cheap Flights from Washington, D.C. to San Sebastian in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:35 pm - 8:40 am

DCA

EAS

13h 05m2 stops

9:20 am - 10:03 pm

EAS

DCA

18h 43m2 stops

$572Multiple Airlines

Sun, Jan 11 - Tue, Jan 27

9:45 pm - 8:40 am

IAD

EAS

28h 55m2 stops

9:30 pm - 7:55 pm

EAS

IAD

28h 25m2 stops

$593Multiple Airlines

Sun, Jan 11 - Tue, Jan 27

6:00 pm - 8:40 am

IAD

EAS

32h 40m1 stop

9:20 am - 4:30 pm

EAS

IAD

13h 10m1 stop

$596Iberia

Sun, Jan 11 - Tue, Jan 27

6:00 pm - 8:40 am

IAD

EAS

32h 40m1 stop

9:30 pm - 7:55 pm

EAS

IAD

28h 25m2 stops

$604Multiple Airlines

Sun, Jan 11 - Tue, Jan 27

6:00 pm - 8:50 pm

IAD

EAS

20h 50m1 stop

9:20 am - 4:30 pm

EAS

IAD

13h 10m1 stop

$618Iberia

Thu, Jan 29 - Thu, Feb 5

1:08 pm - 8:40 am

IAD

EAS

13h 32m2 stops

9:20 am - 4:30 pm

EAS

IAD

13h 10m1 stop

$622American Airlines

Thu, Jan 29 - Thu, Feb 5

1:35 pm - 8:40 am

DCA

EAS

13h 05m2 stops

9:20 am - 10:37 pm

EAS

DCA

19h 17m2 stops

$632American Airlines

Thu, Jan 29 - Thu, Feb 5

11:13 am - 8:40 am

BWI

EAS

15h 27m2 stops

9:20 am - 9:18 pm

EAS

BWI

17h 58m2 stops

$775American Airlines

Sun, Jan 11 - Tue, Jan 27

5:30 pm - 8:50 pm

DCA

EAS

21h 20m2 stops

9:20 am - 10:55 pm

EAS

DCA

19h 35m2 stops

$781Iberia

Fri, Jan 30 - Fri, Feb 6

8:35 pm - 8:40 am

BWI

EAS

30h 05m2 stops

9:30 pm - 6:45 pm

EAS

BWI

27h 15m2 stops

$888Iberia

Fri, Jan 30 - Fri, Feb 6

American Airlines flights from Washington, D.C. to San Sebastian

Our best American Airlines deals on Washington, D.C. to San Sebastian flight tickets

