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Cheap flights from San Francisco to San Sebastian from $446

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to San Sebastian departing on 4/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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American Airlines Logo
7:00 am - 8:40 amSFO-EAS
16h 40m2 stops
American Airlines Logo
1:40 pm - 12:47 amEAS-SFO
20h 07m2 stops
$645American Airlines
Find Deal
Thu, Jan 15 - Wed, Jan 21
Multiple Airlines Logo
4:35 pm - 8:40 amSFO-EAS
31h 05m2 stops
Multiple Airlines Logo
9:30 pm - 4:10 pmEAS-SFO
27h 40m1 stop
$701Multiple Airlines
Find Deal
Wed, May 20 - Mon, May 25
American Airlines Logo
10:35 am - 8:50 pmSFO-EAS
25h 15m2 stops
American Airlines Logo
9:20 am - 8:10 pmEAS-SFO
19h 50m2 stops
$782American Airlines
Find Deal
Wed, Jan 21 - Sun, Jan 25
Iberia Logo
10:11 am - 1:00 pmSFO-EAS
17h 49m2 stops
Iberia Logo
9:30 pm - 11:36 pmEAS-SFO
35h 06m2 stops
$810Iberia
Find Deal
Wed, Jan 21 - Sun, Jan 25
Multiple Airlines Logo
4:35 pm - 8:40 amSFO-EAS
31h 05m2 stops
Multiple Airlines Logo
9:20 am - 4:10 pmEAS-SFO
15h 50m1 stop
$878Multiple Airlines
Find Deal
Wed, May 20 - Tue, May 26
Multiple Airlines Logo
4:35 pm - 8:40 amSFO-EAS
31h 05m2 stops
Multiple Airlines Logo
9:20 am - 6:00 pmEAS-SFO
17h 40m2 stops
$900Multiple Airlines
Find Deal
Wed, May 20 - Tue, May 26
Iberia Logo
2:28 pm - 8:40 amSFO-EAS
33h 12m2 stops
Iberia Logo
9:20 am - 9:02 pmEAS-SFO
20h 42m2 stops
$941Iberia
Find Deal
Wed, May 20 - Mon, May 25
Multiple Airlines Logo
12:21 am - 8:40 amSFO-EAS
23h 19m2 stops
Multiple Airlines Logo
9:30 pm - 4:10 pmEAS-SFO
27h 40m1 stop
$974Multiple Airlines
Find Deal
Tue, May 19 - Mon, May 25
American Airlines Logo
12:21 am - 8:40 amSFO-EAS
23h 19m2 stops
American Airlines Logo
9:20 am - 11:23 pmEAS-SFO
23h 03m2 stops
$1,159American Airlines
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Tue, May 19 - Mon, May 25
American Airlines Logo
12:21 am - 8:40 amSFO-EAS
23h 19m2 stops
American Airlines Logo
9:20 am - 4:10 pmEAS-SFO
15h 50m1 stop
$1,164American Airlines
Find Deal
Tue, May 19 - Tue, May 26

Iberia flights from San Francisco to San Sebastian

Our best Iberia deals on San Francisco to San Sebastian flight tickets
Iberia
Jan 21
SFO10:11 amSan Francisco
17h 49m
2 stops
EAS1:00 pmSan Sebastián
Jan 25
EAS9:30 pmSan Sebastián
35h 06m
2 stops
SFO11:36 pmSan Francisco
$810
Find similar
Iberia
May 20
SFO2:28 pmSan Francisco
33h 12m
2 stops
EAS8:40 amSan Sebastián
May 25
EAS9:20 amSan Sebastián
20h 42m
2 stops
SFO9:02 pmSan Francisco
$941
Find similar

American Airlines flights from San Francisco to San Sebastian

Our best American Airlines deals on San Francisco to San Sebastian flight tickets
American Airlines
Jan 15
SFO7:00 amSan Francisco
16h 40m
2 stops
EAS8:40 amSan Sebastián
Jan 21
EAS1:40 pmSan Sebastián
20h 07m
2 stops
SFO12:47 amSan Francisco
$645
Find similar
American Airlines
Jan 21
SFO10:35 amSan Francisco
25h 15m
2 stops
EAS8:50 pmSan Sebastián
Jan 25
EAS9:20 amSan Sebastián
19h 50m
2 stops
SFO8:10 pmSan Francisco
$782
Find similar
American Airlines
May 19
SFO12:21 amSan Francisco
23h 19m
2 stops
EAS8:40 amSan Sebastián
May 25
EAS9:20 amSan Sebastián
23h 03m
2 stops
SFO11:23 pmSan Francisco
$1,159
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momondo 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, momondo users made 832,500 searches. Data last updated December 3, 2025.
Use the filters below to find and compare flights from San Francisco to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Thu 1/15

