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$1,113+ Cheap flights from Philadelphia (PHL) to San Sebastian (EAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — EAS
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheap flight deals from Philadelphia to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to San Sebastian (EAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,113
(American Airlines)
Provider with most accurate pricing for Philadelphia-San Sebastián flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-San Sebastián flights.
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From Philadelphia to San Sebastián
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Find flight deals from Philadelphia to San Sebastian

Cheapest flights from Philadelphia to San Sebastian
Explore the most affordable flight options available from Philadelphia to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:00 amPHL - EAS
2 stops20h 40mAmerican Airlines
Sun 11/169:20 amEAS - PHL
2 stops30h 07mAmerican Airlines
Deal found 10/25$1,113
This Iberia deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:55 pmPHL - EAS
1 stop11h 05mIberia
Sun 11/169:20 amEAS - PHL
1 stop12h 20mIberia
Deal found 10/27$1,727

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 28, 2025.
Use the filters below to find and compare flights from Philadelphia to San Sebastian that are best for you.

Fly from

Philadelphia

Fly to

San Sebastian

Route

Depart

Return

Price

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Wed 11/12

6:00 am-8:40 am

2 stops20h 40m

San Sebastián

Sun 11/16

9:20 am-9:27 am

2 stops30h 07m

$1,113

PhiladelphiaSan Sebastian

PHL - EAS

PHLEAS

Philadelphia

Wed 11/12

7:55 pm-1:00 pm

1 stop11h 05m

San Sebastián

Sun 11/16

9:20 am-3:40 pm

1 stop12h 20m

$1,727

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Compare providers for flights from Philadelphia to San Sebastian

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to San Sebastian in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-San Sebastian flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Philadelphia-San Sebastian flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Philadelphia-San Sebastian flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-San Sebastian flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-San Sebastian flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to San Sebastian

What is the cheapest month to book a flight from Philadelphia to San Sebastian?

Currently, October is the cheapest month in which you can book a flight from Philadelphia to San Sebastian (average of $361). Flying from Philadelphia to San Sebastian in August is currently the most expensive (average of $638). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to EAS?

Find hourly flight availability from Philadelphia to San Sebastian. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 28, 2025.

It’s typically best to fly out from Philadelphia to San Sebastian in the morning. Doing so could potentially save you 43% on the flight price compared to flying in the afternoon, which is usually more expensive.

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to San Sebastian. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Philadelphia to San Sebastian?

    Departing from Philadelphia to San Sebastian will take you 11h 05m. There are 3673 mi between Philadelphia and San Sebastian. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Philadelphia to San Sebastian that include hotel bookings?

    Yes. In addition to deals on Philadelphia to San Sebastian flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to San Sebastian?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to San Sebastian.

  • Can I find deals for business class flights from Philadelphia to San Sebastian?

    Yes. Cheapflights offers flight deals from Philadelphia to San Sebastian by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to San Sebastian?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to San Sebastian (average of $361). Flying from Philadelphia to San Sebastian in August is currently the most expensive (average of $638). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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