Cheapest return flights from London to Helsinki in December from 171€

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 - 10 Dec Scandinavian Airlines
01 Dec - 03 Dec Scandinavian Airlines
29 Dec - 07 Jan Lufthansa
06 Dec - 08 Dec Finnair direct
05 Dec - 10 Dec Finnair direct
29 Dec - 07 Jan Finnair direct
24 Dec - 27 Dec Lufthansa
20 Dec - 27 Dec Lufthansa
19 Dec - 22 Dec Lufthansa
19 Dec - 26 Dec Lufthansa
19 Dec - 02 Jan Lufthansa
19 Dec - 21 Dec Lufthansa
20 Dec - 27 Dec Finnair direct
19 Dec - 02 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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