Our cheapest offers for flights from London Heathrow to Helsinki

Here you can compare cheap flights from London Heathrow (LHR) to Helsinki (HEL) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Helsinki. Prices and availability may change at any time.

	Outbound	Return	Airlines	Baggage	Price
London Heathrow Helsinki	Outbound 31/03/26 1 Stopover (ARN) SK1530, SK0710 07h 05min	Return 21/04/26 1 Stopover (ARN) SK0709, SK0527 05h 35min	SAS Scandinavian Airlines	?	£156
Best option London Heathrow Helsinki	Outbound 25/05/26 direct AY1340 02h 45min	Return 07/06/26 direct AY1331 03h 10min	Finnair	?	£240
London Heathrow Helsinki	Outbound 31/03/26 1 Stopover (ARN) SK0534, SK0708 13h 50min	Return 21/04/26 1 Stopover (ARN) SK0709, SK0527 05h 35min	SAS Scandinavian Airlines		£192
London Heathrow Helsinki	Outbound 31/03/26 1 Stopover (ARN) SK1530, SK0710 07h 05min	Return 21/04/26 1 Stopover (ARN) SK0725, SK0527 21h 45min	SAS Scandinavian Airlines		£163
London Heathrow Helsinki	Outbound 08/08/26 1 Stopover (CPH) SK0504, SK1720 09h 10min	Return 31/08/26 1 Stopover (CPH) SK1713, SK0505 26h 00min	SAS Scandinavian Airlines		£193
London Heathrow Helsinki	Outbound 08/08/26 1 Stopover (CPH) SK0504, SK1720 09h 10min	Return 31/08/26 1 Stopover (CPH) SK1713, SK0505 26h 00min	SAS Scandinavian Airlines		£196
London Heathrow Helsinki	Outbound 01/04/26 1 Stopover (FRA) LH0901, LH0850 05h 30min	Return 21/04/26 1 Stopover (FRA) LH0853, LH4226 05h 35min	Lufthansa	?	£198
London Heathrow Helsinki	Outbound 08/08/26 1 Stopover (CPH) SK0504, SK1720 09h 10min	Return 31/08/26 1 Stopover (CPH) SK1713, SK0505 26h 00min	SAS Scandinavian Airlines		£198
London Heathrow Helsinki	Outbound 31/03/26 1 Stopover (ARN) SK1530, SK0710 07h 05min	Return 21/04/26 1 Stopover (ARN) SK0709, SK0527 05h 35min	SAS Scandinavian Airlines	?	£204
London Heathrow Helsinki	Outbound 25/05/26 1 Stopover (ARN) SK1530, SK0708 04h 15min	Return 07/06/26 direct AY1331 03h 10min	SAS Scandinavian Airlines		£216

Tips and tricks to help you find cheap flights from London Heathrow to Helsinki

Important flight information

Flight information: London Heathrow - Helsinki

Outbound and return from	£ 155,97
Flight duration	min. 02:50 / max. 03:05
Return flight duration	min. 03:10/ max. 03:25
Distance	1849 km
Flights per week	55
Departure airport	Airport London Heathrow (LHR)
Arrival airport	Airport Helsinki-Vantaa (HEL)
Destination country	Flights to Finland

Alternative flights to Helsinki

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Flight London - Helsinki from £ 148

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