Cheapest return flights from London to Helsinki in December from $191

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

Return flights

04 Dec - 08 Dec Scandinavian Airlines
11 Dec - 15 Dec Scandinavian Airlines
05 Dec - 08 Dec Scandinavian Airlines
08 Dec - 14 Dec Scandinavian Airlines
08 Dec - 11 Dec Scandinavian Airlines
09 Dec - 12 Dec Scandinavian Airlines
12 Dec - 15 Dec Scandinavian Airlines
01 Dec - 07 Dec Scandinavian Airlines
02 Dec - 07 Dec Scandinavian Airlines
09 Dec - 11 Dec Scandinavian Airlines
30 Dec - 31 Jan KLM
25 Dec - 08 Jan Lufthansa
29 Dec - 13 Jan Lufthansa
18 Dec - 05 Jan Scandinavian Airlines
15 Dec - 03 Jan Scandinavian Airlines
30 Dec - 31 Jan Finnair direct
31 Dec - 04 Jan KLM
30 Dec - 04 Jan KLM
25 Dec - 08 Jan Finnair direct
29 Dec - 01 Jan KLM

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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