AirHint found the following cheapest return flights from London (LCY) to Helsinki (HEL) in January 2026 (see full year).

Return flights

14 Jan - 21 Jan	Lufthansa
12 Jan - 19 Jan	Lufthansa
23 Jan - 26 Jan	Lufthansa
15 Jan - 21 Jan	Lufthansa
21 Jan - 27 Jan	Lufthansa
22 Jan - 27 Jan	Lufthansa
23 Jan - 27 Jan	Lufthansa
22 Jan - 26 Jan	Lufthansa
30 Jan - 02 Feb	Lufthansa
29 Jan - 02 Feb	Lufthansa
15 Jan - 20 Jan	Lufthansa
16 Jan - 19 Jan	Lufthansa
30 Jan - 01 Feb	KLM
31 Jan - 01 Feb	KLM
23 Jan - 01 Feb	KLM
29 Jan - 01 Feb	KLM
31 Jan - 06 Feb	KLM
25 Jan - 01 Feb	KLM
30 Jan - 06 Feb	KLM

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

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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Cheapest return flights from London to Helsinki in January from $235

Return flights