American Airlines

Jan 29

IAD1:08 pmWashington, D.C. Dulles Intl

13h 32m

2 stops

EAS8:40 amSan Sebastián

Feb 5

EAS9:20 amSan Sebastián

13h 10m

1 stop

IAD4:30 pmWashington, D.C. Dulles Intl

$622

Find similar

American Airlines

Jan 29

DCA1:35 pmWashington, D.C. Reagan-National

13h 05m

2 stops

EAS8:40 amSan Sebastián

Feb 5

EAS9:20 amSan Sebastián

19h 17m

2 stops

DCA10:37 pmWashington, D.C. Reagan-National

$632

Find similar

American Airlines

Jan 11

BWI11:13 amBaltimore/Washington

15h 27m

2 stops

EAS8:40 amSan Sebastián

Jan 27

EAS9:20 amSan Sebastián

17h 58m

2 stops

BWI9:18 pmBaltimore/Washington

$775

Find similar

Iberia flights from Washington, D.C. to San Sebastian

Our best Iberia deals on Washington, D.C. to San Sebastian flight tickets

Iberia

Jan 11

IAD6:00 pmWashington, D.C. Dulles Intl

32h 40m

1 stop

EAS8:40 amSan Sebastián

Jan 27

EAS9:20 amSan Sebastián

13h 10m

1 stop

IAD4:30 pmWashington, D.C. Dulles Intl

$596

Find similar

Iberia

Jan 29

IAD6:00 pmWashington, D.C. Dulles Intl

20h 50m

1 stop

EAS8:50 pmSan Sebastián

Feb 5

EAS9:20 amSan Sebastián

13h 10m

1 stop

IAD4:30 pmWashington, D.C. Dulles Intl

$618

Find similar

Iberia

Jan 30

DCA5:30 pmWashington, D.C. Reagan-National

21h 20m

2 stops

EAS8:50 pmSan Sebastián

Feb 6

EAS9:20 amSan Sebastián

19h 35m

2 stops

DCA10:55 pmWashington, D.C. Reagan-National

$781

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Sun 1/11

1:35 pm-8:40 am

2 stops13h 05m

San Sebastián

Tue 1/27

9:20 am-10:03 pm

2 stops18h 43m

$572

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Sun 1/11

9:45 pm-8:40 am

2 stops28h 55m

San Sebastián

Tue 1/27

9:30 pm-7:55 pm

2 stops28h 25m

$593

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Sun 1/11

6:00 pm-8:40 am

1 stop32h 40m

San Sebastián

Tue 1/27

9:20 am-4:30 pm

1 stop13h 10m

$596

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Sun 1/11

6:00 pm-8:40 am

1 stop32h 40m

San Sebastián

Tue 1/27

9:30 pm-7:55 pm

2 stops28h 25m

$604

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Thu 1/29

6:00 pm-8:50 pm

1 stop20h 50m

San Sebastián

Thu 2/5

9:20 am-4:30 pm

1 stop13h 10m

$618

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Thu 1/29

1:08 pm-8:40 am

2 stops13h 32m

San Sebastián

Thu 2/5

9:20 am-4:30 pm

1 stop13h 10m

$622

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Thu 1/29

1:35 pm-8:40 am

2 stops13h 05m

San Sebastián

Thu 2/5

9:20 am-10:37 pm

2 stops19h 17m

$632

BaltimoreSan Sebastian

BWI - EAS

BWIEAS

Baltimore/Washington

Sun 1/11

11:13 am-8:40 am

2 stops15h 27m

San Sebastián

Tue 1/27

9:20 am-9:18 pm

2 stops17h 58m

$775

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Fri 1/30

5:30 pm-8:50 pm

2 stops21h 20m

San Sebastián

Fri 2/6

9:20 am-10:55 pm

2 stops19h 35m

$781

BaltimoreSan Sebastian

BWI - EAS

BWIEAS

Baltimore/Washington

Fri 1/30

8:35 pm-8:40 am

2 stops30h 05m

San Sebastián

Fri 2/6

9:30 pm-6:45 pm

2 stops27h 15m

$888

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to San Sebastian

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

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Other information

What is the cheapest day to depart on your flight to San Sebastian?

On average, the least expensive day to fly to San Sebastian from Washington, D.C. is on a Thursday. momondo users have found tickets for Thursday departures for as low as $702. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to San Sebastian for around $1,191.

What is the cheapest time of day to depart on your flight to San Sebastian?

Flying to San Sebastian from Washington, D.C. in the evening is the least expensive time of day to depart. momondo users have found prices as low as $957 when looking at flights departing in the evening. Flights to San Sebastian are more costly in the afternoon, with an average ticket price of $1,087. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Washington, D.C. to San Sebastian

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to San Sebastian according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to San Sebastian (WAS to EAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to San Sebastian

Fastest flight time	13h 05m
Direct flights	None

The fastest flight from Washington, D.C. to San Sebastian takes 13h 05m

There are no direct flights from Washington, D.C. to San Sebastian. There are no popular flight routes from Washington, D.C. to San Sebastian.

Search flight deals

How far is Washington, D.C. to San Sebastián by plane?
The straight-line distance from Washington, D.C. to San Sebastián is 3781.9 mi. 13h 05m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to San Sebastián Airport?
Prices for flights from Washington, D.C. to San Sebastián Airport were last updated today.
How many operators does momondo search for flights from Washington, D.C. to San Sebastián Airport?
There is 1 operator available for flights from Washington, D.C. to San Sebastián Airport as of December 2025.
How old do you have to be to fly from Washington, D.C. to San Sebastián Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to San Sebastián Airport.
What documentation or ID do you need to fly to San Sebastián Airport?
The travel and health documents you'll need for your trip to San Sebastián Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Sebastián Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Washington, D.C. to San Sebastian?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. to San Sebastian is Iberia (51% of total bookings). The next most popular airline is American Airlines (49%).

Best airlines flying from Washington, D.C. to San Sebastian

Compare and see reviews for airlines that fly from Washington, D.C. to San Sebastian with momondo

Airline	Rating	Free Cancellation	Price
Iberia	PriceFrom $561	Free Cancellation	Rating 7.0 3,051 reviews		Search Iberia flights

Irun

Hondarribia

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to San Sebastian?

Finding the right flight to San Sebastian from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Sebastian quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to San Sebastian with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to San Sebastian flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to San Sebastian?

momondo provides multiple filters to help you find the best flight to San Sebastian from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to San Sebastian right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Sebastian from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Sebastian trip

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Cheap flights from Washington, D.C. to San Sebastian from $320

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to San Sebastian departing on 1/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Washington, D.C. to San Sebastian

Our best American Airlines deals on Washington, D.C. to San Sebastian flight tickets

Iberia flights from Washington, D.C. to San Sebastian

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How to get the cheapest flight ticket from Washington, D.C. to San Sebastian

What is the cheapest day to depart on your flight to San Sebastian?

What is the cheapest time of day to depart on your flight to San Sebastian?

What airlines fly to San Sebastian?

How long does it take to fly to San Sebastian?

When to book flights from Washington, D.C. to San Sebastian

Cheap Washington, D.C. to San Sebastian (WAS to EAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to San Sebastian

Fastest flight time

Direct flights

How far is Washington, D.C. to San Sebastián by plane?

When did momondo last update prices for flights from Washington, D.C. to San Sebastián Airport?

How many operators does momondo search for flights from Washington, D.C. to San Sebastián Airport?

How old do you have to be to fly from Washington, D.C. to San Sebastián Airport?

What documentation or ID do you need to fly to San Sebastián Airport?

What is the most popular airline from Washington, D.C. to San Sebastian?

Best airlines flying from Washington, D.C. to San Sebastian

Compare and see reviews for airlines that fly from Washington, D.C. to San Sebastian with momondo

Traveling to a place near San Sebastian?

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to San Sebastian?

Can I find flights from Washington, D.C. to San Sebastian with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to San Sebastian?

I’m not ready to book a flight from Washington, D.C. to San Sebastian right now. Can momondo alert me if prices change?

An easier way to manage your San Sebastian trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Spain

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