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San Sebastian

$668+ Cheap flights from San Francisco (SFO) 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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — EAS
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
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Cheap flight deals from San Francisco to San Sebastian

Best flights from San Francisco to San Sebastian
Discover carefully curated flight deals from San Francisco to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:40 pmSFO - EAS
1 stop27h 55mMultiple Airlines
Mon 5/185:55 pmEAS - SFO
1 stop33h 00mMultiple Airlines
Deal found 12/28$668
This Iberia deal was found by Cheapflights users on 12/30. 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.
Thu 5/147:40 pmSFO - EAS
1 stop27h 40mIberia
Sat 5/235:55 pmEAS - SFO
1 stop33h 00mIberia
Deal found 12/30$961
This American Airlines deal was found by Cheapflights users on 12/28. 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.
Tue 5/56:00 amSFO - EAS
2 stops22h 00mAmerican Airlines
Mon 5/181:40 pmEAS - SFO
2 stops19h 19mAmerican Airlines
Deal found 12/28$1,071
This Trip.com deal was found by Cheapflights users on 12/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/152:40 pmSFO - EAS
2 stops21h 10mMultiple Airlines
Sun 2/229:20 amEAS - SFO
2 stops36h 20mMultiple Airlines
Deal found 12/28$810
This Gurufare deal was found by Cheapflights users on 12/28. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/145:30 pmSFO - EAS
2 stops30h 10mMultiple Airlines
Sun 2/229:30 pmEAS - SFO
2 stops30h 15mMultiple Airlines
Deal found 12/28$1,067
This Iberia deal was found by Cheapflights users on 12/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/168:00 amSFO - EAS
2 stops39h 40mIberia
Sun 2/229:30 pmEAS - SFO
2 stops33h 54mIberia
Deal found 12/28$1,179
This Iberia deal was found by Cheapflights users on 12/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/178:40 pmSFO - EAS
2 stops27h 00mIberia
Sun 2/229:30 pmEAS - SFO
2 stops33h 54mIberia
Deal found 12/28$1,212
This Kiwi.com deal was found by Cheapflights users on 12/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:50 pmSFO - EAS
2 stops19h 30mMultiple Airlines
Sat 6/208:55 amEAS - SFO
1 stop18h 05mMultiple Airlines
Deal found 12/30$1,209
This Iberia deal was found by Cheapflights users on 12/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:00 amSFO - EAS
2 stops17h 40mIberia
Sun 2/229:30 pmEAS - SFO
2 stops33h 34mIberia
Deal found 12/28$1,403
This British Airways deal was found by Cheapflights users on 12/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:00 amSFO - EAS
2 stops22h 40mMultiple Airlines
Sat 5/239:30 pmEAS - SFO
2 stops33h 59mMultiple Airlines
Deal found 12/30$1,554

Find 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 December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$668
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$733
Provider with most accurate pricing for San Francisco-San Sebastián flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-San Sebastián flights.
Search Deals
From San Francisco to San Sebastián
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($265 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($54 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 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

Tue 5/5

7:40 pm-8:35 am

1 stop27h 55m

San Sebastián

Mon 5/18

5:55 pm-5:55 pm

1 stop33h 00m

$668

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sun 2/15

2:40 pm-8:50 pm

2 stops21h 10m

San Sebastián

Sun 2/22

9:20 am-12:40 pm

2 stops36h 20m

$810

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Thu 5/14

7:40 pm-8:20 am

1 stop27h 40m

San Sebastián

Sat 5/23

5:55 pm-5:55 pm

1 stop33h 00m

$961

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sat 2/14

5:30 pm-8:40 am

2 stops30h 10m

San Sebastián

Sun 2/22

9:30 pm-6:45 pm

2 stops30h 15m

$1,067

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 5/5

6:00 am-1:00 pm

2 stops22h 00m

San Sebastián

Mon 5/18

1:40 pm-11:59 pm

2 stops19h 19m

$1,071

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Mon 2/16

8:00 am-8:40 am

2 stops39h 40m

San Sebastián

Sun 2/22

9:30 pm-10:24 pm

2 stops33h 54m

$1,179

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Fri 6/12

12:50 pm-5:20 pm

2 stops19h 30m

San Sebastián

Sat 6/20

8:55 am-6:00 pm

1 stop18h 05m

$1,209

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 2/17

8:40 pm-8:40 am

2 stops27h 00m

San Sebastián

Sun 2/22

9:30 pm-10:24 pm

2 stops33h 54m

$1,212

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Thu 2/12

6:00 am-8:40 am

2 stops17h 40m

San Sebastián

Sun 2/22

9:30 pm-10:04 pm

2 stops33h 34m

$1,403

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Thu 5/14

7:00 am-2:40 pm

2 stops22h 40m

San Sebastián

Sat 5/23

9:30 pm-10:29 pm

2 stops33h 59m

$1,554

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

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 December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-San Sebastian flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 month to book a flight from San Francisco to San Sebastian?

Currently, March is the cheapest month in which you can book a flight from San Francisco to San Sebastian (average of $395). Flying from San Francisco to San Sebastian in June is currently the most expensive (average of $901). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 December 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
11,074 reviews

Comfort

7.2

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.4

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
American Airlines
7.2
Good
11,074 reviews
American Airlines
7.2
Good
11,074 reviews

Comfort

7.2

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.4

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit
Iberia
7.0
Good
3,058 reviews
American Airlines
7.2
Good
11,074 reviews

Comfort

7.2

Crew

8.0

Overall

7.2

Entertainment

6.9

Food

6.4

Boarding

7.5

Reviews

1 / 20
10.0
Excellent

Jeremy,Dec 2025

OKC - CLT

Was an okay flight. Had extra seat empty beside me so was able to stretch a bit

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 22h. 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 $635 on this airline. An additional option worth looking into is American Airlines, starting at $714. Users have found that Iberia is 36% 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.

  • What is the cheapest month to book a flight from San Francisco to San Sebastian?

    Currently, March is the cheapest month in which you can book a flight from San Francisco to San Sebastian (average of $395). Flying from San Francisco to San Sebastian in June is currently the most expensive (average of $901). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$635Average$1,028FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$714Average$1,107FlexibilityNo cancel feeOn-time71%

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