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Cheap flights from Washington, D.C. Dulles Intl Airport to San Sebastian from $891

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to San Sebastian departing on 8/23. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:08 am - 8:40 am
IAD
-
EAS
21h 32m
2 stops
American Airlines Logo
9:20 am - 3:30 pm
EAS
-
IAD
12h 10m
1 stop
$891American Airlines
dom., ago. 23 - vie., ago. 28
Iberia Logo
5:00 pm - 8:50 pm
IAD
-
EAS
21h 50m
1 stop
Iberia Logo
9:20 am - 3:30 pm
EAS
-
IAD
12h 10m
1 stop
$895Iberia
dom., ago. 23 - vie., ago. 28
Iberia Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
Iberia Logo
1:40 pm - 3:30 pm
EAS
-
IAD
31h 50m
1 stop
$907Iberia
vie., oct. 16 - mar., oct. 20
Iberia Logo
5:45 pm - 8:40 am
IAD
-
EAS
32h 55m
2 stops
Iberia Logo
9:30 pm - 3:30 pm
EAS
-
IAD
24h 00m
1 stop
$910Iberia
vie., oct. 16 - mar., oct. 20
Iberia Logo
5:00 pm - 8:50 pm
IAD
-
EAS
21h 50m
1 stop
Iberia Logo
9:20 am - 3:30 pm
EAS
-
IAD
12h 10m
1 stop
$916Iberia
vie., oct. 9 - mar., oct. 13
Iberia Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
Iberia Logo
5:55 pm - 3:55 pm
EAS
-
IAD
52h 00m
2 stops
$924Iberia
vie., oct. 16 - mar., oct. 20
Iberia Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
Iberia Logo
5:55 pm - 8:20 pm
EAS
-
IAD
56h 25m
2 stops
$925Iberia
vie., oct. 16 - mar., oct. 20
Iberia Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
Iberia Logo
9:30 pm - 3:30 pm
EAS
-
IAD
24h 00m
1 stop
$926Iberia
sáb., oct. 10 - dom., oct. 18
Iberia Logo
6:41 pm - 8:40 am
IAD
-
EAS
55h 59m
2 stops
Iberia Logo
9:30 pm - 3:30 pm
EAS
-
IAD
24h 00m
1 stop
$928Iberia
sáb., oct. 10 - dom., oct. 18
Iberia Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
Iberia Logo
1:40 pm - 3:30 pm
EAS
-
IAD
31h 50m
1 stop
$935Iberia
vie., oct. 16 - mar., oct. 20

Iberia flights from Washington, D.C. Dulles Intl Airport to San Sebastian

Our best Iberia deals on Washington, D.C. Dulles Intl Airport to San Sebastian flight tickets
Iberia
Aug 23
IAD5:00 pmWashington, D.C. Dulles Intl
21h 50m
1 stop
EAS8:50 pmSan Sebastián
Aug 28
EAS9:20 amSan Sebastián
12h 10m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
$895
Iberia
Oct 16
IAD5:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
EAS1:00 pmSan Sebastián
Oct 20
EAS1:40 pmSan Sebastián
31h 50m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
$907
Iberia
Oct 16
IAD5:45 pmWashington, D.C. Dulles Intl
32h 55m
2 stops
EAS8:40 amSan Sebastián
Oct 20
EAS9:30 pmSan Sebastián
24h 00m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
$910

British Airways flights from Washington, D.C. Dulles Intl Airport to San Sebastian

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to San Sebastian flight tickets
British Airways
Sep 16
IAD2:06 pmWashington, D.C. Dulles Intl
16h 54m
2 stops
EAS1:00 pmSan Sebastián
Sep 22
EAS9:30 pmSan Sebastián
24h 00m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
$970
British Airways
Sep 16
IAD10:25 pmWashington, D.C. Dulles Intl
32h 35m
2 stops
EAS1:00 pmSan Sebastián
Sep 22
EAS9:30 pmSan Sebastián
28h 10m
2 stops
IAD7:40 pmWashington, D.C. Dulles Intl
$1,162
British Airways
Jun 29
IAD5:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
EAS1:00 pmSan Sebastián
Jul 8
EAS9:30 pmSan Sebastián
28h 10m
2 stops
IAD7:40 pmWashington, D.C. Dulles Intl
$1,178

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to San Sebastian that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated mayo 14, 2026.
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
Quickest round-trip

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

dom. 8/23

5:08 am-8:40 am

2 stops21h 32m

San Sebastián

vie. 8/28

9:20 am-3:30 pm

1 stop12h 10m

$891

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

dom. 8/23

5:00 pm-8:50 pm

1 stop21h 50m

San Sebastián

vie. 8/28

9:20 am-3:30 pm

1 stop12h 10m

$895

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

vie. 10/16

5:00 pm-1:00 pm

1 stop14h 00m

San Sebastián

mar. 10/20

1:40 pm-3:30 pm

1 stop31h 50m

$907

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

vie. 10/16

5:45 pm-8:40 am

2 stops32h 55m

San Sebastián

mar. 10/20

9:30 pm-3:30 pm

1 stop24h 00m

$910

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

vie. 10/9

5:00 pm-8:50 pm

1 stop21h 50m

San Sebastián

mar. 10/13

9:20 am-3:30 pm

1 stop12h 10m

$916

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

vie. 10/16

5:00 pm-1:00 pm

1 stop14h 00m

San Sebastián

mar. 10/20

5:55 pm-3:55 pm

2 stops52h 00m

$924

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

vie. 10/16

5:00 pm-1:00 pm

1 stop14h 00m

San Sebastián

mar. 10/20

5:55 pm-8:20 pm

2 stops56h 25m

$925

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

sáb. 10/10

5:00 pm-1:00 pm

1 stop14h 00m

San Sebastián

dom. 10/18

9:30 pm-3:30 pm

1 stop24h 00m

$926

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

sáb. 10/10

6:41 pm-8:40 am

2 stops55h 59m

San Sebastián

dom. 10/18

9:30 pm-3:30 pm

1 stop24h 00m

$928

Washington, D.C.San Sebastian

IAD - EAS

IADEAS

Washington, D.C. Dulles Intl

vie. 10/16

5:00 pm-1:00 pm

1 stop14h 00m

San Sebastián

mar. 10/20

1:40 pm-3:30 pm

1 stop31h 50m

$935

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to San Sebastian from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport 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

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

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

What airlines fly to San Sebastian?

Lufthansa, United Airlines and TAP AIR PORTUGAL are the top three most popular airlines that fly to San Sebastian from Washington, D.C. Dulles Intl Airport according to our data. Lufthansa is the first choice among our users, with 34% 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 to book flights from Washington, D.C. Dulles Intl Airport to San Sebastian

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to San Sebastian (IAD to EAS) flight deals and tips

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

Fastest flight time

14h 00m

Direct flights

None
The fastest flight from Washington, D.C. Dulles Intl Airport to San Sebastian takes 14h 00m
There are no direct flights from Washington, D.C. Dulles Intl Airport to San Sebastian. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to San Sebastian.
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Frequently asked questions about flying from Washington, D.C. Dulles Intl Airport to San Sebastian

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

    Washington, D.C. Dulles Intl and San Sebastián are 3799.5 mi apart from one another. A reasonable flight in good conditions will take 14h 00m.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to San Sebastián Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport 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.

Traveling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Irun
Hondarribia

Why use momondo?

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

It is quick and easy to find Washington, D.C. to San Sebastian flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Sebastian that suits you.

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?

Once all potential Washington, D.C. to San Sebastian flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to San Sebastian from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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