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Cheap flights from San Sebastian to London Heathrow Airport from £49

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 29/11. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — LHR
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from San Sebastian to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from San Sebastian (EAS) to Heathrow (LHR). 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 16 September 2025.

Round-trip from

£149

One-way from

£49

Popular in

June

Cheapest in

November

Average price

£139
Iberia
  • Iberia
  • 19/1-20/1
  • 2 total stops
  • 21h 10m total
  • San Sebastian to London
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Vueling
  • Vueling
  • 29/11
  • 1 total stop
  • 7h 00m total
  • San Sebastian to London
Search Deals
Highest demand for flights based on searches. 39% potential increase in price (£121 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£20 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from San Sebastian to Heathrow

Cheapest flights from San Sebastian to Heathrow
Explore the most affordable flight options available from San Sebastian to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Wed 24/1214:05EAS - LHR
1 stop4h 55mVueling
Thu 25/1218:50LHR - EAS
1 stop17h 40mVueling
Deal found 14/9£151
Thu 27/1114:05EAS - LHR
1 stop4h 55mMultiple Airlines
Sun 30/1110:45LHR - EAS
1 stop20h 55mMultiple Airlines
Deal found 15/9£175
Sat 13/1214:05EAS - LHR
1 stop7h 00mMultiple Airlines
Mon 15/1213:25LHR - EAS
1 stop6h 25mMultiple Airlines
Deal found 16/9£180
Wed 29/1021:30EAS - LHR
1 stop12h 45mMultiple Airlines
Wed 5/1119:40LHR - EAS
1 stop12h 00mMultiple Airlines
Deal found 14/9£184
Thu 30/1021:30EAS - LHR
1 stop12h 45mIberia
Thu 6/1109:15LHR - EAS
1 stop22h 25mIberia
Deal found 15/9£198
Thu 20/1121:30EAS - LHR
1 stop17h 00mIberia
Sun 23/1109:15LHR - EAS
1 stop22h 25mIberia
Deal found 14/9£209
Tue 14/1013:30EAS - LHR
1 stop7h 35mMultiple Airlines
Thu 16/1009:15LHR - EAS
1 stop22h 25mMultiple Airlines
Deal found 14/9£210
Fri 7/1121:30EAS - LHR
1 stop11h 55mIberia
Mon 10/1108:25LHR - EAS
1 stop23h 15mIberia
Deal found 14/9£210
Thu 16/1009:00EAS - LHR
1 stop12h 05mMultiple Airlines
Sun 19/1018:45LHR - EAS
1 stop12h 55mMultiple Airlines
Deal found 16/9£211

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Sebastian to Heathrow 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 16 September 2025.
Use the filters below to find and compare flights from San Sebastian to London Heathrow Airport that are best for you.

Fly from

San Sebastian

Fly to

Heathrow

Route

Depart

Return

Price

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Mon 19/1

21:30-09:15

1 stop12h 45m

London Heathrow

Tue 20/1

11:25-20:50

1 stop8h 25m

£149

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Sat 13/12

14:05-20:05

1 stop7h 00m

London Heathrow

Mon 15/12

13:25-20:50

1 stop6h 25m

£180

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Wed 29/10

21:30-09:15

1 stop12h 45m

London Heathrow

Wed 5/11

19:40-08:40

1 stop12h 00m

£184

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Fri 12/12

21:30-08:25

1 stop11h 55m

London Heathrow

Mon 15/12

06:15-13:00

1 stop5h 45m

£184

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Thu 30/10

21:30-09:15

1 stop12h 45m

London Heathrow

Thu 6/11

09:15-08:40

1 stop22h 25m

£198

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Thu 16/10

09:00-20:05

1 stop12h 05m

London Heathrow

Sun 19/10

18:45-08:40

1 stop12h 55m

£211

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Thu 30/10

21:30-09:15

1 stop12h 45m

London Heathrow

Thu 6/11

19:05-08:40

1 stop12h 35m

£213

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Thu 4/12

09:20-17:30

2 stops9h 10m

London Heathrow

Sun 7/12

11:25-08:40

1 stop20h 15m

£215

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Sat 4/10

09:00-20:05

1 stop12h 05m

London Heathrow

Sat 11/10

20:50-08:50

1 stop11h 00m

£223

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Sat 29/11

14:05-20:05

1 stop7h 00m

£49

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 20 results
1
2

Best time to book a flight from San Sebastian to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Sebastian 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 San Sebastian to London Heathrow Airport

What is the cheapest month to book a flight from San Sebastian to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from San Sebastian to London Heathrow Airport (average of £112). Flying from San Sebastian to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

Related info for your journey

Find useful and relevant information for your journey from San Sebastian to Heathrow. 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 from for flights from San Sebastian to London Heathrow?

    If you book a flight to London Heathrow from San Sebastian, you will be flying from San Sebastián, which is the city’s only airport. San Sebastián (EAS) is located 9.7 mi from the center of San Sebastian. There are 0 flights from San Sebastián to London Heathrow per day from 0 different airlines.

  • How long is the flight from San Sebastian to London Heathrow Airport?

    Departing from San Sebastian to London Heathrow Airport will take you 12h 45m. Airlines will cover a distance of 564 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Sebastian to Heathrow 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 San Sebastian to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from San Sebastian to London Heathrow Airport (average of £112). Flying from San Sebastian to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Slough
Gatwick
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Winchester
Chichester
Ipswich
Swindon
Dartford
Guildford
Brentford

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Deals for San Sebastian to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from San Sebastian.

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

Need flexible booking options for your flight to Heathrow from San Sebastian? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes! Start tracking prices for San Sebastian to Heathrow flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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