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Cheap flights from San Sebastian to Washington, D.C. from $471

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Sebastian to Washington, D.C. departing on 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
9:20 am - 12:39 pm
EAS
-
IAD
33h 19m
2 stops
American Airlines Logo
8:25 pm - 1:00 pm
IAD
-
EAS
34h 35m
2 stops
$1,041American Airlines
Wed, Oct 14 - Sun, Oct 18
American Airlines Logo
1:40 pm - 3:30 pm
EAS
-
IAD
31h 50m
1 stop
American Airlines Logo
5:41 pm - 1:00 pm
IAD
-
EAS
37h 19m
2 stops
$1,050American Airlines
Wed, Oct 14 - Sun, Oct 18
American Airlines Logo
1:40 pm - 3:30 pm
EAS
-
IAD
31h 50m
1 stop
American Airlines Logo
8:25 pm - 8:40 am
IAD
-
EAS
30h 15m
2 stops
$1,052American Airlines
Wed, Oct 14 - Sun, Oct 18
American Airlines Logo
1:40 pm - 5:25 pm
EAS
-
IAD
33h 45m
2 stops
American Airlines Logo
8:25 pm - 8:40 am
IAD
-
EAS
30h 15m
2 stops
$1,060American Airlines
Wed, Oct 14 - Sun, Oct 18
American Airlines Logo
1:40 pm - 5:25 pm
EAS
-
IAD
33h 45m
2 stops
American Airlines Logo
8:25 pm - 1:00 pm
IAD
-
EAS
34h 35m
2 stops
$1,061American Airlines
Wed, Oct 14 - Sun, Oct 18
American Airlines Logo
1:40 pm - 3:30 pm
EAS
-
IAD
31h 50m
1 stop
American Airlines Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
$1,062American Airlines
Wed, Oct 14 - Sun, Oct 18
American Airlines Logo
1:40 pm - 3:30 pm
EAS
-
IAD
31h 50m
1 stop
American Airlines Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
$1,064American Airlines
Wed, Oct 14 - Sun, Oct 18
British Airways Logo
1:40 pm - 3:30 pm
EAS
-
IAD
31h 50m
1 stop
British Airways Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
$1,074British Airways
Wed, Oct 14 - Sun, Oct 18
Iberia Logo
9:30 pm - 3:30 pm
EAS
-
IAD
24h 00m
1 stop
Iberia Logo
10:25 pm - 8:40 am
IAD
-
EAS
28h 15m
2 stops
$1,075Iberia
Wed, Oct 14 - Sun, Oct 18
British Airways Logo
9:30 pm - 3:30 pm
EAS
-
IAD
24h 00m
1 stop
British Airways Logo
5:00 pm - 1:00 pm
IAD
-
EAS
14h 00m
1 stop
$1,076British Airways
Wed, Oct 14 - Sun, Oct 18

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

Our best American Airlines deals on San Sebastian to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Oct 14
EAS9:20 amSan Sebastián
33h 19m
2 stops
IAD12:39 pmWashington, D.C. Dulles Intl
Oct 18
IAD8:25 pmWashington, D.C. Dulles Intl
34h 35m
2 stops
EAS1:00 pmSan Sebastián
$1,041
American Airlines
Oct 14
EAS1:40 pmSan Sebastián
31h 50m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
Oct 18
IAD5:41 pmWashington, D.C. Dulles Intl
37h 19m
2 stops
EAS1:00 pmSan Sebastián
$1,050
American Airlines
Oct 14
EAS1:40 pmSan Sebastián
31h 50m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
Oct 18
IAD8:25 pmWashington, D.C. Dulles Intl
30h 15m
2 stops
EAS8:40 amSan Sebastián
$1,052

