How long does it take to fly to San Sebastian?

On average, it takes 18h 30m to fly from State of Washington to San Sebastian if you fly out of Pasco (the most popular airport in State of Washington) and into Bilbao (the most popular airport in San Sebastian). If you’re flying out of Seattle and into Bilbao, then the flight time is around 19h 35m.

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.

$573 Cheap Flights from Washington to San Sebastian in 2025/26

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Find the cheapest flights from Washington to San Sebastian

Round-trip

One-way

Cheap round-trip flights

6:50 pm - 8:50 pmSEA-EAS

41h 00m2 stops

9:30 pm - 9:40 pmEAS-SEA

33h 10m2 stops

$1,209Multiple Airlines

Find Deal

Thu, Jan 1 - Thu, Jan 8

12:34 am - 8:50 pmSEA-EAS

36h 16m2 stops

9:20 am - 11:18 pmEAS-SEA

22h 58m2 stops

$1,305American Airlines

Find Deal

Thu, Oct 30 - Tue, Nov 4

6:50 pm - 8:50 pmSEA-EAS

41h 00m2 stops

9:30 pm - 4:55 pmEAS-SEA

28h 25m2 stops

$1,456Multiple Airlines

Find Deal

Thu, Jan 1 - Wed, Jan 7

6:50 pm - 8:40 amSEA-EAS

28h 50m2 stops

9:30 pm - 1:00 pmEAS-SEA

48h 30m2 stops

$1,977Iberia

Find Deal

Wed, Dec 24 - Tue, Dec 30

6:50 pm - 1:00 pmSEA-EAS

33h 10m2 stops

9:30 pm - 10:59 amEAS-SEA

46h 29m2 stops

$2,027Iberia

Find Deal

Thu, Dec 25 - Tue, Dec 30

1:35 pm - 8:50 pmSEA-EAS

22h 15m2 stops

9:20 am - 11:13 pmEAS-SEA

22h 53m2 stops

$2,084American Airlines

Find Deal

Fri, Dec 26 - Mon, Dec 29

11:59 pm - 8:50 pmSEA-EAS

35h 51m2 stops

9:20 am - 11:13 pmEAS-SEA

22h 53m2 stops

$2,124American Airlines

Find Deal

Tue, Dec 23 - Mon, Dec 29

11:59 pm - 8:50 pmSEA-EAS

35h 51m2 stops

9:20 am - 10:02 amEAS-SEA

33h 42m2 stops

$2,215American Airlines

Find Deal

Tue, Dec 23 - Wed, Dec 31

12:59 am - 1:00 pmSEA-EAS

27h 01m2 stops

9:30 pm - 10:59 amEAS-SEA

46h 29m2 stops

$2,228Iberia

Find Deal

Mon, Dec 22 - Tue, Dec 30

10:32 am - 1:00 pmSEA-EAS

17h 28m2 stops

9:30 pm - 7:14 pmEAS-SEA

30h 44m2 stops

$2,845Multiple Airlines

Find Deal

Mon, Dec 22 - Wed, Dec 31

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

Oct 30

SEA12:34 amSeattle/Tacoma Intl

36h 16m

2 stops

EAS8:50 pmSan Sebastián

Nov 4

EAS9:20 amSan Sebastián

22h 58m

2 stops

SEA11:18 pmSeattle/Tacoma Intl

$1,305

Find similar

American Airlines

Dec 26

SEA1:35 pmSeattle/Tacoma Intl

22h 15m

2 stops

EAS8:50 pmSan Sebastián

Dec 29

EAS9:20 amSan Sebastián

22h 53m

2 stops

SEA11:13 pmSeattle/Tacoma Intl

$2,084

Find similar

American Airlines

Dec 23

SEA11:59 pmSeattle/Tacoma Intl

35h 51m

2 stops

EAS8:50 pmSan Sebastián

Dec 29

EAS9:20 amSan Sebastián

22h 53m

2 stops

SEA11:13 pmSeattle/Tacoma Intl

$2,124

Find similar

Iberia flights from State of Washington to San Sebastian

Our best Iberia deals on State of Washington to San Sebastian flight tickets

Iberia

Dec 24

SEA6:50 pmSeattle/Tacoma Intl

28h 50m

2 stops

EAS8:40 amSan Sebastián

Dec 30

EAS9:30 pmSan Sebastián

48h 30m

2 stops

SEA1:00 pmSeattle/Tacoma Intl

$1,977

Find similar

Iberia

Dec 25

SEA6:50 pmSeattle/Tacoma Intl

33h 10m

2 stops

EAS1:00 pmSan Sebastián

Dec 30

EAS9:30 pmSan Sebastián

46h 29m

2 stops

SEA10:59 amSeattle/Tacoma Intl

$2,027

Find similar

Iberia

Dec 22

SEA12:59 amSeattle/Tacoma Intl

27h 01m

2 stops

EAS1:00 pmSan Sebastián

Dec 30

EAS9:30 pmSan Sebastián

46h 29m

2 stops

SEA10:59 amSeattle/Tacoma Intl

$2,228

Find similar

momondo Fare Finder

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

Thu 1/1

6:50 pm-8:50 pm

2 stops41h 00m

San Sebastián

Thu 1/8

9:30 pm-9:40 pm

2 stops33h 10m

$1,209

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Thu 10/30

12:34 am-8:50 pm

2 stops36h 16m

San Sebastián

Tue 11/4

9:20 am-11:18 pm

2 stops22h 58m

$1,305

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Thu 1/1

6:50 pm-8:50 pm

2 stops41h 00m

San Sebastián

Wed 1/7

9:30 pm-4:55 pm

2 stops28h 25m

$1,456

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Wed 12/24

6:50 pm-8:40 am

2 stops28h 50m

San Sebastián

Tue 12/30

9:30 pm-1:00 pm

2 stops48h 30m

$1,977

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Thu 12/25

6:50 pm-1:00 pm

2 stops33h 10m

San Sebastián

Tue 12/30

9:30 pm-10:59 am

2 stops46h 29m

$2,027

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Fri 12/26

1:35 pm-8:50 pm

2 stops22h 15m

San Sebastián

Mon 12/29

9:20 am-11:13 pm

2 stops22h 53m

$2,084

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Tue 12/23

11:59 pm-8:50 pm

2 stops35h 51m

San Sebastián

Mon 12/29

9:20 am-11:13 pm

2 stops22h 53m

$2,124

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Tue 12/23

11:59 pm-8:50 pm

2 stops35h 51m

San Sebastián

Wed 12/31

9:20 am-10:02 am

2 stops33h 42m

$2,215

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Mon 12/22

12:59 am-1:00 pm

2 stops27h 01m

San Sebastián

Tue 12/30

9:30 pm-10:59 am

2 stops46h 29m

$2,228

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Mon 12/22

10:32 am-1:00 pm

2 stops17h 28m

San Sebastián

Wed 12/31

9:30 pm-7:14 pm

2 stops30h 44m

$2,845

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first

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

Airlines

Other information

What is the cheapest airline that flies from Washington to San Sebastián?

Iberia is the most popular carrier operating from Washington to San Sebastián

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 33% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 5 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.

Search flight deals

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.

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.