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Cheap flights from Washington to San Sebastian from $885

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to San Sebastian departing on 3/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Multiple Airlines Logo
7:50 pm - 8:50 pmSEA-EAS
17h 00m2 stops
Multiple Airlines Logo
4:30 pm - 12:30 pmEAS-SEA
28h 00m1 stop
$885Multiple Airlines
Find Deal
Fri, Mar 13 - Thu, Mar 26
British Airways Logo
2:35 pm - 4:10 pmSEA-EAS
17h 35m1 stop
British Airways Logo
4:30 pm - 12:30 pmEAS-SEA
28h 00m1 stop
$886British Airways
Find Deal
Sat, Mar 14 - Thu, Mar 26
Multiple Airlines Logo
7:50 pm - 8:50 pmSEA-EAS
17h 00m2 stops
Multiple Airlines Logo
9:30 pm - 5:55 pmEAS-SEA
28h 25m2 stops
$929Multiple Airlines
Find Deal
Fri, Mar 13 - Thu, Mar 26
Multiple Airlines Logo
2:35 pm - 4:10 pmSEA-EAS
17h 35m1 stop
Multiple Airlines Logo
9:30 pm - 5:55 pmEAS-SEA
28h 25m2 stops
$963Multiple Airlines
Find Deal
Sat, Mar 14 - Thu, Mar 26
American Airlines Logo
6:15 am - 8:40 amSEA-EAS
17h 25m2 stops
American Airlines Logo
9:20 am - 11:25 pmEAS-SEA
23h 05m2 stops
$982American Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 7
British Airways Logo
7:41 pm - 3:50 pmSEA-EAS
60h 09m2 stops
British Airways Logo
4:30 pm - 12:30 pmEAS-SEA
28h 00m1 stop
$1,053British Airways
Find Deal
Mon, Mar 16 - Thu, Mar 26
American Airlines Logo
1:33 am - 1:00 pmSEA-EAS
27h 27m2 stops
American Airlines Logo
9:20 am - 9:53 pmEAS-SEA
20h 33m2 stops
$1,066American Airlines
Find Deal
Sat, Mar 14 - Wed, Mar 25
American Airlines Logo
12:41 am - 8:40 amSEA-EAS
46h 59m2 stops
American Airlines Logo
9:20 am - 10:25 pmEAS-SEA
22h 05m2 stops
$1,076American Airlines
Find Deal
Tue, Dec 2 - Sun, Dec 7
British Airways Logo
7:41 pm - 4:10 pmSEA-EAS
60h 29m2 stops
British Airways Logo
4:30 pm - 12:30 pmEAS-SEA
28h 00m1 stop
$1,078British Airways
Find Deal
Thu, Mar 12 - Thu, Mar 26
British Airways Logo
2:35 pm - 4:10 pmSEA-EAS
17h 35m1 stop
British Airways Logo
5:00 pm - 11:35 amEAS-SEA
27h 35m1 stop
$1,080British Airways
Find Deal
Sat, Mar 14 - Sun, Mar 29

British Airways flights from State of Washington to San Sebastian

Our best British Airways deals on State of Washington to San Sebastian flight tickets
British Airways
Mar 14
SEA2:35 pmSeattle/Tacoma Intl
17h 35m
1 stop
EAS4:10 pmSan Sebastián
Mar 26
EAS4:30 pmSan Sebastián
28h 00m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
$886
Find similar
British Airways
Mar 16
SEA7:41 pmSeattle/Tacoma Intl
60h 09m
2 stops
EAS3:50 pmSan Sebastián
Mar 26
EAS4:30 pmSan Sebastián
28h 00m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
$1,053
Find similar
British Airways
Mar 12
SEA7:41 pmSeattle/Tacoma Intl
60h 29m
2 stops
EAS4:10 pmSan Sebastián
Mar 26
EAS4:30 pmSan Sebastián
28h 00m
1 stop
SEA12:30 pmSeattle/Tacoma Intl
$1,078
Find similar

