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Dulles Intl

$412+ Cheap flights from San Sebastian (EAS) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/15. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — IAD
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from San Sebastian to Dulles Intl

Cheapest flights from San Sebastian to Dulles Intl
Explore the most affordable flight options available from San Sebastian to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Iberia deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:30 pm
EAS
-
IAD
1 stop24h 00m
Iberia
Mon 4/205:40 pm
IAD
-
EAS
2 stops17h 40m
Iberia
Deal found 1/25$855
This Expedia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/49:30 pm
EAS
-
IAD
2 stops28h 19m
Multiple Airlines
Thu 8/275:40 pm
IAD
-
EAS
1 stop15h 00m
Multiple Airlines
Deal found 1/27$975
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/24:55 pm
EAS
-
IAD
1 stop30h 30m
British Airways
Thu 8/277:15 pm
IAD
-
EAS
1 stop13h 25m
British Airways
Deal found 1/27$978
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:25 pm
EAS
-
IAD
2 stops30h 15m
British Airways
Sun 8/305:40 pm
IAD
-
EAS
1 stop17h 00m
British Airways
Deal found 1/27$995
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/24:55 pm
EAS
-
IAD
1 stop30h 30m
British Airways
Sun 8/305:40 pm
IAD
-
EAS
1 stop17h 00m
British Airways
Deal found 1/27$996
This Iberia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:30 pm
EAS
-
IAD
2 stops27h 40m
Iberia
Thu 8/275:40 pm
IAD
-
EAS
2 stops33h 00m
Iberia
Deal found 1/27$1,015
This Iberia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:30 pm
EAS
-
IAD
2 stops24h 15m
Iberia
Wed 8/265:40 pm
IAD
-
EAS
2 stops21h 10m
Iberia
Deal found 1/27$1,021
This Iberia deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:30 pm
EAS
-
IAD
2 stops24h 15m
Iberia
Sat 8/295:40 pm
IAD
-
EAS
2 stops33h 00m
Iberia
Deal found 1/27$1,024

Find flight deals from San Sebastian to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from San Sebastian (EAS) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 28, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$855
(Iberia)

One-way from

$412
(Trip.com)
Provider with most accurate pricing for San Sebastián-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for San Sebastián-Washington, D.C. Dulles Intl flights.
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From San Sebastián to Washington, D.C. Dulles Intl
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One-way flight from San Sebastián to Washington, D.C. Dulles Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Sebastian to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated January 28, 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

San Sebastian

Fly to

Dulles Intl

Route

Depart

Return

Price

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 4/16

9:30 pm-3:30 pm

1 stop24h 00m

Washington, D.C. Dulles Intl

Mon 4/20

5:40 pm-5:20 pm

2 stops17h 40m

$855

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Thu 4/16

1:40 pm-7:25 pm

2 stops35h 45m

Washington, D.C. Dulles Intl

Mon 4/20

3:26 pm-8:40 am

2 stops35h 14m

$1,200

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Tue 7/7

9:30 pm-8:20 pm

2 stops28h 50m

Washington, D.C. Dulles Intl

Wed 7/15

5:40 pm-8:20 am

2 stops32h 40m

$1,680

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Sun 3/15

9:20 am-7:45 pm

2 stops15h 25m

$412

San SebastianWashington, D.C.

EAS - IAD

EASIAD

San Sebastián

Sun 3/15

9:20 am-5:30 pm

1 stop13h 10m

$817

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

  • Most accurate provider: When it comes to deals on San Sebastian-Washington, D.C. Dulles Intl Airport flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on San Sebastian-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from San Sebastian-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Sebastian-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Sebastian-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Sebastian to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from San Sebastian with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Sebastian to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from San Sebastian to Washington, D.C. Dulles Intl Airport?

Currently, October is the cheapest month in which you can book a flight from San Sebastian to Washington, D.C. Dulles Intl Airport (average of $376). Flying from San Sebastian to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $661). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from San Sebastian to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Sebastian to Washington, D.C. Dulles Intl?

    Located just 9.7 mi from the city center, San Sebastián is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from San Sebastian. Booking flights from San Sebastián (EAS) to Washington, D.C. Dulles Intl should be relatively easy as there are 0 daily outbound flights to Washington, D.C. Dulles Intl from 0 different airlines.

  • How long is the flight from San Sebastian to Washington, D.C. Dulles Intl Airport?

    For as low as $855, Iberia can have you in Washington, D.C. Dulles Intl Airport from San Sebastian in 24h. There are 3807 mi between San Sebastian and Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from San Sebastian to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on San Sebastian to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Sebastian to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Sebastian to Dulles Intl.

  • Can I find deals for business class flights from San Sebastian to Dulles Intl?

    Yes. Cheapflights offers flight deals from San Sebastian to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Sebastian to Washington, D.C. Dulles Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from San Sebastian to Washington, D.C. Dulles Intl Airport (average of $376). Flying from San Sebastian to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $661). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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