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

Our best British Airways deals on San Sebastian to Washington, D.C. Dulles Intl Airport flight tickets
British Airways
Oct 14
EAS1:40 pmSan Sebastián
31h 50m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
Oct 18
IAD5:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
EAS1:00 pmSan Sebastián
$1,074
British Airways
Oct 14
EAS9:30 pmSan Sebastián
24h 00m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
Oct 18
IAD5:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
EAS1:00 pmSan Sebastián
$1,076
British Airways
Oct 14
EAS9:30 pmSan Sebastián
27h 54m
2 stops
IAD7:24 pmWashington, D.C. Dulles Intl
Oct 18
IAD5:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
EAS1:00 pmSan Sebastián
$1,082

momondo Fare Finder

 
Customize your flight search to find flights from San Sebastian to Washington, D.C. Dulles Intl Airport 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 April 20, 2026.
Use the filters below to find and compare flights from San Sebastian to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

9:20 am-12:39 pm

2 stops33h 19m

Washington, D.C. Dulles Intl

Sun 10/18

8:25 pm-1:00 pm

2 stops34h 35m

$1,041

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

1:40 pm-3:30 pm

1 stop31h 50m

Washington, D.C. Dulles Intl

Sun 10/18

5:41 pm-1:00 pm

2 stops37h 19m

$1,050

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

1:40 pm-3:30 pm

1 stop31h 50m

Washington, D.C. Dulles Intl

Sun 10/18

8:25 pm-8:40 am

2 stops30h 15m

$1,052

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

1:40 pm-5:25 pm

2 stops33h 45m

Washington, D.C. Dulles Intl

Sun 10/18

8:25 pm-8:40 am

2 stops30h 15m

$1,060

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

1:40 pm-5:25 pm

2 stops33h 45m

Washington, D.C. Dulles Intl

Sun 10/18

8:25 pm-1:00 pm

2 stops34h 35m

$1,061

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

1:40 pm-3:30 pm

1 stop31h 50m

Washington, D.C. Dulles Intl

Sun 10/18

5:00 pm-1:00 pm

1 stop14h 00m

$1,062

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

1:40 pm-3:30 pm

1 stop31h 50m

Washington, D.C. Dulles Intl

Sun 10/18

5:00 pm-1:00 pm

1 stop14h 00m

$1,064

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

1:40 pm-3:30 pm

1 stop31h 50m

Washington, D.C. Dulles Intl

Sun 10/18

5:00 pm-1:00 pm

1 stop14h 00m

$1,074

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

9:30 pm-3:30 pm

1 stop24h 00m

Washington, D.C. Dulles Intl

Sun 10/18

10:25 pm-8:40 am

2 stops28h 15m

$1,075
Quickest round-trip

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 10/14

9:30 pm-3:30 pm

1 stop24h 00m

Washington, D.C. Dulles Intl

Sun 10/18

5:00 pm-1:00 pm

1 stop14h 00m

$1,076

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 Washington, D.C. from

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

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

Iberia is the most popular carrier operating from San Sebastián to Washington, D.C. Dulles Intl

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

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

Cheap San Sebastian to Washington, D.C. Dulles Intl Airport (EAS to IAD) flight deals and tips

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

Fastest flight time

31h 50m

Direct flights

None
The fastest flight from San Sebastian to Washington, D.C. Dulles Intl Airport takes 31h 50m
There are no direct flights from San Sebastian to Washington, D.C. Dulles Intl Airport. There are no popular flight routes from San Sebastian to Washington, D.C. Dulles Intl Airport.
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Frequently asked questions about flying from San Sebastian to Washington, D.C. Dulles Intl Airport

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

    The distance between San Sebastián and Washington, D.C. Dulles Intl is about 3799.5 mi. A reasonable flight in good conditions will take 31h 50m.

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

    Prices for flights from San Sebastián Airport to Washington, D.C. Dulles Intl Airport refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Sebastián Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Fredericksburg
Silver Spring
Rockville
Manassas
Sterling
Linthicum Heights
Tysons
Bethesda
Springfield

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Sebastian to Washington, D.C. for you.

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

Flights from San Sebastian to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential San Sebastian to Washington, D.C. 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 San Sebastian to Washington, D.C. right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Sebastian to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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