Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from San Sebastian to Washington, D.C. from $845

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 9/18. 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

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

Iberia Logo
9:30 pm - 3:35 pmEAS-IAD
24h 05m2 stops
Iberia Logo
6:00 pm - 8:50 pmIAD-EAS
20h 50m1 stop
$934Iberia
Find Deal
Tue, Dec 23 - Thu, Jan 1
Logo
9:30 pm - 3:15 pmEAS-IAD
47h 45m2 stops
Logo
5:30 pm - 8:50 pmIAD-EAS
21h 20m2 stops
$949
Find Deal
Thu, Dec 11 - Tue, Dec 16
Iberia Logo
1:40 pm - 3:35 pmEAS-IAD
31h 55m2 stops
Iberia Logo
6:20 pm - 8:40 amIAD-EAS
32h 20m2 stops
$953Iberia
Find Deal
Tue, Dec 23 - Tue, Jan 6
Iberia Logo
9:20 am - 7:55 pmEAS-IAD
16h 35m2 stops
Iberia Logo
6:00 pm - 8:50 pmIAD-EAS
20h 50m1 stop
$980Iberia
Find Deal
Wed, Dec 17 - Thu, Jan 1
Iberia Logo
9:20 am - 4:30 pmEAS-IAD
13h 10m1 stop
Iberia Logo
6:00 pm - 8:40 amIAD-EAS
32h 40m1 stop
$995Iberia
Find Deal
Thu, Dec 11 - Tue, Dec 16
Iberia Logo
9:20 am - 7:55 pmEAS-IAD
16h 35m2 stops
Iberia Logo
6:20 pm - 8:40 amIAD-EAS
32h 20m2 stops
$999Iberia
Find Deal
Wed, Dec 17 - Tue, Jan 6
Iberia Logo
9:30 pm - 3:35 pmEAS-IAD
24h 05m2 stops
Iberia Logo
6:00 pm - 8:50 pmIAD-EAS
20h 50m1 stop
$1,008Iberia
Find Deal
Tue, Dec 23 - Tue, Jan 6
American Airlines Logo
9:20 am - 7:28 pmEAS-IAD
16h 08m2 stops
American Airlines Logo
6:00 pm - 8:40 amIAD-EAS
32h 40m1 stop
$1,085American Airlines
Find Deal
Thu, Dec 11 - Tue, Dec 16
American Airlines Logo
9:20 am - 7:28 pmEAS-IAD
16h 08m2 stops
American Airlines Logo
10:45 am - 1:00 pmIAD-EAS
20h 15m2 stops
$1,260American Airlines
Find Deal
Wed, Dec 17 - Fri, Jan 2
British Airways Logo
1:40 pm - 7:55 pmEAS-IAD
36h 15m2 stops
British Airways Logo
2:00 pm - 8:50 pmIAD-EAS
24h 50m2 stops
$1,859British Airways
Find Deal
Wed, Dec 17 - Sat, Jan 3

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

Our best Iberia deals on San Sebastian to Washington, D.C. Dulles Intl Airport flight tickets
Iberia
Dec 23
EAS9:30 pmSan Sebastián
24h 05m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
Jan 1
IAD6:00 pmWashington, D.C. Dulles Intl
20h 50m
1 stop
EAS8:50 pmSan Sebastián
$934
Find similar
Iberia
Dec 23
EAS1:40 pmSan Sebastián
31h 55m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
Jan 6
IAD6:20 pmWashington, D.C. Dulles Intl
32h 20m
2 stops
EAS8:40 amSan Sebastián
$953
Find similar
Iberia
Dec 17
EAS9:20 amSan Sebastián
16h 35m
2 stops
IAD7:55 pmWashington, D.C. Dulles Intl
Jan 1
IAD6:00 pmWashington, D.C. Dulles Intl
20h 50m
1 stop
EAS8:50 pmSan Sebastián
$980
Find similar

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
Dec 11
EAS9:20 amSan Sebastián
16h 08m
2 stops
IAD7:28 pmWashington, D.C. Dulles Intl
Dec 16
IAD6:00 pmWashington, D.C. Dulles Intl
32h 40m
1 stop
EAS8:40 amSan Sebastián
$1,085
Find similar
American Airlines
Dec 17
EAS9:20 amSan Sebastián
16h 08m
2 stops
IAD7:28 pmWashington, D.C. Dulles Intl
Jan 2
IAD10:45 amWashington, D.C. Dulles Intl
20h 15m
2 stops
EAS1:00 pmSan Sebastián
$1,260
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 August 2, 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

Tue 12/23

9:30 pm-3:35 pm

2 stops24h 05m

Washington, D.C. Dulles Intl

Thu 1/1

6:00 pm-8:50 pm

1 stop20h 50m

$934

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 12/11

9:30 pm-3:15 pm

2 stops47h 45m

Washington, D.C. Dulles Intl

Tue 12/16

5:30 pm-8:50 pm

2 stops21h 20m

$949

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Tue 12/23

1:40 pm-3:35 pm

2 stops31h 55m

Washington, D.C. Dulles Intl

Tue 1/6

6:20 pm-8:40 am

2 stops32h 20m

$953

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 12/17

9:20 am-7:55 pm

2 stops16h 35m

Washington, D.C. Dulles Intl

Thu 1/1

6:00 pm-8:50 pm

1 stop20h 50m

$980

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 12/11

9:20 am-4:30 pm

1 stop13h 10m

Washington, D.C. Dulles Intl

Tue 12/16

6:00 pm-8:40 am

1 stop32h 40m

$995

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 12/17

9:20 am-7:55 pm

2 stops16h 35m

Washington, D.C. Dulles Intl

Tue 1/6

6:20 pm-8:40 am

2 stops32h 20m

$999

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Tue 12/23

9:30 pm-3:35 pm

2 stops24h 05m

Washington, D.C. Dulles Intl

Tue 1/6

6:00 pm-8:50 pm

1 stop20h 50m

$1,008

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 12/11

9:20 am-7:28 pm

2 stops16h 08m

Washington, D.C. Dulles Intl

Tue 12/16

6:00 pm-8:40 am

1 stop32h 40m

$1,085

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 12/17

9:20 am-7:28 pm

2 stops16h 08m

Washington, D.C. Dulles Intl

Fri 1/2

10:45 am-1:00 pm

2 stops20h 15m

$1,260

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 12/17

1:40 pm-7:55 pm

2 stops36h 15m

Washington, D.C. Dulles Intl

Sat 1/3

2:00 pm-8:50 pm

2 stops24h 50m

$1,859

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

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 and American Airlines are the most popular carriers 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

Best Price Found

$845

Fastest flight time

11h 40m

Direct flights

None
The best one-way flight to Washington, D.C. Dulles Intl Airport from San Sebastian in the past 72 hours is $845. The best round-trip flight deal from San Sebastian to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $934.
The fastest flight from San Sebastian to Washington, D.C. Dulles Intl Airport takes 11h 40m
There are no direct flights from San Sebastian to Washington, D.C. Dulles Intl Airport. Popular non-direct route for this connection is San Sebastián Airport - Washington, D.C. Dulles Intl Airport.
Search flight deals

  • 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 13h 10m.

  • 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
Gettysburg
Arlington
National Harbor
Winchester
Woodbridge
Laurel
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Harpers Ferry
Towson
Rockville
Colonial Beach
Gaithersburg
Fairfax
Reston
Glen Burnie

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

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 8/7
Thu 8/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.