Cheapest return flights from London to Helsinki in December from $172

Best time to book flights for London (LHR) to Helsinki (HEL) flights at AirHint

AirHint found the following cheapest return flights from London (LHR) to Helsinki (HEL) in December 2025 (see full year).

Return flights

05 Dec - 08 Dec Scandinavian Airlines
05 Dec - 07 Dec Scandinavian Airlines
10 Dec - 14 Dec Scandinavian Airlines
02 Dec - 06 Dec Scandinavian Airlines
03 Dec - 06 Dec Scandinavian Airlines
12 Dec - 17 Dec KLM
13 Dec - 16 Dec KLM
20 Dec - 10 Jan KLM
22 Dec - 16 Jan Lufthansa
10 Dec - 13 Dec Scandinavian Airlines
22 Dec - 28 Dec Lufthansa
13 Dec - 17 Dec KLM
20 Dec - 02 Jan KLM
26 Dec - 02 Jan Lufthansa
20 Dec - 10 Jan Finnair direct
27 Dec - 03 Jan Lufthansa
27 Dec - 03 Jan Finnair direct
26 Dec - 02 Jan Finnair direct
20 Dec - 02 Jan Finnair direct
22 Dec - 16 Jan Finnair direct

Also check the deals for one-way flights from London to Helsinki in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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