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Cheap flights from San Francisco to San Sebastian from $400

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 11/29. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:30 pm - 8:40 amSFO-EAS
30h 10m2 stops
Multiple Airlines Logo
9:30 pm - 3:00 pmEAS-SFO
26h 30m2 stops
$831Multiple Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Iberia Logo
6:00 am - 8:40 amSFO-EAS
17h 40m2 stops
Iberia Logo
9:30 pm - 3:00 pmEAS-SFO
50h 30m2 stops
$1,088Iberia
Find Deal
Tue, Dec 16 - Tue, Dec 23
American Airlines Logo
7:20 am - 1:00 pmSFO-EAS
20h 40m2 stops
American Airlines Logo
9:20 am - 8:22 pmEAS-SFO
20h 02m2 stops
$1,156American Airlines
Find Deal
Wed, Nov 19 - Wed, Nov 26
Multiple Airlines Logo
8:25 am - 1:30 pmSFO-EAS
20h 05m2 stops
Multiple Airlines Logo
2:05 pm - 2:30 pmEAS-SFO
33h 25m3 stops
$1,436Multiple Airlines
Find Deal
Tue, Dec 16 - Tue, Dec 23
American Airlines Logo
7:20 am - 8:50 pmSFO-EAS
28h 30m2 stops
American Airlines Logo
1:40 pm - 8:28 pmEAS-SFO
39h 48m2 stops
$1,530American Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
American Airlines Logo
7:20 am - 8:50 pmSFO-EAS
28h 30m2 stops
American Airlines Logo
1:40 pm - 8:28 pmEAS-SFO
39h 48m2 stops
$1,591American Airlines
Find Deal
Fri, Nov 14 - Tue, Nov 18
Multiple Airlines Logo
7:25 pm - 1:30 pmSFO-EAS
33h 05m3 stops
Multiple Airlines Logo
2:05 pm - 2:30 pmEAS-SFO
33h 25m3 stops
$1,814Multiple Airlines
Find Deal
Tue, Dec 16 - Tue, Dec 23
American Airlines Logo
7:00 am - 8:40 amSFO-EAS
16h 40m2 stops
American Airlines Logo
9:20 am - 11:21 pmEAS-SFO
23h 01m2 stops
$2,161American Airlines
Find Deal
Thu, Dec 18 - Wed, Dec 31

American Airlines flights from San Francisco to San Sebastian

Our best American Airlines deals on San Francisco to San Sebastian flight tickets
American Airlines
Nov 19
SFO7:20 amSan Francisco
20h 40m
2 stops
EAS1:00 pmSan Sebastián
Nov 26
EAS9:20 amSan Sebastián
20h 02m
2 stops
SFO8:22 pmSan Francisco
$1,156
Find similar
American Airlines
Nov 14
SFO7:20 amSan Francisco
28h 30m
2 stops
EAS8:50 pmSan Sebastián
Nov 18
EAS1:40 pmSan Sebastián
39h 48m
2 stops
SFO8:28 pmSan Francisco
$1,530
Find similar
American Airlines
Nov 14
SFO7:20 amSan Francisco
28h 30m
2 stops
EAS8:50 pmSan Sebastián
Nov 18
EAS1:40 pmSan Sebastián
39h 48m
2 stops
SFO8:28 pmSan Francisco
$1,591
Find similar

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 November 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

Tue 11/25

5:30 pm-8:40 am

2 stops30h 10m

San Sebastián

Tue 12/2

9:30 pm-3:00 pm

2 stops26h 30m

$831

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 12/16

6:00 am-8:40 am

2 stops17h 40m

San Sebastián

Tue 12/23

9:30 pm-3:00 pm

2 stops50h 30m

$1,088

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 11/19

7:20 am-1:00 pm

2 stops20h 40m

San Sebastián

Wed 11/26

9:20 am-8:22 pm

2 stops20h 02m

$1,156

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 12/16

8:25 am-1:30 pm

2 stops20h 05m

San Sebastián

Tue 12/23

2:05 pm-2:30 pm

3 stops33h 25m

$1,436

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Fri 11/14

7:20 am-8:50 pm

2 stops28h 30m

San Sebastián

Tue 11/18

1:40 pm-8:28 pm

2 stops39h 48m

$1,530

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Fri 11/14

7:20 am-8:50 pm

2 stops28h 30m

San Sebastián

Tue 11/18

1:40 pm-8:28 pm

2 stops39h 48m

$1,591

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 12/16

7:25 pm-1:30 pm

3 stops33h 05m

San Sebastián

Tue 12/23

2:05 pm-2:30 pm

3 stops33h 25m

$1,814

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Thu 12/18

7:00 am-8:40 am

2 stops16h 40m

San Sebastián

Wed 12/31

9:20 am-11:21 pm

2 stops23h 01m

$2,161

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sat 11/29

4:35 pm-8:50 pm

3 stops43h 15m

$400

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Sat 11/29

4:35 pm-8:40 am

2 stops31h 05m

$436

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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

Direct flights

None
There are no direct flights from San Francisco to San Sebastian. There are no popular flight routes from San Francisco to San Sebastian.
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  • 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
3,005 reviews
Search Iberia flights
American AirlinesPriceFrom $714Free CancellationRating
7.2
11,036 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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