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Cheap flights from San Francisco to San Sebastian from $687

This is the cheapest round-trip 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 1/8. 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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Iberia Logo
7:00 am - 1:00 pmSFO-EAS
21h 00m2 stops
Iberia Logo
1:40 pm - 12:47 amEAS-SFO
20h 07m2 stops
$687Iberia
Find Deal
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
12:17 am - 1:00 pmSFO-EAS
27h 43m2 stops
American Airlines Logo
9:20 am - 10:34 pmEAS-SFO
22h 14m2 stops
$782American Airlines
Find Deal
Tue, Jan 20 - Sun, Jan 25
Multiple Airlines Logo
7:55 pm - 1:30 pmSFO-EAS
32h 35m3 stops
Multiple Airlines Logo
2:05 pm - 4:05 pmEAS-SFO
35h 00m2 stops
$870Multiple Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
12:17 am - 1:00 pmSFO-EAS
27h 43m2 stops
American Airlines Logo
9:20 am - 10:34 pmEAS-SFO
22h 14m2 stops
$887American Airlines
Find Deal
Tue, Jan 20 - Sun, Jan 25
Multiple Airlines Logo
7:55 pm - 1:30 pmSFO-EAS
32h 35m3 stops
Multiple Airlines Logo
2:05 pm - 4:05 pmEAS-SFO
35h 00m3 stops
$1,015Multiple Airlines
Find Deal
Thu, Jan 8 - Thu, Jan 15
Iberia Logo
12:46 am - 1:00 pmSFO-EAS
27h 14m2 stops
Iberia Logo
1:40 pm - 12:47 amEAS-SFO
20h 07m2 stops
$1,119Iberia
Find Deal
Wed, Jan 7 - Thu, Jan 15
Iberia Logo
5:45 pm - 8:50 pmSFO-EAS
18h 05m1 stop
Iberia Logo
9:20 am - 4:10 pmEAS-SFO
15h 50m1 stop
$4,280Iberia
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Tue, Apr 14 - Thu, May 7
Multiple Airlines Logo
4:35 pm - 8:50 pmSFO-EAS
19h 15m2 stops
Multiple Airlines Logo
9:20 am - 4:10 pmEAS-SFO
15h 50m1 stop
$4,347Multiple Airlines
Find Deal
Tue, Apr 14 - Thu, May 7
Iberia Logo
7:30 pm - 8:40 amSFO-EAS
28h 10m2 stops
Iberia Logo
9:20 am - 9:04 pmEAS-SFO
20h 44m2 stops
$4,361Iberia
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Wed, Apr 15 - Fri, May 8
Multiple Airlines Logo
4:35 pm - 8:50 pmSFO-EAS
19h 15m2 stops
Multiple Airlines Logo
9:20 am - 4:10 pmEAS-SFO
15h 50m1 stop
$4,575Multiple Airlines
Find Deal
Thu, Apr 16 - Thu, May 7

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 20
SFO12:17 amSan Francisco
27h 43m
2 stops
EAS1:00 pmSan Sebastián
Jan 25
EAS9:20 amSan Sebastián
22h 14m
2 stops
SFO10:34 pmSan Francisco
$782
Find similar
American Airlines
Jan 20
SFO12:17 amSan Francisco
27h 43m
2 stops
EAS1:00 pmSan Sebastián
Jan 25
EAS9:20 amSan Sebastián
22h 14m
2 stops
SFO10:34 pmSan Francisco
$887
Find similar

Iberia flights from San Francisco to San Sebastian

Our best Iberia deals on San Francisco to San Sebastian flight tickets
Iberia
Jan 8
SFO7:00 amSan Francisco
21h 00m
2 stops
EAS1:00 pmSan Sebastián
Jan 15
EAS1:40 pmSan Sebastián
20h 07m
2 stops
SFO12:47 amSan Francisco
$687
Find similar
Iberia
Jan 7
SFO12:46 amSan Francisco
27h 14m
2 stops
EAS1:00 pmSan Sebastián
Jan 15
EAS1:40 pmSan Sebastián
20h 07m
2 stops
SFO12:47 amSan Francisco
$1,119
Find similar
Iberia
Apr 14
SFO5:45 pmSan Francisco
18h 05m
1 stop
EAS8:50 pmSan Sebastián
May 7
EAS9:20 amSan Sebastián
15h 50m
1 stop
SFO4:10 pmSan Francisco
$4,280
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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 November 26, 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 1/8

7:00 am-1:00 pm

2 stops21h 00m

San Sebastián

Thu 1/15

1:40 pm-12:47 am

2 stops20h 07m

$687

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 1/20

12:17 am-1:00 pm

2 stops27h 43m

San Sebastián

Sun 1/25

9:20 am-10:34 pm

2 stops22h 14m

$782

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Thu 1/8

7:55 pm-1:30 pm

3 stops32h 35m

San Sebastián

Thu 1/15

2:05 pm-4:05 pm

2 stops35h 00m

$870

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 1/20

12:17 am-1:00 pm

2 stops27h 43m

San Sebastián

Sun 1/25

9:20 am-10:34 pm

2 stops22h 14m

$887

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Thu 1/8

7:55 pm-1:30 pm

3 stops32h 35m

San Sebastián

Thu 1/15

2:05 pm-4:05 pm

3 stops35h 00m

$1,015

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 1/7

12:46 am-1:00 pm

2 stops27h 14m

San Sebastián

Thu 1/15

1:40 pm-12:47 am

2 stops20h 07m

$1,119

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 4/14

5:45 pm-8:50 pm

1 stop18h 05m

San Sebastián

Thu 5/7

9:20 am-4:10 pm

1 stop15h 50m

$4,280

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Tue 4/14

4:35 pm-8:50 pm

2 stops19h 15m

San Sebastián

Thu 5/7

9:20 am-4:10 pm

1 stop15h 50m

$4,347

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Wed 4/15

7:30 pm-8:40 am

2 stops28h 10m

San Sebastián

Fri 5/8

9:20 am-9:04 pm

2 stops20h 44m

$4,361

San FranciscoSan Sebastian

SFO - EAS

SFOEAS

San Francisco

Thu 4/16

4:35 pm-8:50 pm

2 stops19h 15m

San Sebastián

Thu 5/7

9:20 am-4:10 pm

1 stop15h 50m

$4,575

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

18h 20m

Direct flights

None
The fastest flight from San Francisco to San Sebastian takes 18h 20m
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 18h 05m, 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
3,034 reviews
Search Iberia flights
American AirlinesPriceFrom $714Free CancellationRating
7.2
11,038 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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