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$1,034+ Cheap flights from Seattle (SEA) to San Sebastian (EAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — EAS
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Seattle to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to San Sebastian (EAS). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,034
(Trip.com)
Provider with most accurate pricing for Seattle/Tacoma Intl-San Sebastián flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Sebastián flights.
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From Seattle/Tacoma Intl to San Sebastián
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Find flight deals from Seattle to San Sebastian

Cheapest flights from Seattle to San Sebastian
Explore the most affordable flight options available from Seattle to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Trip.com deal was found by Cheapflights users on 2/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/68:20 pmSEA - EAS
2 stops31h 35mMultiple Airlines
Sun 4/139:25 amEAS - SEA
2 stops43h 20mMultiple Airlines
Deal found 2/19$1,089
This Iberia deal was found by Cheapflights users on 2/20. 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.
Wed 3/267:00 amSEA - EAS
2 stops41h 40mIberia
Mon 3/319:20 amEAS - SEA
2 stops42h 00mIberia
Deal found 2/20$1,246

Find flights from Seattle to San Sebastian within your budget

Customize your flight search to find flights from Seattle 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, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Seattle

Fly to

San Sebastian

Route

Depart

Return

Price

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Sun 4/6

8:20 pm-12:55 pm

2 stops31h 35m

San Sebastián

Sun 4/13

9:25 am-7:45 pm

2 stops43h 20m

$1,089

SeattleSan Sebastian

SEA - EAS

SEAEAS

Seattle/Tacoma Intl

Wed 3/26

7:00 am-8:40 am

2 stops41h 40m

San Sebastián

Mon 3/31

9:20 am-6:20 pm

2 stops42h 00m

$1,246

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

  • Most accurate provider: When it comes to deals on Seattle-San Sebastian flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-San Sebastian flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-San Sebastian flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-San Sebastian flights, Cheapflights users trust FlightHub the most. FlightHub 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 Seattle-San Sebastian 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 Seattle to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Seattle 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.

Travel insights for flights from Seattle to San Sebastian

Get recent, data-driven insights about flights from Seattle to San Sebastian including ideal travel times, pricing trends, and more.

What is the cheapest time of day to fly from SEA to EAS?

Find hourly flight availability from Seattle to San Sebastian. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to San Sebastian as you normally would.

Reviews of airlines servicing San Sebastian

Get insights into the airlines that provide service to San Sebastian. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Sebastian. Reviews last updated February 20, 2025.
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Crew

8.0

Entertainment

7.0

Boarding

7.5

Comfort

7.3

Overall

7.2

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Crew

8.0

Entertainment

7.0

Boarding

7.5

Comfort

7.3

Overall

7.2

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

Iberia
7.0
Good
2,639 reviews
American Airlines
7.2
Good
10,000 reviews

Food

6.5

Crew

8.0

Entertainment

7.0

Boarding

7.5

Comfort

7.3

Overall

7.2

Reviews

1 / 20

10.0
Excellent

Anonymous,Jan 2025

PIT - DFW

Due to gate changes,we nearly missed our flight. The gate agent reassigned our seats and would NOT give us our assigned seats,but she did honor that same request to the man who arrived after us. Her rudeness and difficulty was not appropriate.

Related info for your journey

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

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

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

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

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

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

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

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