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Cheap flights from the United States to San Sebastian from $291

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United States to San Sebastian departing on 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from the United States to San Sebastian

Recent round-trip flight deals from the United States to San Sebastian

Enter your travel dates to find the best prices.
Iberia Logo
4:45 pm - 8:40 am
BOS
-
EAS
9h 55m
1 stop
Iberia Logo
1:40 pm - 8:50 pm
EAS
-
BOS
12h 10m
1 stop
$452Iberia
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
11:55 am - 8:40 am
BOS
-
EAS
14h 45m
2 stops
American Airlines Logo
1:40 pm - 8:50 pm
EAS
-
BOS
12h 10m
1 stop
$457American Airlines
Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
6:00 am - 8:40 am
BOS
-
EAS
20h 40m
2 stops
American Airlines Logo
9:20 am - 10:48 pm
EAS
-
BOS
18h 28m
2 stops
$492American Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
11:25 pm - 5:20 pm
JFK
-
EAS
11h 55m
1 stop
Multiple Airlines Logo
8:55 am - 9:40 pm
EAS
-
JFK
18h 45m
1 stop
$534Multiple Airlines
Thu, Apr 23 - Sun, Apr 26
Iberia Logo
10:20 pm - 8:50 pm
BOS
-
EAS
17h 30m
1 stop
Iberia Logo
9:20 am - 8:50 pm
EAS
-
BOS
16h 30m
1 stop
$561Iberia
Wed, Mar 18 - Wed, Mar 25
Iberia Logo
3:49 pm - 1:00 pm
BOS
-
EAS
16h 11m
2 stops
Iberia Logo
9:20 am - 8:50 pm
EAS
-
BOS
16h 30m
1 stop
$617Iberia
Wed, Mar 18 - Wed, Mar 25
Multiple Airlines Logo
11:25 pm - 5:20 pm
JFK
-
EAS
11h 55m
1 stop
Multiple Airlines Logo
8:55 am - 9:40 pm
EAS
-
JFK
18h 45m
1 stop
$655Multiple Airlines
Thu, Apr 9 - Sun, Apr 12
Iberia Logo
11:25 pm - 8:20 am
JFK
-
EAS
26h 55m
1 stop
Iberia Logo
8:55 am - 9:40 pm
EAS
-
JFK
18h 45m
1 stop
$667Iberia
Sat, Apr 11 - Sun, Apr 19
Iberia Logo
11:25 pm - 8:20 am
JFK
-
EAS
26h 55m
1 stop
Iberia Logo
8:55 am - 9:40 pm
EAS
-
JFK
18h 45m
1 stop
$697Iberia
Sat, Apr 11 - Sun, Apr 19
Multiple Airlines Logo
12:50 pm - 5:25 pm
ORD
-
EAS
21h 35m
2 stops
Multiple Airlines Logo
5:55 pm - 12:55 pm
EAS
-
ORD
26h 00m
2 stops
$711Multiple Airlines
Wed, Apr 15 - Sat, Apr 25

Avianca flights from United States to San Sebastian

Our best Avianca deals on United States to San Sebastian flight tickets
Avianca
Feb 19
ORD10:20 pmChicago O'Hare Intl
51h 20m
2 stops
EAS8:40 amSan Sebastián
Feb 23
EAS9:30 pmSan Sebastián
29h 50m
2 stops
ORD8:20 pmChicago O'Hare Intl
$1,504
Avianca
Feb 19
ORD10:20 pmChicago O'Hare Intl
51h 20m
2 stops
EAS8:40 amSan Sebastián
Feb 23
EAS9:20 amSan Sebastián
42h 00m
2 stops
ORD8:20 pmChicago O'Hare Intl
$1,516

Iberia flights from United States to San Sebastian

Our best Iberia deals on United States to San Sebastian flight tickets
Iberia
Mar 3
BOS4:45 pmBoston Logan Intl
9h 55m
1 stop
EAS8:40 amSan Sebastián
Mar 10
EAS1:40 pmSan Sebastián
12h 10m
1 stop
BOS8:50 pmBoston Logan Intl
$452
Iberia
Mar 18
BOS10:20 pmBoston Logan Intl
17h 30m
1 stop
EAS8:50 pmSan Sebastián
Mar 25
EAS9:20 amSan Sebastián
16h 30m
1 stop
BOS8:50 pmBoston Logan Intl
$561
Iberia
Mar 18
BOS3:49 pmBoston Logan Intl
16h 11m
2 stops
EAS1:00 pmSan Sebastián
Mar 25
EAS9:20 amSan Sebastián
16h 30m
1 stop
BOS8:50 pmBoston Logan Intl
$617

momondo Fare Finder

 
Customize your flight search to find flights from United States 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 February 3, 2026.
Use the filters below to find and compare flights from the United States to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 3/3

