Cheapest return flights from London to Helsinki in December from 149€

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

01 Dec - 07 Dec Scandinavian Airlines
10 Dec - 14 Dec Scandinavian Airlines
04 Dec - 08 Dec Scandinavian Airlines
11 Dec - 15 Dec Scandinavian Airlines
01 Dec - 04 Dec Scandinavian Airlines
04 Dec - 07 Dec Scandinavian Airlines
09 Dec - 13 Dec Scandinavian Airlines
07 Dec - 12 Dec Scandinavian Airlines
10 Dec - 13 Dec Scandinavian Airlines
11 Dec - 13 Dec Scandinavian Airlines
27 Dec - 03 Jan Lufthansa
29 Dec - 05 Jan Lufthansa
27 Dec - 03 Jan Finnair direct
29 Dec - 05 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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