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Cheap flights from San Sebastian to Washington, D.C. from $510

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 10/27. 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
1 adult, Economy, 0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
2:05 pm - 3:35 pm
EAS
-
IAD
31h 30m
2 stops
Iberia Logo
9:45 pm - 1:00 pm
IAD
-
EAS
33h 15m
2 stops
$873Iberia
Thu, Nov 5 - Sun, Nov 8
Iberia Logo
2:05 pm - 7:55 pm
EAS
-
IAD
35h 50m
2 stops
Iberia Logo
9:45 pm - 8:40 am
IAD
-
EAS
28h 55m
2 stops
$874Iberia
Thu, Nov 5 - Sun, Nov 8
Iberia Logo
9:20 am - 6:55 pm
EAS
-
IAD
15h 35m
1 stop
Iberia Logo
10:25 pm - 8:20 am
IAD
-
EAS
27h 55m
2 stops
$930Iberia
Thu, Aug 6 - Mon, Oct 5
Iberia Logo
9:30 pm - 6:55 pm
EAS
-
IAD
27h 25m
1 stop
Iberia Logo
10:25 pm - 8:20 am
IAD
-
EAS
27h 55m
2 stops
$941Iberia
Wed, Aug 5 - Wed, Oct 7
Iberia Logo
9:20 am - 6:55 pm
EAS
-
IAD
15h 35m
1 stop
Iberia Logo
10:25 pm - 8:20 am
IAD
-
EAS
27h 55m
2 stops
$948Iberia
Thu, Aug 6 - Sun, Oct 4
Iberia Logo
9:20 am - 6:55 pm
EAS
-
IAD
15h 35m
1 stop
Iberia Logo
5:45 pm - 8:50 pm
IAD
-
EAS
21h 05m
2 stops
$954Iberia
Thu, Aug 6 - Thu, Oct 8
Iberia Logo
9:20 am - 6:55 pm
EAS
-
IAD
15h 35m
1 stop
Iberia Logo
10:25 pm - 8:20 am
IAD
-
EAS
27h 55m
2 stops
$956Iberia
Thu, Aug 6 - Sat, Oct 10
Iberia Logo
9:30 pm - 3:30 pm
EAS
-
IAD
24h 00m
1 stop
Iberia Logo
10:25 pm - 8:20 am
IAD
-
EAS
27h 55m
2 stops
$959Iberia
Fri, Aug 7 - Mon, Oct 5
Iberia Logo
9:30 pm - 6:55 pm
EAS
-
IAD
27h 25m
1 stop
Iberia Logo
5:45 pm - 8:50 pm
IAD
-
EAS
21h 05m
2 stops
$965Iberia
Wed, Aug 5 - Thu, Oct 8
Iberia Logo
9:30 pm - 6:55 pm
EAS
-
IAD
27h 25m
1 stop
Iberia Logo
10:25 pm - 8:20 am
IAD
-
EAS
27h 55m
2 stops
$967Iberia
Wed, Aug 5 - Sat, Oct 10

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
Nov 5
EAS9:30 pmSan Sebastián
24h 50m
1 stop
IAD4:20 pmWashington, D.C. Dulles Intl
Nov 8
IAD6:20 pmWashington, D.C. Dulles Intl
32h 20m
2 stops
EAS8:40 amSan Sebastián
$862
Iberia
Nov 5
EAS2:05 pmSan Sebastián
31h 30m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
Nov 8
IAD9:45 pmWashington, D.C. Dulles Intl
33h 15m
2 stops
EAS1:00 pmSan Sebastián
$873
Iberia
Nov 5
EAS2:05 pmSan Sebastián
35h 50m
2 stops
IAD7:55 pmWashington, D.C. Dulles Intl
Nov 8
IAD9:45 pmWashington, D.C. Dulles Intl
28h 55m
2 stops
EAS8:40 amSan Sebastián
$874

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
Aug 10
EAS6:00 pmSan Sebastián
31h 40m
1 stop
IAD7:40 pmWashington, D.C. Dulles Intl
Oct 8
IAD5:45 pmWashington, D.C. Dulles Intl
14h 55m
1 stop
EAS2:40 pmSan Sebastián
$1,042
British Airways
Aug 6
EAS1:40 pmSan Sebastián
11h 15m
1 stop
IAD6:55 pmWashington, D.C. Dulles Intl
Oct 8
IAD5:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
EAS1:00 pmSan Sebastián
$1,045
British Airways
Aug 7
EAS9:30 pmSan Sebastián
24h 00m
1 stop
IAD3:30 pmWashington, D.C. Dulles Intl
Oct 8
IAD5:00 pmWashington, D.C. Dulles Intl
14h 00m
1 stop
EAS1:00 pmSan Sebastián
$1,097

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 June 6, 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

Thu 11/5

2:05 pm-3:35 pm

2 stops31h 30m

Washington, D.C. Dulles Intl

Sun 11/8

9:45 pm-1:00 pm

2 stops33h 15m

$873

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 11/5

2:05 pm-7:55 pm

2 stops35h 50m

Washington, D.C. Dulles Intl

Sun 11/8

9:45 pm-8:40 am

2 stops28h 55m

$874

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 8/6

9:20 am-6:55 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Mon 10/5

10:25 pm-8:20 am

2 stops27h 55m

$930

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 8/5

9:30 pm-6:55 pm

1 stop27h 25m

Washington, D.C. Dulles Intl

Wed 10/7

10:25 pm-8:20 am

2 stops27h 55m

$941

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 8/6

9:20 am-6:55 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Sun 10/4

10:25 pm-8:20 am

2 stops27h 55m

$948
Quickest round-trip

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 8/6

9:20 am-6:55 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Thu 10/8

5:45 pm-8:50 pm

2 stops21h 05m

$954

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 8/6

9:20 am-6:55 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Sat 10/10

10:25 pm-8:20 am

2 stops27h 55m

$956

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Fri 8/7

9:30 pm-3:30 pm

1 stop24h 00m

Washington, D.C. Dulles Intl

Mon 10/5

10:25 pm-8:20 am

2 stops27h 55m

$959

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 8/5

9:30 pm-6:55 pm

1 stop27h 25m

Washington, D.C. Dulles Intl

Thu 10/8

5:45 pm-8:50 pm

2 stops21h 05m

$965

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Wed 8/5

9:30 pm-6:55 pm

1 stop27h 25m

Washington, D.C. Dulles Intl

Sat 10/10

10:25 pm-8:20 am

2 stops27h 55m

$967

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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?

British Airways, 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

Fastest flight time

24h 00m

Direct flights

None
The fastest flight from San Sebastian to Washington, D.C. Dulles Intl Airport takes 24h 00m
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.
Search flight deals

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 24h 00m.

  • 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
Gaithersburg
Fredericksburg
Colonial Beach
Silver Spring
Rockville
Towson
Linthicum Heights
Manassas
Sterling
Tysons
Springfield
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.

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