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Cheap flights from Philadelphia to San Sebastian from $624

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to San Sebastian departing on 4/15. 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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Find the cheapest flights from Philadelphia to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
Iberia Logo
8:15 pm - 8:40 am
PHL
-
EAS
30h 25m
1 stop
Iberia Logo
1:40 pm - 6:55 pm
EAS
-
PHL
35h 15m
2 stops
$624Iberia
Wed, Apr 15 - Wed, Apr 22
Iberia Logo
10:05 pm - 8:50 pm
PHL
-
EAS
40h 45m
2 stops
Iberia Logo
9:20 am - 6:55 pm
EAS
-
PHL
39h 35m
2 stops
$675Iberia
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
8:15 pm - 8:40 am
PHL
-
EAS
30h 25m
1 stop
Multiple Airlines Logo
8:55 am - 3:50 pm
EAS
-
PHL
12h 55m
1 stop
$804Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
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
$833Multiple Airlines
Fri, Jul 31 - Fri, Aug 7
Iberia Logo
7:44 pm - 8:50 pm
PHL
-
EAS
43h 06m
2 stops
Iberia Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$836Iberia
Sat, Aug 1 - Sun, Aug 9
Iberia Logo
10:05 pm - 8:50 pm
PHL
-
EAS
40h 45m
2 stops
Iberia Logo
9:30 pm - 9:00 pm
EAS
-
PHL
29h 30m
2 stops
$840Iberia
Sat, Aug 1 - Sun, Aug 9
Multiple Airlines Logo
8:30 pm - 8:40 am
PHL
-
EAS
30h 10m
1 stop
Multiple Airlines Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$872Multiple Airlines
Sat, Aug 1 - Sun, Aug 9
Iberia Logo
5:50 pm - 8:50 pm
PHL
-
EAS
21h 00m
2 stops
Iberia Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$874Iberia
Fri, Jul 31 - Fri, Aug 7
Iberia Logo
8:15 pm - 8:50 pm
PHL
-
EAS
18h 35m
1 stop
Iberia Logo
9:20 am - 2:23 pm
EAS
-
PHL
35h 03m
2 stops
$906Iberia
Fri, Apr 17 - Fri, Apr 24
Multiple Airlines Logo
8:30 pm - 8:40 am
PHL
-
EAS
30h 10m
1 stop
Multiple Airlines Logo
9:30 pm - 5:35 pm
EAS
-
PHL
26h 05m
1 stop
$910Multiple Airlines
Sun, Aug 2 - Mon, Aug 10

Iberia flights from Philadelphia to San Sebastian

Our best Iberia deals on Philadelphia to San Sebastian flight tickets
Iberia
Apr 15
PHL8:15 pmPhiladelphia
30h 25m
1 stop
EAS8:40 amSan Sebastián
Apr 22
EAS1:40 pmSan Sebastián
35h 15m
2 stops
PHL6:55 pmPhiladelphia
$624
Iberia
Apr 15
PHL10:05 pmPhiladelphia
40h 45m
2 stops
EAS8:50 pmSan Sebastián
Apr 22
EAS9:20 amSan Sebastián
39h 35m
2 stops
PHL6:55 pmPhiladelphia
$675
Iberia
Mar 10
PHL10:10 pmPhiladelphia
29h 30m
2 stops
EAS8:40 amSan Sebastián
Mar 17
EAS9:30 pmSan Sebastián
22h 35m
2 stops
PHL3:05 pmPhiladelphia
$797

American Airlines flights from Philadelphia to San Sebastian

Our best American Airlines deals on Philadelphia to San Sebastian flight tickets
American Airlines
Jun 19
PHL1:53 pmPhiladelphia
17h 07m
2 stops
EAS1:00 pmSan Sebastián
Jun 27
EAS1:40 pmSan Sebastián
17h 18m
2 stops
PHL12:58 amPhiladelphia
$953
American Airlines
Apr 17
PHL11:50 amPhiladelphia
14h 50m
2 stops
EAS8:40 amSan Sebastián
Apr 24
EAS9:20 amSan Sebastián
20h 39m
2 stops
PHL11:59 pmPhiladelphia
$1,006
American Airlines
Aug 2
PHL10:20 pmPhiladelphia
32h 40m
2 stops
EAS1:00 pmSan Sebastián
Aug 10
EAS9:20 amSan Sebastián
17h 40m
2 stops
PHL9:00 pmPhiladelphia
$1,029

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 March 4, 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

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Wed 4/15

8:15 pm-8:40 am

1 stop30h 25m

San Sebastián

Wed 4/22

1:40 pm-6:55 pm

2 stops35h 15m

$624

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Wed 4/15

10:05 pm-8:50 pm

2 stops40h 45m

San Sebastián

Wed 4/22

9:20 am-6:55 pm

2 stops39h 35m

$675

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Wed 4/15

8:15 pm-8:40 am

1 stop30h 25m

San Sebastián

Wed 4/22

8:55 am-3:50 pm

1 stop12h 55m

$804

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 7/31

8:30 pm-8:50 pm

1 stop18h 20m

San Sebastián

Fri 8/7

9:30 pm-5:35 pm

1 stop26h 05m

$833

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Sat 8/1

7:44 pm-8:50 pm

2 stops43h 06m

San Sebastián

Sun 8/9

9:30 pm-5:35 pm

1 stop26h 05m

$836

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Sat 8/1

10:05 pm-8:50 pm

2 stops40h 45m

San Sebastián

Sun 8/9

9:30 pm-9:00 pm

2 stops29h 30m

$840

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Sat 8/1

8:30 pm-8:40 am

1 stop30h 10m

San Sebastián

Sun 8/9

9:30 pm-5:35 pm

1 stop26h 05m

$872

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 7/31

5:50 pm-8:50 pm

2 stops21h 00m

San Sebastián

Fri 8/7

9:30 pm-5:35 pm

1 stop26h 05m

$874

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Fri 4/17

8:15 pm-8:50 pm

1 stop18h 35m

San Sebastián

Fri 4/24

9:20 am-2:23 pm

2 stops35h 03m

$906

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Sun 8/2

8:30 pm-8:40 am

1 stop30h 10m

San Sebastián

Mon 8/10

9:30 pm-5:35 pm

1 stop26h 05m

$910

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?

United Airlines, Iberia and TAP AIR PORTUGAL are the top three most popular airlines that fly to San Sebastian from Philadelphia according to our data. United Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to San Sebastian. Keep in mind that there are 7 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

  • 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 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.

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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