$338 Cheap flight deals from Seattle (SEA) to San Sebastián (EAS)

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This Weekend's Flight Deals from Seattle to San Sebastián

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Nov 1 - Mon, Apr 5
SEA
Seattle - Tacoma Intl.
BIO
Bilbao
$974 Roundtrip, found 3 days ago
$974
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Sun, Nov 1 from Seattle - Tacoma Intl. to Bilbao, returning Mon, Apr 5, priced at $974 found 3 days ago

Airfares from $338 One Way, $710 Round Trip from Seattle to San Sebastián

Prices starting at $710 for return flights and $338 for one-way flights to San Sebastián were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Apr 14 - Thu, Apr 22
SEA
Seattle
BIO
Bilbao
$710 Roundtrip, found 3 days ago
$710
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Apr 14 from Seattle to Bilbao, returning Thu, Apr 22, priced at $710 found 3 days ago
Wed, Feb 10 - Tue, Feb 16
SEA
Seattle
BIO
Bilbao
$719 Roundtrip, found 22 hours ago
$719
Roundtrip
found 22 hours ago
Select Delta flight, departing Wed, Feb 10 from Seattle to Bilbao, returning Tue, Feb 16, priced at $719 found 22 hours ago
Wed, Feb 10 - Tue, Feb 16
SEA
Seattle
BIO
Bilbao
$729 Roundtrip, found 22 hours ago
$729
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Feb 10 from Seattle to Bilbao, returning Tue, Feb 16, priced at $729 found 22 hours ago
Wed, Feb 10 - Tue, Feb 16
SEA
Seattle
BIO
Bilbao
$744 Roundtrip, found 22 hours ago
$744
Roundtrip
found 22 hours ago
Select Iberia flight, departing Wed, Feb 10 from Seattle to Bilbao, returning Tue, Feb 16, priced at $744 found 22 hours ago
Wed, Feb 10 - Tue, Feb 16
SEA
Seattle
BIO
Bilbao
$744 Roundtrip, found 22 hours ago
$744
Roundtrip
found 22 hours ago
Select American Airlines flight, departing Wed, Feb 10 from Seattle to Bilbao, returning Tue, Feb 16, priced at $744 found 22 hours ago

San Sebastián economy flight packages

Price found within the past 48 hours. Click for updated prices.
Holiday Inn Express Pamplona by IHG
3.0-star property

Holiday Inn Express Pamplona by IHG

9/10 Wonderful! (693 reviews)

Nov 28 - Dec 4

6 night stay

Seattle (SEA) to San Sebastian (EAS)

American Airlines • Roundtrip • Coach
Price was $1,189, price is now $1,159 per person
$1,159
per person
found 22 hours ago
Wonderful stop for stay over close to mall , freeway and bus stop to city.

Reviewed on Oct 3, 2026

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More About Flying To San Sebastián from Seattle

Route Information for Flights from Seattle to San Sebastián

Origin Airport IATA Code
SEA
Destination Airport IATA Code
EAS
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Seattle to San Sebastián

Whether you want to book cheap flights from Seattle to San Sebastián or are looking for the perfect package holiday, Orbitz is your one-stop source. Taking the stress and expense out of travel, Orbitz helps you find the best fares for Seattle to San Sebastián flights.

Make the Most of Your Vacation

Not only does Orbitz have cheap deals for Seattle to San Sebastián flights, we can also help you plan your vacation in advance. Why wait in lengthy lines for tickets to shows, amusement parks, and other attractions when you could be making the most of your holiday? Add activities to your flight booking for fewer hassles once you arrive in San Sebastián.

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Book your flights from Seattle to San Sebastián wherever you are with the Orbitz app for Android and iPhone. Or simply use m.orbitz.com on your mobile browser to search and book the Seattle to San Sebastián flights that you want. And if you’re running late, you check your flight status and baggage claim information on your mobile device too too.

Craft Your Perfect Vacation

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Keep Informed With Orbitz

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Frequently asked questions

What is the shortest flight from Seattle to San Sebastian?
Pick your favorite seat, because you'll be in it for at least 11 hours and 25 minutes. This is the quickest possible flight time from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Bilbao (BIO)
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.