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Cheap flights from London Heathrow Airport to San Sebastian from £72

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — EAS
20 Aug — 27 Aug1
1 adult

Cheap flight deals from Heathrow to San Sebastian

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) 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 15 August 2025.

Round-trip from

£135

One-way from

£72

Popular in

May

Cheapest in

February

Average price

£316
Vueling
  • Vueling
  • 5/11-8/11
  • 2 total stops
  • 33h 35m total
  • London to San Sebastian
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Vueling
  • Vueling
  • 15/10
  • 1 total stop
  • 10h 35m total
  • London to San Sebastian
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Heathrow to San Sebastian

Cheapest flights from Heathrow to San Sebastian
Explore the most affordable flight options available from Heathrow to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2025.

Wed 5/1109:55LHR - EAS
1 stop26h 35mVueling
Sat 8/1114:05EAS - LHR
1 stop7h 00mVueling
Deal found 13/8£135
Wed 5/1120:50LHR - EAS
2 stops15h 40mMultiple Airlines
Sat 8/1114:05EAS - LHR
1 stop7h 00mMultiple Airlines
Deal found 13/8£153
Sat 27/920:50LHR - EAS
1 stop11h 00mMultiple Airlines
Sat 4/1020:30EAS - LHR
2 stops13h 40mMultiple Airlines
Deal found 13/8£168
Wed 24/920:50LHR - EAS
1 stop10h 35mVueling
Wed 1/1009:10EAS - LHR
1 stop11h 55mVueling
Deal found 13/8£191
Wed 24/909:55LHR - EAS
1 stop6h 25mMultiple Airlines
Tue 30/921:30EAS - LHR
1 stop11h 55mMultiple Airlines
Deal found 13/8£197
Fri 12/920:50LHR - EAS
1 stop10h 30mMultiple Airlines
Wed 17/920:30EAS - LHR
2 stops18h 45mMultiple Airlines
Deal found 14/8£205
Wed 3/920:50LHR - EAS
1 stop10h 40mVueling
Wed 24/909:10EAS - LHR
1 stop11h 55mVueling
Deal found 13/8£208
Fri 24/1020:50LHR - EAS
1 stop10h 35mMultiple Airlines
Tue 28/1021:30EAS - LHR
1 stop11h 55mMultiple Airlines
Deal found 14/8£210
Fri 12/920:50LHR - EAS
1 stop10h 30mMultiple Airlines
Tue 16/920:10EAS - LHR
2 stops19h 35mMultiple Airlines
Deal found 14/8£211
Wed 24/920:50LHR - EAS
1 stop10h 35mMultiple Airlines
Wed 1/1013:40EAS - LHR
2 stops9h 15mMultiple Airlines
Deal found 13/8£214

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow 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 858,174 searches. Data last updated 15 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Sebastian that are best for you.

Fly from

Heathrow

Fly to

San Sebastian

Route

Depart

Return

Price

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Wed 5/11

09:55-13:30

1 stop26h 35m

San Sebastián

Sat 8/11

14:05-20:05

1 stop7h 00m

£135

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Wed 5/11

20:50-13:30

2 stops15h 40m

San Sebastián

Sat 8/11

14:05-20:05

1 stop7h 00m

£153

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Sat 27/9

20:50-08:50

1 stop11h 00m

San Sebastián

Sat 4/10

20:30-09:10

2 stops13h 40m

£168

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Fri 30/1

06:05-13:30

1 stop6h 25m

San Sebastián

Wed 4/2

14:05-20:50

1 stop7h 45m

£174

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Sat 31/1

13:25-20:50

1 stop6h 25m

San Sebastián

Sun 1/2

09:20-14:20

1 stop6h 00m

£178

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Sun 1/2

13:20-20:50

1 stop6h 30m

San Sebastián

Wed 4/2

13:40-18:15

1 stop5h 35m

£181

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Tue 27/1

06:05-13:00

1 stop5h 55m

San Sebastián

Thu 29/1

13:40-18:15

1 stop5h 35m

£181

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Tue 27/1

06:05-13:00

1 stop5h 55m

San Sebastián

Wed 4/2

13:40-18:15

1 stop5h 35m

£181

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Tue 27/1

06:05-13:00

1 stop5h 55m

San Sebastián

Fri 30/1

13:40-18:15

1 stop5h 35m

£181

LondonSan Sebastian

LHR - EAS

LHREAS

London Heathrow

Sat 31/1

13:25-20:50

1 stop6h 25m

San Sebastián

Wed 4/2

13:40-18:15

1 stop5h 35m

£181

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 23 results
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Best time to book a flight from Heathrow to San Sebastian

Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Heathrow with our price prediction graph.
Estimated return 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 London Heathrow Airport to San Sebastian

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

Find hourly flight availability from Heathrow 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 15 August 2025.