American Airlines flights from State of Washington to San Sebastian

Our best American Airlines deals on State of Washington to San Sebastian flight tickets
American Airlines
Dec 3
SEA6:15 amSeattle/Tacoma Intl
17h 25m
2 stops
EAS8:40 amSan Sebastián
Dec 7
EAS9:20 amSan Sebastián
23h 05m
2 stops
SEA11:25 pmSeattle/Tacoma Intl
$982
Find similar
American Airlines
Mar 14
SEA1:33 amSeattle/Tacoma Intl
27h 27m
2 stops
EAS1:00 pmSan Sebastián
Mar 25
EAS9:20 amSan Sebastián
20h 33m
2 stops
SEA9:53 pmSeattle/Tacoma Intl
$1,066
Find similar
American Airlines
Dec 2
SEA12:41 amSeattle/Tacoma Intl
46h 59m
2 stops
EAS8:40 amSan Sebastián
Dec 7
EAS9:20 amSan Sebastián
22h 05m
2 stops
SEA10:25 pmSeattle/Tacoma Intl
$1,076
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to San Sebastian 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 November 17, 2025.
Use the filters below to find and compare flights from Washington to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Fri 3/13

7:50 pm-8:50 pm

2 stops17h 00m

San Sebastián

Thu 3/26

4:30 pm-12:30 pm

1 stop28h 00m

$885

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Sat 3/14

2:35 pm-4:10 pm

1 stop17h 35m

San Sebastián

Thu 3/26

4:30 pm-12:30 pm

1 stop28h 00m

$886

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Fri 3/13

7:50 pm-8:50 pm

2 stops17h 00m

San Sebastián

Thu 3/26

9:30 pm-5:55 pm

2 stops28h 25m

$929

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Sat 3/14

2:35 pm-4:10 pm

1 stop17h 35m

San Sebastián

Thu 3/26

9:30 pm-5:55 pm

2 stops28h 25m

$963

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Wed 12/3

6:15 am-8:40 am

2 stops17h 25m

San Sebastián

Sun 12/7

9:20 am-11:25 pm

2 stops23h 05m

$982

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Mon 3/16

7:41 pm-3:50 pm

2 stops60h 09m

San Sebastián

Thu 3/26

4:30 pm-12:30 pm

1 stop28h 00m

$1,053

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Sat 3/14

1:33 am-1:00 pm

2 stops27h 27m

San Sebastián

Wed 3/25

9:20 am-9:53 pm

2 stops20h 33m

$1,066

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Tue 12/2

12:41 am-8:40 am

2 stops46h 59m

San Sebastián

Sun 12/7

9:20 am-10:25 pm

2 stops22h 05m

$1,076

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Thu 3/12

7:41 pm-4:10 pm

2 stops60h 29m

San Sebastián

Thu 3/26

4:30 pm-12:30 pm

1 stop28h 00m

$1,078

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Sat 3/14

2:35 pm-4:10 pm

1 stop17h 35m

San Sebastián

Sun 3/29

5:00 pm-11:35 am

1 stop27h 35m

$1,080

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to San Sebastian from

How to get the cheapest flight ticket from State of Washington to San Sebastian

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 airlines fly to San Sebastian?

Lufthansa, Delta and KLM are the top three most popular airlines that fly to San Sebastian from State of Washington according to our data. Lufthansa is the first choice among our users, with 40% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 4 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

Cheap State of Washington to San Sebastian flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to San Sebastian

Direct flights

None
There are no direct flights from State of Washington to San Sebastian. There are no popular flight routes from State of Washington to San Sebastian.
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  • When did momondo last update prices for flights from Washington to San Sebastián Airport?

    Prices for flights from Washington to San Sebastián Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Washington to San Sebastián Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington to San Sebastián Airport.

  • What documentation or ID do you need to fly to San Sebastián Airport?

    The travel and health documents required for your trip to San Sebastián 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 San Sebastián Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Irun
Hondarribia

Why use momondo?

Why should I use momondo to find a flight deal from Washington to San Sebastian?

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 Washington to San Sebastian for you.

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

All flight searches from Washington to San Sebastian on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to San Sebastian?

momondo helps you find the best flight between Washington and San Sebastian by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington to San Sebastian right now. Can momondo alert me if prices change?

Price alerts on flights to San Sebastian from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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