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$435+ Cheap flights from San Francisco (SFO) to San Sebastian (EAS)

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — EAS
oct. 30 — nov. 61
jue. 10/30
jue. 11/6
1 adult, Economy
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Cheap flight deals from San Francisco to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) 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 septiembre 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$734
(Expedia)

One-way from

$435
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$848
Provider with most accurate pricing for San Francisco-San Sebastián flight deals.
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Provider most trusted by Cheapflights users for San Francisco-San Sebastián flights.
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From San Francisco to San Sebastián
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One-way flight from San Francisco to San Sebastián
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Highest demand for flights based on searches. 21% potential increase in price ($273 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($49 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Francisco to San Sebastian

Cheapest flights from San Francisco to San Sebastian
Explore the most affordable flight options available from San Francisco to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 30, 2025.

This Expedia deal was found by Cheapflights users on 9/28. 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.
jue. 11/67:00 amSFO - EAS
2 stops16h 40mIberia
lun. 11/109:30 pmEAS - SFO
2 stops34h 29mIberia
Deal found 9/28$734
This American Airlines deal was found by Cheapflights users on 9/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/147:10 amSFO - EAS
2 stops28h 40mAmerican Airlines
mar. 11/181:40 pmEAS - SFO
2 stops39h 54mAmerican Airlines
Deal found 9/28$992
This American Airlines deal was found by Cheapflights users on 9/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/512:27 amSFO - EAS
2 stops23h 13mAmerican Airlines
lun. 11/109:20 amEAS - SFO
2 stops20h 25mAmerican Airlines
Deal found 9/28$1,064
This Mytrip deal was found by Cheapflights users on 9/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/64:40 pmSFO - EAS
3 stops35h 50mMultiple Airlines
lun. 11/102:05 pmEAS - SFO
3 stops35h 40mMultiple Airlines
Deal found 9/28$1,425

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 septiembre 30, 2025.
Use the filters below to find and compare flights from San Francisco to San Sebastian that are best for you.

Fly from

San Francisco

Fly to

San Sebastian

Route

Depart

Return

Price

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

jue. 11/6

7:00 am-8:40 am

2 stops16h 40m

San Sebastián

lun. 11/10

9:30 pm-10:59 pm

2 stops34h 29m

$734

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

vie. 11/14

7:10 am-8:50 pm

2 stops28h 40m

San Sebastián

mar. 11/18

1:40 pm-8:34 pm

2 stops39h 54m

$992

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

mié. 11/5

12:27 am-8:40 am

2 stops23h 13m

San Sebastián

lun. 11/10

9:20 am-8:45 pm

2 stops20h 25m

$1,064

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

jue. 11/6

4:40 pm-1:30 pm

3 stops35h 50m

San Sebastián

lun. 11/10

2:05 pm-4:45 pm

3 stops35h 40m

$1,425

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

vie. 3/27

6:30 pm-7:40 am

2 stops29h 10m

San Sebastián

lun. 4/6

1:40 pm-12:24 am

2 stops19h 44m

$1,427

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

vie. 12/12

7:00 am-8:40 am

3 stops40h 40m

$435

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

sáb. 10/18

6:18 am-8:40 am

2 stops17h 22m

$7,945

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

dom. 10/19

11:30 am-8:50 pm

2 stops24h 20m

$9,047

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

vie. 10/17

7:20 pm-4:15 pm

1 stop35h 55m

$9,055

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

jue. 10/16

10:12 am-1:00 pm

2 stops17h 48m

$11,377

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

Compare providers for flights from San Francisco to San Sebastian

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to San Sebastian in September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

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

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

Find hourly flight availability from San Francisco 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 septiembre 30, 2025.

When flying from San Francisco to San Sebastian, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 28% versus a flight at noon.

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 septiembre 30, 2025.
Read through reviews of airlines operating flights from San Francisco to San Sebastian, such as American Airlines and Iberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Food

6.4

Entertainment

6.9

Boarding

7.5

Overall

7.2

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Food

6.4

Entertainment

6.9

Boarding

7.5

Overall

7.2

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
Iberia
7.0
Good
2,962 reviews
American Airlines
7.2
Good
10,000 reviews

Crew

8.0

Food

6.4

Entertainment

6.9

Boarding

7.5

Overall

7.2

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

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

  • How long is the flight from San Francisco to San Sebastian?

    Departing from San Francisco to San Sebastian will take you 16h 40m. The distance from San Francisco to San Sebastian is about 5714 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Francisco to San Sebastian round-trip?

    Our cheapest airline available from San Francisco to San Sebastian is Iberia. Our recent data shows that you can find tickets from as low as $662 on this airline. An additional option worth looking into is American Airlines, starting at $714. Users have found that Iberia is 32% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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.

See more FAQs

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Top 2 airlines flying from San Francisco to San Sebastian

Discover the top 2 airlines that operate flights from San Francisco to San Sebastian. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$662Average$1,048FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$714Average$1,179FlexibilityNo cancel feeOn-time71%

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