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Cheap flights from Philadelphia to San Sebastian from $924

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to San Sebastian departing on 6/22. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Philadelphia to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:30 pm - 8:50 pm
PHL
-
EAS
18h 20m
1 stop
Multiple Airlines Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$994Multiple Airlines
Fri, Aug 21 - Sun, Aug 30
Iberia Logo
12:50 pm - 8:50 pm
PHL
-
EAS
26h 00m
2 stops
Iberia Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$998Iberia
Fri, Aug 21 - Sun, Aug 30
Iberia Logo
12:50 pm - 8:50 pm
PHL
-
EAS
26h 00m
2 stops
Iberia Logo
9:30 pm - 9:00 pm
EAS
-
PHL
29h 30m
2 stops
$1,008Iberia
Fri, Aug 21 - Sun, Aug 30
British Airways Logo
8:30 pm - 8:50 pm
PHL
-
EAS
18h 20m
1 stop
British Airways Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$1,078British Airways
Fri, Jul 31 - Sat, Aug 8
Iberia Logo
5:30 pm - 8:50 pm
PHL
-
EAS
21h 20m
2 stops
Iberia Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$1,082Iberia
Fri, Jul 31 - Sat, Aug 8
Iberia Logo
8:30 pm - 8:40 am
PHL
-
EAS
30h 10m
1 stop
Iberia Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$1,104Iberia
Wed, Aug 5 - Tue, Aug 18
Multiple Airlines Logo
4:15 pm - 8:40 am
PHL
-
EAS
10h 25m
1 stop
Multiple Airlines Logo
9:30 pm - 5:50 pm
EAS
-
PHL
26h 20m
1 stop
$1,111Multiple Airlines
Fri, Sep 18 - Wed, Sep 30
British Airways Logo
10:00 am - 8:50 pm
PHL
-
EAS
28h 50m
2 stops
British Airways Logo
9:30 pm - 7:51 pm
EAS
-
PHL
28h 21m
2 stops
$1,114British Airways
Wed, Aug 5 - Wed, Aug 19
British Airways Logo
11:21 am - 8:50 pm
PHL
-
EAS
27h 29m
2 stops
British Airways Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$1,118British Airways
Wed, Aug 5 - Wed, Aug 19
Iberia Logo
12:55 pm - 8:50 pm
PHL
-
EAS
25h 55m
2 stops
Iberia Logo
9:30 pm - 1:45 pm
EAS
-
PHL
46h 15m
2 stops
$1,121Iberia
Fri, Jul 31 - Sat, Aug 8

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Iberia flights from Philadelphia to San Sebastian

Our best Iberia deals on Philadelphia to San Sebastian flight tickets
Iberia
Aug 21
PHL12:50 pmPhiladelphia
26h 00m
2 stops
EAS8:50 pmSan Sebastián
Aug 30
EAS9:30 pmSan Sebastián
26h 05m
1 stop
PHL5:35 pmPhiladelphia
$998
Iberia
Aug 21
PHL12:50 pmPhiladelphia
26h 00m
2 stops
EAS8:50 pmSan Sebastián
Aug 30
EAS9:30 pmSan Sebastián
29h 30m
2 stops
PHL9:00 pmPhiladelphia
$1,008
Iberia
Jul 31
PHL5:30 pmPhiladelphia
21h 20m
2 stops
EAS8:50 pmSan Sebastián
Aug 8
EAS9:30 pmSan Sebastián
26h 05m
1 stop
PHL5:35 pmPhiladelphia
$1,082

British Airways flights from Philadelphia to San Sebastian

Our best British Airways deals on Philadelphia to San Sebastian flight tickets
British Airways
Jul 31
PHL8:30 pmPhiladelphia
18h 20m
1 stop
EAS8:50 pmSan Sebastián
Aug 8
EAS9:30 pmSan Sebastián
26h 05m
1 stop
PHL5:35 pmPhiladelphia
$1,078
British Airways
Aug 5
PHL10:00 amPhiladelphia
28h 50m
2 stops
EAS8:50 pmSan Sebastián
Aug 19
EAS9:30 pmSan Sebastián
28h 21m
2 stops
PHL7:51 pmPhiladelphia
$1,114
British Airways
Aug 5
PHL11:21 amPhiladelphia
27h 29m
2 stops
EAS8:50 pmSan Sebastián
Aug 19
EAS9:30 pmSan Sebastián
26h 05m
1 stop
PHL5:35 pmPhiladelphia
$1,118