It’s typically best to fly out from London Heathrow Airport to San Sebastian in the evening. Doing so could potentially save you 32% on the flight price compared to flying at midday, which is usually more expensive.

How much does it cost for a return flight from London Heathrow Airport to San Sebastian?

What’s the top stopover airport for flights from London Heathrow Airport to San Sebastian?

Share of one-stop return flights from London Heathrow Airport to San Sebastian chosen by Cheapflights users in the past 12 months, using the same stopover each way.

Madrid (MAD) – chosen by Cheapflights users on 90% of one-stop itineraries from London Heathrow Airport to San Sebastian on Cheapflights.

What’s the cheapest stopover airport for flights from London Heathrow Airport to San Sebastian?

Average return fare for one-stop flights from London Heathrow Airport to San Sebastian, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Barcelona (BCN) is the most affordable one-stop option, with an average return flight price of £167.

What’s the fastest stopover option from London Heathrow Airport to San Sebastian?

Shortest average travel time for one-stop one-way flights from London Heathrow Airport to San Sebastian, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Munich (MUC) have the shortest average one-way travel time for one-stop routes: 6h 00m.

Which airport typically offers the quickest stopover for flights from London Heathrow Airport to San Sebastian?

Average stopover duration for one-stop one-way flights from London Heathrow Airport to San Sebastian, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Madrid (MAD) offer the fastest connection on this route, with an average stopover time of 3h 31m.

Reviews of airlines servicing San Sebastian

Get insights into the airlines that provide service to San Sebastian. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Sebastian. Reviews last updated 15 August 2025.
See what other customers who have flown with Iberia from London Heathrow Airport to San Sebastian have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Iberia
7.0
Good
2,882 reviews
Check prices

Crew

7.6

Boarding

7.1

Food

6.3

Comfort

6.7

Entertainment

6.6

Overall

7.0

Reviews

1 / 20
6.0
Good

David,May 2025

JFK - MAD

Unfortunately carry on bag over head was full. I was seated 27J and had to place my carry on by seat 8 .. other then that it was a good flight
Iberia
7.0
Good
2,882 reviews
Iberia
7.0
Good
2,882 reviews
Check prices

Crew

7.6

Boarding

7.1

Food

6.3

Comfort

6.7

Entertainment

6.6

Overall

7.0

Reviews

1 / 20
6.0
Good

David,May 2025

JFK - MAD

Unfortunately carry on bag over head was full. I was seated 27J and had to place my carry on by seat 8 .. other then that it was a good flight

Related info for your journey

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

  • What airport do you fly into for flights to San Sebastian from London Heathrow?

    Located just 9.7 mi from the city center, San Sebastián is the airport most travelers will use when flying to San Sebastian from London Heathrow. Booking flights from London Heathrow to San Sebastián (EAS) should be relatively easy as there are 0 daily inbound flights from London Heathrow from 1 airline.

  • What is the cheapest airline to fly from London Heathrow Airport to San Sebastian round-trip?

    Flying on Iberia is currently your cheapest option to San Sebastian, with prices starting at £178. You may be able to fly from London Heathrow Airport to San Sebastian for 33% less than the average price by searching for this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Heathrow 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Heathrow to San Sebastian

Discover the top airline that operate flights from Heathrow to San Sebastian. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 August 2025.
AirlineCheapestAverageFlexibilityOn-time
IberiaCheapest£178Average£288FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to San Sebastian?

Cheapflights helps you search for flights from Heathrow to San Sebastian via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to San Sebastian?

Cheapflights simply makes it quick and affordable to book flights from Heathrow to San Sebastian by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Heathrow to San Sebastian with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to San Sebastian flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to San Sebastian become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to San Sebastian on Cheapflights with our Price Alert feature and get notified when better prices are available.

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