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Cheap flights from San Sebastian to London Heathrow Airport from £52

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.
EAS — LHR
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Sebastian to Heathrow

Enter your travel dates to find the best prices.

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 5 December 2025.

Mon 8/1209:20EAS - LHR
1 stop8h 55mIberia
Sat 13/1218:45LHR - EAS
1 stop12h 55mIberia
Deal found 4/12£239
Wed 31/1221:30EAS - LHR
1 stop18h 25mIberia
Wed 7/119:40LHR - EAS
1 stop12h 00mIberia
Deal found 1/12£248
Sun 21/1214:05EAS - LHR
1 stop4h 55mMultiple Airlines
Sun 28/1210:00LHR - EAS
1 stop21h 40mMultiple Airlines
Deal found 3/12£259
Wed 31/1211:10EAS - LHR
2 stops8h 40mMultiple Airlines
Wed 7/111:25LHR - EAS
1 stop8h 25mMultiple Airlines
Deal found 1/12£275
Thu 18/1213:40EAS - LHR
1 stop4h 35mIberia
Sun 21/1216:15LHR - EAS
1 stop15h 25mIberia
Deal found 3/12£277
Sun 21/1213:40EAS - LHR
1 stop4h 35mIberia
Sat 3/119:05LHR - EAS
1 stop12h 35mIberia
Deal found 2/12£278
Fri 12/1214:05EAS - LHR
1 stop4h 55mMultiple Airlines
Sun 14/1216:30LHR - EAS
2 stops15h 10mMultiple Airlines
Deal found 2/12£371
Fri 5/1209:20EAS - LHR
1 stop5h 10mMultiple Airlines
Sun 7/1209:15LHR - EAS
1 stop10h 35mMultiple Airlines
Deal found 3/12£399
Sat 13/1221:30EAS - LHR
1 stop11h 55mMultiple Airlines
Mon 15/1214:55LHR - EAS
1 stop4h 55mMultiple Airlines
Deal found 4/12£405

Find 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 5 December 2025.

Round-trip from

£157

One-way from

£52

Popular in

June

Cheapest in

September

Average price

£161
Iberia
  • Iberia
  • 2/2-5/2
  • 2 total stops
  • 24h 30m total
  • San Sebastian to London
Search Deals
Iberia
  • Iberia
  • 13/12
  • 1 total stop
  • 11h 55m total
  • San Sebastian to London
Search Deals
Highest demand for flights based on searches. 37% potential increase in price (£118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 12% potential price decrease (£23 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 5 December 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 2/2

14:05-20:05

1 stop7h 00m

London Heathrow

Thu 5/2

15:30-08:40

2 stops16h 10m

£158

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Fri 23/1

21:30-09:15

1 stop12h 45m

London Heathrow

Mon 26/1

19:05-08:40

1 stop12h 35m

£184

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Fri 23/1

21:30-08:25

1 stop11h 55m

London Heathrow

Sun 25/1

06:15-13:00

1 stop5h 45m

£184

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Fri 16/1

21:30-09:15

1 stop12h 45m

London Heathrow

Sun 18/1

19:05-08:40

1 stop12h 35m

£184

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Sun 18/1

13:40-17:15

1 stop4h 35m

London Heathrow

Sun 25/1

06:15-13:00

1 stop5h 45m

£190

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Fri 17/4

21:30-16:20

1 stop19h 50m

London Heathrow

Sun 19/4

10:50-08:40

1 stop20h 50m

£195

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Thu 15/1

21:30-09:15

1 stop12h 45m

London Heathrow

Mon 19/1

19:05-08:40

1 stop12h 35m

£198

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Thu 5/2

13:40-17:15

1 stop4h 35m

London Heathrow

Sun 8/2

09:15-08:40

1 stop22h 25m

£201

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Sun 3/5

08:55-20:05

1 stop12h 10m

London Heathrow

Fri 8/5

20:50-08:20

1 stop10h 30m

£205

San SebastianLondon

EAS - LHR

EASLHR

San Sebastián

Sun 29/3

08:55-20:05

1 stop12h 10m

London Heathrow

Fri 3/4

19:10-08:40

1 stop12h 30m

£208

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 19 results
1
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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 £52). Flying from San Sebastian to London Heathrow Airport in August is currently the most expensive (average of £94). 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 £52). Flying from San Sebastian to London Heathrow Airport in August is currently the most expensive (average of £94). 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
Northampton
Hounslow
Slough
Gatwick
Luton
Ilford
Wembley
Colchester
Brentford
Watford
Hayes
Crawley
Deal
Winchester
Swindon
Romford
Bedford
Chichester

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

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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