What is the cheapest airline that flies from Washington, D.C. to San Sebastián?

British Airways, Iberia, and American Airlines are the most popular carriers operating from Washington, D.C. to San Sebastián

What airlines fly to San Sebastian?

United Airlines, TAP AIR PORTUGAL and Lufthansa are the top three most popular airlines that fly to San Sebastian from Washington, D.C. according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 3 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to San Sebastian?

On average, it takes 13h 45m 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 14h 05m.

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 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.

$428 Cheap Flights from Washington, D.C. to San Sebastian in 2026

Q: What is the typical price of a round-trip flight between Washington, D.C. and San Sebastian?

Prices are currently high for flights on this route. Typical prices usually range from $904 to $704. The lowest price recently found on this route was $1,048.

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Find the cheapest flights from Washington, D.C. to San Sebastian

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 pm - 8:50 pm

IAD

EAS

18h 20m

1 stop

9:30 pm - 3:30 pm

EAS

IAD

24h 00m

1 stop

$1,048Iberia

Tue, Jul 14 - Tue, Jul 21

11:56 am - 8:40 am

DCA

EAS

14h 44m

2 stops

9:20 am - 10:19 pm

EAS

DCA

18h 59m

2 stops

$1,052American Airlines

Tue, Jul 14 - Tue, Jul 21

6:33 am - 8:40 am

IAD

EAS

20h 07m

2 stops

9:30 pm - 3:30 pm

EAS

IAD

24h 00m

1 stop

$1,053Multiple Airlines

Tue, Jul 14 - Tue, Jul 21

6:55 pm - 8:20 am

DCA

EAS

31h 25m

3 stops

8:55 am - 3:38 pm

EAS

DCA

36h 43m

3 stops

$1,103Multiple Airlines

Mon, Jun 15 - Tue, Jun 23

9:20 am - 8:40 am

IAD

EAS

17h 20m

2 stops

9:30 pm - 3:30 pm

EAS

IAD

24h 00m

1 stop

$1,144Multiple Airlines

Mon, Jun 15 - Tue, Jun 23

5:15 pm - 5:20 pm

IAD

EAS

18h 05m

3 stops

8:55 am - 7:01 pm

EAS

IAD

40h 06m

3 stops

$1,153Multiple Airlines

Mon, Jun 15 - Tue, Jun 23

4:20 pm - 5:20 pm

DCA

EAS

19h 00m

2 stops

8:55 am - 3:38 pm

EAS

DCA

36h 43m

3 stops

$1,155Multiple Airlines

Mon, Jun 15 - Tue, Jun 23

1:45 pm - 8:50 pm

DCA

EAS

25h 05m

2 stops

9:30 pm - 9:38 pm

EAS

DCA

30h 08m

2 stops

$1,193Iberia

Sat, Jul 4 - Sun, Jul 12

10:14 am - 8:50 pm

DCA

EAS

28h 36m

2 stops

9:30 pm - 8:55 pm

EAS

DCA

29h 25m

2 stops

$1,195British Airways

Mon, Jun 15 - Tue, Jun 23

7:20 pm - 4:55 pm

IAD

EAS

15h 35m

2 stops

9:30 pm - 12:13 am

EAS

IAD

32h 43m

2 stops

$1,209British Airways

Mon, Jun 15 - Tue, Jun 23

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

Jul 14

DCA11:56 amWashington, D.C. Reagan-National

14h 44m

2 stops

EAS8:40 amSan Sebastián

Jul 21

EAS9:20 amSan Sebastián

18h 59m

2 stops

DCA10:19 pmWashington, D.C. Reagan-National

$1,052

American Airlines

May 8

DCA1:25 pmWashington, D.C. Reagan-National

13h 15m

2 stops

EAS8:40 amSan Sebastián

May 14

EAS1:40 pmSan Sebastián

14h 49m

2 stops

DCA10:29 pmWashington, D.C. Reagan-National

$1,088

American Airlines

Jul 3

IAD1:08 pmWashington, D.C. Dulles Intl

13h 32m

2 stops

EAS8:40 amSan Sebastián

Jul 14

EAS9:20 amSan Sebastián

12h 10m

1 stop

IAD3:30 pmWashington, D.C. Dulles Intl

$1,203

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

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

Iberia

Jul 14

IAD8:30 pmWashington, D.C. Dulles Intl

18h 20m

1 stop

EAS8:50 pmSan Sebastián

Jul 21

EAS9:30 pmSan Sebastián

24h 00m

1 stop

IAD3:30 pmWashington, D.C. Dulles Intl

$1,048

Iberia

Jul 4

DCA1:45 pmWashington, D.C. Reagan-National

25h 05m

2 stops

EAS8:50 pmSan Sebastián

Jul 12

EAS9:30 pmSan Sebastián

30h 08m

2 stops

DCA9:38 pmWashington, D.C. Reagan-National

$1,193

Iberia

Jul 3

DCA5:22 pmWashington, D.C. Reagan-National

13h 38m

2 stops

EAS1:00 pmSan Sebastián

Jul 14

EAS9:20 amSan Sebastián

18h 18m

