Cheapest return flights from London to Helsinki in October from $321

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

Return flights

31 Oct - 05 Nov KLM
30 Oct - 06 Nov KLM
30 Oct - 07 Nov KLM
29 Oct - 05 Nov KLM
31 Oct - 06 Nov KLM
30 Oct - 04 Nov KLM
30 Oct - 03 Nov KLM
31 Oct - 03 Nov KLM
29 Oct - 03 Nov KLM
28 Oct - 04 Nov KLM
27 Oct - 29 Oct Lufthansa
28 Oct - 29 Oct Lufthansa
28 Oct - 31 Oct Lufthansa
29 Oct - 31 Oct Lufthansa
30 Oct - 31 Oct Lufthansa
27 Oct - 28 Oct Lufthansa
24 Oct - 28 Oct Lufthansa
24 Oct - 29 Oct Lufthansa
27 Oct - 30 Oct KLM
24 Oct - 31 Oct Lufthansa

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

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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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