4:45 pm-8:40 am

1 stop9h 55m

San Sebastián

Tue 3/10

1:40 pm-8:50 pm

1 stop12h 10m

$452

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 3/3

11:55 am-8:40 am

2 stops14h 45m

San Sebastián

Tue 3/10

1:40 pm-8:50 pm

1 stop12h 10m

$457

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Tue 3/3

6:00 am-8:40 am

2 stops20h 40m

San Sebastián

Tue 3/10

9:20 am-10:48 pm

2 stops18h 28m

$492

New YorkSan Sebastian

JFK - EAS

JFKEAS

New York John F Kennedy Intl

Thu 4/23

11:25 pm-5:20 pm

1 stop11h 55m

San Sebastián

Sun 4/26

8:55 am-9:40 pm

1 stop18h 45m

$534

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 3/18

10:20 pm-8:50 pm

1 stop17h 30m

San Sebastián

Wed 3/25

9:20 am-8:50 pm

1 stop16h 30m

$561

BostonSan Sebastian

BOS - EAS

BOSEAS

Boston Logan Intl

Wed 3/18

3:49 pm-1:00 pm

2 stops16h 11m

San Sebastián

Wed 3/25

9:20 am-8:50 pm

1 stop16h 30m

$617

New YorkSan Sebastian

JFK - EAS

JFKEAS

New York John F Kennedy Intl

Thu 4/9

11:25 pm-5:20 pm

1 stop11h 55m

San Sebastián

Sun 4/12

8:55 am-9:40 pm

1 stop18h 45m

$655

New YorkSan Sebastian

JFK - EAS

JFKEAS

New York John F Kennedy Intl

Sat 4/11

11:25 pm-8:20 am

1 stop26h 55m

San Sebastián

Sun 4/19

8:55 am-9:40 pm

1 stop18h 45m

$667

New YorkSan Sebastian

JFK - EAS

JFKEAS

New York John F Kennedy Intl

Sat 4/11

11:25 pm-8:20 am

1 stop26h 55m

San Sebastián

Sun 4/19

8:55 am-9:40 pm

1 stop18h 45m

$697

ChicagoSan Sebastian

ORD - EAS

ORDEAS

Chicago O'Hare Intl

Wed 4/15

12:50 pm-5:25 pm

2 stops21h 35m

San Sebastián

Sat 4/25

5:55 pm-12:55 pm

2 stops26h 00m

$711

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Sebastian from

How to get the cheapest flight ticket from United States 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 month to fly to San Sebastian?

The month of October is, on average, the cheapest month to fly to San Sebastian from United States, with most prices found around $643. If you are unable to visit San Sebastian during the month of October, then departing from United States during the month September is also very affordable. Most momondo users find prices during this month for around $697.

Can stopping save me money on United States to San Sebastian flights?

You could potentially save up to 8% on your flight if you consider stops on a United States to San Sebastian flight.

Cheap United States to San Sebastian flight deals and tips

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

Fastest flight time

9h 45m

Direct flights

None
The fastest flight from United States to San Sebastian takes 9h 45m
There are no direct flights from United States to San Sebastian. There are no popular flight routes from United States to San Sebastian.
Search flight deals

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

    Prices for flights from United States to San Sebastián Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United States 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.

Best airlines flying from United States to San Sebastian

Compare and see reviews for airlines that fly from United States to San Sebastian with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $72Free CancellationRating
7.0
3,101 reviews
Search Iberia flights
American AirlinesPriceFrom $450Free CancellationRating
7.2
11,212 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 United States to San Sebastian?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Sebastian from United States.

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

Yes. All flights to San Sebastian from United States on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for United States to San Sebastian flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of United States to San Sebastian flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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