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Cheap flights from San Sebastian to Washington, D.C. from $901

This is the cheapest round-trip 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 2/4. 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
9:30 pm - 4:30 pm
EAS
-
IAD
25h 00m1 stop
American Airlines Logo
5:46 pm - 8:40 am
IAD
-
EAS
32h 54m2 stops
$901American Airlines
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
9:30 pm - 12:36 pm
EAS
-
IAD
45h 06m2 stops
American Airlines Logo
5:46 pm - 8:40 am
IAD
-
EAS
32h 54m2 stops
$903American Airlines
Wed, Feb 4 - Sun, Feb 8
Multiple Airlines Logo
2:05 pm - 3:15 pm
EAS
-
IAD
31h 10m2 stops
Multiple Airlines Logo
6:30 pm - 1:30 pm
IAD
-
EAS
14h 00m2 stops
$905Multiple Airlines
Fri, Feb 20 - Mon, Mar 9
American Airlines Logo
9:30 pm - 4:30 pm
EAS
-
IAD
25h 00m1 stop
American Airlines Logo
6:00 pm - 8:50 pm
IAD
-
EAS
20h 50m1 stop
$913American Airlines
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
9:30 pm - 4:30 pm
EAS
-
IAD
25h 00m1 stop
American Airlines Logo
6:00 pm - 8:40 am
IAD
-
EAS
32h 40m1 stop
$922American Airlines
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
1:40 pm - 4:30 pm
EAS
-
IAD
32h 50m1 stop
American Airlines Logo
6:00 pm - 8:40 am
IAD
-
EAS
32h 40m1 stop
$924American Airlines
Wed, Feb 4 - Sun, Feb 8
Multiple Airlines Logo
9:20 am - 3:15 pm
EAS
-
IAD
35h 55m2 stops
Multiple Airlines Logo
6:00 pm - 1:00 pm
IAD
-
EAS
13h 00m1 stop
$946Multiple Airlines
Fri, Feb 20 - Thu, Mar 5
Multiple Airlines Logo
2:05 pm - 3:15 pm
EAS
-
IAD
31h 10m3 stops
Multiple Airlines Logo
6:30 pm - 1:30 pm
IAD
-
EAS
14h 00m2 stops
$1,024Multiple Airlines
Fri, Feb 20 - Mon, Mar 9
Multiple Airlines Logo
2:05 pm - 3:15 pm
EAS
-
IAD
31h 10m2 stops
Multiple Airlines Logo
8:30 pm - 1:30 pm
IAD
-
EAS
35h 00m3 stops
$1,054Multiple Airlines
Fri, Feb 20 - Thu, Mar 5
Multiple Airlines Logo
2:05 pm - 3:15 pm
EAS
-
IAD
31h 10m2 stops
Multiple Airlines Logo
5:30 pm - 1:30 pm
IAD
-
EAS
14h 00m2 stops
$1,134Multiple Airlines
Fri, Feb 20 - Thu, Mar 5

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
Feb 4
EAS9:30 pmSan Sebastián
25h 00m
1 stop
IAD4:30 pmWashington, D.C. Dulles Intl
Feb 8
IAD5:46 pmWashington, D.C. Dulles Intl
32h 54m
2 stops
EAS8:40 amSan Sebastián
$901
Find similar
American Airlines
Feb 4
EAS9:30 pmSan Sebastián
45h 06m
2 stops
IAD12:36 pmWashington, D.C. Dulles Intl
Feb 8
IAD5:46 pmWashington, D.C. Dulles Intl
32h 54m
2 stops
EAS8:40 amSan Sebastián
$903
Find similar
American Airlines
Feb 4
EAS9:30 pmSan Sebastián
25h 00m
1 stop
IAD4:30 pmWashington, D.C. Dulles Intl
Feb 8
IAD6:00 pmWashington, D.C. Dulles Intl
20h 50m
1 stop
EAS8:50 pmSan Sebastián
$913
Find similar

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 December 23, 2025.
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

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 2/4

9:30 pm-4:30 pm

1 stop25h 00m

Washington, D.C. Dulles Intl

Sun 2/8

5:46 pm-8:40 am

2 stops32h 54m

$901

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 2/4

9:30 pm-12:36 pm

2 stops45h 06m

Washington, D.C. Dulles Intl

Sun 2/8

5:46 pm-8:40 am

2 stops32h 54m

$903

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Fri 2/20

2:05 pm-3:15 pm

2 stops31h 10m

Washington, D.C. Dulles Intl

Mon 3/9

6:30 pm-1:30 pm

2 stops14h 00m

$905

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 2/4

9:30 pm-4:30 pm

1 stop25h 00m

Washington, D.C. Dulles Intl

Sun 2/8

6:00 pm-8:50 pm

1 stop20h 50m

$913

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 2/4

9:30 pm-4:30 pm

1 stop25h 00m

Washington, D.C. Dulles Intl

Sun 2/8

6:00 pm-8:40 am

1 stop32h 40m

$922

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 2/4

1:40 pm-4:30 pm

1 stop32h 50m

Washington, D.C. Dulles Intl

Sun 2/8

6:00 pm-8:40 am

1 stop32h 40m

$924

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Fri 2/20

9:20 am-3:15 pm

2 stops35h 55m

Washington, D.C. Dulles Intl

Thu 3/5

6:00 pm-1:00 pm

1 stop13h 00m

$946

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Fri 2/20

2:05 pm-3:15 pm

3 stops31h 10m

Washington, D.C. Dulles Intl

Mon 3/9

6:30 pm-1:30 pm

2 stops14h 00m

$1,024

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Fri 2/20

2:05 pm-3:15 pm

2 stops31h 10m

Washington, D.C. Dulles Intl

Thu 3/5

8:30 pm-1:30 pm

3 stops35h 00m

$1,054

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Fri 2/20

2:05 pm-3:15 pm

2 stops31h 10m

Washington, D.C. Dulles Intl

Thu 3/5

5:30 pm-1:30 pm

2 stops14h 00m

$1,134

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

50h 05m

Direct flights

None
The fastest flight from San Sebastian to Washington, D.C. Dulles Intl Airport takes 50h 05m
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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  • 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 50h 05m.

  • 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.

  • How do I get Price Alerts for flights from San Sebastian to Washington, D.C. Dulles Intl Airport?

    Confirm your travel details to search for the latest offers for flights from San Sebastian to Washington, D.C. Dulles Intl Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from San Sebastian to Washington, D.C. Dulles Intl Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Harpers Ferry
Gaithersburg
Reston
Manassas
Sterling
Fairfax

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.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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