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 April 23, 2026.
Use the filters below to find and compare flights from Philadelphia to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 8/21

8:30 pm-8:50 pm

1 stop18h 20m

San Sebastián

Sun 8/30

9:30 pm-5:35 pm

1 stop26h 05m

$994

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 8/21

12:50 pm-8:50 pm

2 stops26h 00m

San Sebastián

Sun 8/30

9:30 pm-5:35 pm

1 stop26h 05m

$998

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 8/21

12:50 pm-8:50 pm

2 stops26h 00m

San Sebastián

Sun 8/30

9:30 pm-9:00 pm

2 stops29h 30m

$1,008

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 7/31

8:30 pm-8:50 pm

1 stop18h 20m

San Sebastián

Sat 8/8

9:30 pm-5:35 pm

1 stop26h 05m

$1,078

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 7/31

5:30 pm-8:50 pm

2 stops21h 20m

San Sebastián

Sat 8/8

9:30 pm-5:35 pm

1 stop26h 05m

$1,082

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Wed 8/5

8:30 pm-8:40 am

1 stop30h 10m

San Sebastián

Tue 8/18

9:30 pm-5:35 pm

1 stop26h 05m

$1,104
Quickest round-trip

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 9/18

4:15 pm-8:40 am

1 stop10h 25m

San Sebastián

Wed 9/30

9:30 pm-5:50 pm

1 stop26h 20m

$1,111

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Wed 8/5

10:00 am-8:50 pm

2 stops28h 50m

San Sebastián

Wed 8/19

9:30 pm-7:51 pm

2 stops28h 21m

$1,114

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Wed 8/5

11:21 am-8:50 pm

2 stops27h 29m

San Sebastián

Wed 8/19

9:30 pm-5:35 pm

1 stop26h 05m

$1,118

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 7/31

12:55 pm-8:50 pm

2 stops25h 55m

San Sebastián

Sat 8/8

9:30 pm-1:45 pm

2 stops46h 15m

$1,121

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to San Sebastian from

How to get the cheapest flight ticket from Philadelphia 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 airline that flies from Philadelphia to San Sebastián?

Iberia is the most popular carrier operating from Philadelphia to San Sebastián

What airlines fly to San Sebastian?

Iberia, United Airlines and Air Europa are the top three most popular airlines that fly to San Sebastian from Philadelphia according to our data. Iberia is the first choice among our users, with 39% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 6 different airlines that fly to San Sebastian on a routine basis, so you have a few additional options to choose from.

When to book flights from Philadelphia to San Sebastian

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

Cheap Philadelphia to San Sebastian (PHL to EAS) flight deals and tips

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

Fastest flight time

10h 25m

Direct flights

None
The fastest flight from Philadelphia to San Sebastian takes 10h 25m
There are no direct flights from Philadelphia to San Sebastian. There are no popular flight routes from Philadelphia to San Sebastian.
Search flight deals

Frequently asked questions about flying from Philadelphia to San Sebastian

  • How far is Philadelphia to San Sebastián by plane?

    There are 3658.8 mi between Philadelphia and San Sebastián. 10h 25m is a normal flight duration for this route.

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

    Prices for flights from Philadelphia Airport to San Sebastián Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Philadelphia 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 Philadelphia to San Sebastian?

Best airlines flying from Philadelphia to San Sebastian

Compare and see reviews for airlines that fly from Philadelphia to San Sebastian with momondo
Airline
Rating
Free Cancellation
Price
IberiaPriceFrom $947Free CancellationRating
7.0
3,191 reviews
Search Iberia 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 Philadelphia to San Sebastian?

Finding the right flight to San Sebastian from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Sebastian quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Philadelphia to San Sebastian flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Philadelphia and San Sebastian by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Philadelphia to San Sebastian now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Sebastian and let you know when they change.

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