7:00 am-8:40 am

2 stops16h 40m

San Sebastián

Wed 1/21

1:40 pm-12:47 am

2 stops20h 07m

$645

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 5/20

4:35 pm-8:40 am

2 stops31h 05m

San Sebastián

Mon 5/25

9:30 pm-4:10 pm

1 stop27h 40m

$701

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 1/21

10:35 am-8:50 pm

2 stops25h 15m

San Sebastián

Sun 1/25

9:20 am-8:10 pm

2 stops19h 50m

$782

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 1/21

10:11 am-1:00 pm

2 stops17h 49m

San Sebastián

Sun 1/25

9:30 pm-11:36 pm

2 stops35h 06m

$810

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 5/20

4:35 pm-8:40 am

2 stops31h 05m

San Sebastián

Tue 5/26

9:20 am-4:10 pm

1 stop15h 50m

$878

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 5/20

4:35 pm-8:40 am

2 stops31h 05m

San Sebastián

Tue 5/26

9:20 am-6:00 pm

2 stops17h 40m

$900

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 5/20

2:28 pm-8:40 am

2 stops33h 12m

San Sebastián

Mon 5/25

9:20 am-9:02 pm

2 stops20h 42m

$941

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 5/19

12:21 am-8:40 am

2 stops23h 19m

San Sebastián

Mon 5/25

9:30 pm-4:10 pm

1 stop27h 40m

$974

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 5/19

12:21 am-8:40 am

2 stops23h 19m

San Sebastián

Mon 5/25

9:20 am-11:23 pm

2 stops23h 03m

$1,159

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 5/19

12:21 am-8:40 am

2 stops23h 19m

San Sebastián

Tue 5/26

9:20 am-4:10 pm

1 stop15h 50m

$1,164

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to San Sebastian from

How to get the cheapest flight ticket from San Francisco to San Sebastian

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Sebastian?

On average, the least expensive day to fly to San Sebastian from San Francisco is on a Monday. momondo users have found tickets for Monday departures for as low as $788. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to San Sebastian for around $1,566.

What is the cheapest time of day to depart on your flight to San Sebastian?

Flying to San Sebastian from San Francisco in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,039 when looking at flights departing in the evening. Flights to San Sebastian are more costly at noon, with an average ticket price of $1,438. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on San Francisco to San Sebastian flights?

You could potentially save up to 35% on your flight if you consider stops on a San Francisco to San Sebastian flight.

When to book flights from San Francisco to San Sebastian

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to San Sebastian according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to San Sebastian (SFO to EAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to San Sebastian

Fastest flight time

17h 49m

Direct flights

None
The fastest flight from San Francisco to San Sebastian takes 17h 49m
There are no direct flights from San Francisco to San Sebastian. There are no popular flight routes from San Francisco to San Sebastian.
Search flight deals

  • How far is San Francisco to San Sebastián by plane?

    The distance between San Francisco and San Sebastián is about 5702.1 mi. Flights usually cover this in 16h 40m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from San Francisco Airport to San Sebastián Airport?

    Prices for flights from San Francisco Airport to San Sebastián Airport refresh daily.

  • How many operators does momondo search for flights from San Francisco Airport to San Sebastián Airport?

  • How old do you have to be to fly from San Francisco Airport to San Sebastián Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to San Sebastián Airport.

  • What documentation or ID do you need to fly to San Sebastián Airport?

    The required travel and health documents for your San Sebastián Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Sebastián Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Francisco to San Sebastian?

Best airlines flying from San Francisco to San Sebastian

Compare and see reviews for airlines that fly from San Francisco to San Sebastian with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $662Free CancellationRating
7.0
3,038 reviews
Search Iberia flights
American AirlinesPriceFrom $714Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights

Traveling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Irun
Hondarribia

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to San Sebastian?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco to San Sebastian for you.

Can I find flights from San Francisco to San Sebastian with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Sebastian from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco to San Sebastian?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Sebastian from San Francisco.

I’m not ready to book a flight from San Francisco to San Sebastian right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco to San Sebastian flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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