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San Sebastian

$359+ Cheap flights from Fremont, CA 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — EAS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Fremont to San Sebastian

Cheapest flights from Fremont to San Sebastian
Explore the most affordable flight options available from Fremont to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/26. 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.
Wed 10/75:54 am
SFO
-
EAS
2 stops17h 46m
American Airlines
Thu 10/159:20 am
EAS
-
SFO
2 stops21h 06m
American Airlines
Deal found 1/26$882
This BusinessClass deal was found by Cheapflights users on 1/26. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/106:30 pm
SFO
-
EAS
2 stops18h 20m
Multiple Airlines
Mon 3/239:30 pm
EAS
-
SFO
2 stops30h 15m
Multiple Airlines
Deal found 1/26$995
This Iberia deal was found by Cheapflights users on 1/26. 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 9/284:35 pm
SFO
-
EAS
2 stops39h 45m
Iberia
Thu 10/19:10 am
EAS
-
SFO
1 stop17h 55m
Iberia
Deal found 1/26$1,068
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/187:30 pm
SFO
-
EAS
2 stops27h 50m
Iberia
Sun 5/318:55 am
EAS
-
SFO
1 stop18h 00m
Iberia
Deal found 1/28$1,363
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Fri 7/241:59 pm
SFO
-
EAS
2 stops21h 51m
Multiple Airlines
Wed 8/129:30 pm
EAS
-
SFO
1 stop27h 50m
Multiple Airlines
Deal found 1/27$1,380
This oojo deal was found by Cheapflights users on 1/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/247:00 am
SFO
-
EAS
2 stops16h 40m
Iberia
Wed 8/129:30 pm
EAS
-
SFO
2 stops32h 00m
Iberia
Deal found 1/27$1,436

Find flight deals from Fremont to San Sebastian

Keep the following information in mind while searching for Fremont to San Sebastian flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$995
(BusinessClass)

One-way from

$359
(Kiwi.com)

Popular in

May

Cheapest in

February
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 Fremont to San Sebastián
Search Deals
One-way flight from Fremont to San Sebastián
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($262 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($54 potential savings vs. average RT price).
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont 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 January 29, 2026.
Use the filters below to find and compare flights from Fremont to San Sebastian that are best for you.

Fly from

Fremont

Fly to

San Sebastian

Route

Depart

Return

Price

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 3/10

6:30 pm-8:50 pm

2 stops18h 20m

San Sebastián

Mon 3/23

9:30 pm-7:45 pm

2 stops30h 15m

$995

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Mon 5/18

7:30 pm-8:20 am

2 stops27h 50m

San Sebastián

Sun 5/31

8:55 am-5:55 pm

1 stop18h 00m

$1,363

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Fri 7/24

7:00 am-8:40 am

2 stops16h 40m

San Sebastián

Wed 8/12

9:30 pm-8:30 pm

2 stops32h 00m

$1,436

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sun 6/21

7:00 am-1:00 pm

2 stops21h 00m

San Sebastián

Mon 7/6

1:40 pm-4:20 pm

1 stop35h 40m

$1,585

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sat 6/20

11:53 pm-8:40 am

2 stops23h 47m

San Sebastián

Mon 7/6

1:40 pm-4:20 pm

1 stop35h 40m

$1,585

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Fri 6/19

7:00 am-8:40 am

2 stops16h 40m

San Sebastián

Mon 7/6

9:30 pm-4:20 pm

1 stop27h 50m

$1,628

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sat 6/20

10:03 pm-1:00 pm

2 stops29h 57m

San Sebastián

Sat 7/4

9:20 am-4:20 pm

1 stop16h 00m

$1,644

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sun 6/21

10:03 pm-8:40 am

2 stops25h 37m

San Sebastián

Sat 7/4

9:20 am-4:20 pm

1 stop16h 00m

$1,644

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sat 6/20

5:55 pm-8:50 pm

1 stop17h 55m

San Sebastián

Mon 7/6

9:30 pm-4:20 pm

1 stop27h 50m

$1,680

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Fri 6/19

5:22 am-1:00 pm

2 stops22h 38m

San Sebastián

Sat 7/4

9:20 am-4:20 pm

1 stop16h 00m

$1,714

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 15 results
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Best time to book a flight from Fremont to San Sebastian

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

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

Currently, March is the cheapest month in which you can book a flight from Fremont to San Sebastian (average of $396). Flying from Fremont 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 January 29, 2026.
Get a feel of what it's like to fly with American Airlines and Iberia from Fremont to San Sebastian by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,206 reviews

Overall

7.2

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,206 reviews
American Airlines
7.2
Good
11,206 reviews

Overall

7.2

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
Iberia
7.0
Good
3,100 reviews
American Airlines
7.2
Good
11,206 reviews

Overall

7.2

Food

6.4

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

Related info for your journey

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

  • What airport do you fly into for flights to San Sebastian from Fremont?

    San Sebastián (EAS) is the airport you will fly into if you book a flight from Fremont to San Sebastian. You should not have trouble finding flights to San Sebastián from Fremont; the airport handles an average of 0 inbound flights from Fremont per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the San Sebastian airport from Fremont. It is only a 9.7 mi journey from San Sebastián (EAS) to San Sebastian’s city center.

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

    Departing from Fremont to San Sebastian will take you 21h. Fremont and San Sebastian are separated by a distance of 5714 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Fremont 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 Fremont to San Sebastian?

    Currently, March is the cheapest month in which you can book a flight from Fremont to San Sebastian (average of $396). Flying from Fremont 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

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Alternative routes for Fremont to San Sebastian

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Top 2 airlines flying from Fremont to San Sebastian

Discover the top 2 airlines that operate flights from Fremont 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest$662Average$958FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$714Average$1,107FlexibilityNo cancel feeOn-time71%

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