2 stops

DCA9:38 pmWashington, D.C. Reagan-National

$1,213

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

Cheapest round-trip

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Tue 7/14

8:30 pm-8:50 pm

1 stop18h 20m

San Sebastián

Tue 7/21

9:30 pm-3:30 pm

1 stop24h 00m

$1,048

Quickest round-trip

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Tue 7/14

11:56 am-8:40 am

2 stops14h 44m

San Sebastián

Tue 7/21

9:20 am-10:19 pm

2 stops18h 59m

$1,052

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Tue 7/14

6:33 am-8:40 am

2 stops20h 07m

San Sebastián

Tue 7/21

9:30 pm-3:30 pm

1 stop24h 00m

$1,053

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 6/15

6:55 pm-8:20 am

3 stops31h 25m

San Sebastián

Tue 6/23

8:55 am-3:38 pm

3 stops36h 43m

$1,103

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Mon 6/15

9:20 am-8:40 am

2 stops17h 20m

San Sebastián

Tue 6/23

9:30 pm-3:30 pm

1 stop24h 00m

$1,144

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Mon 6/15

5:15 pm-5:20 pm

3 stops18h 05m

San Sebastián

Tue 6/23

8:55 am-7:01 pm

3 stops40h 06m

$1,153

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 6/15

4:20 pm-5:20 pm

2 stops19h 00m

San Sebastián

Tue 6/23

8:55 am-3:38 pm

3 stops36h 43m

$1,155

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Sat 7/4

1:45 pm-8:50 pm

2 stops25h 05m

San Sebastián

Sun 7/12

9:30 pm-9:38 pm

2 stops30h 08m

$1,193

Washington, D.C.San Sebastian

DCA - EAS

DCAEAS

Washington, D.C. Reagan-National

Mon 6/15

10:14 am-8:50 pm

2 stops28h 36m

San Sebastián

Tue 6/23

9:30 pm-8:55 pm

2 stops29h 25m

$1,195

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

Mon 6/15

7:20 pm-4:55 pm

2 stops15h 35m

San Sebastián

Tue 6/23

9:30 pm-12:13 am

2 stops32h 43m

$1,209

Flights are sorted by cheapest round-trip flights first.

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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 typical price of a round-trip flight between Washington, D.C. and San Sebastian?

What is the cheapest month to fly to San Sebastian?

The month of December is, on average, the cheapest month to fly to San Sebastian from Washington, D.C., with most prices found around $0. If you are unable to visit San Sebastian during the month of December, then departing from Washington, D.C. during the month February is also very affordable. Most momondo users find prices during this month for around $0.

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 02m
Direct flights	None

The fastest flight from Washington, D.C. to San Sebastian takes 13h 02m

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.

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Frequently asked questions about flying from Washington, D.C. to San Sebastian

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 02m 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 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 (100% of total bookings).

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 $428

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 7/5. 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

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

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

What is the typical price of a round-trip flight between Washington, D.C. and San Sebastian?

What is the cheapest month to fly to San Sebastian?

What is the cheapest airline that flies from Washington, D.C. to San Sebastián?

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

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Frequently asked questions about flying from Washington, D.C. to San Sebastian

Traveling to a place near San Sebastian?

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List of cabin classes available on flights landing in San Sebastian. Availability may vary depending on flight origin and airline.

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