Cheapest one-way flights from London to Helsinki in October from $106

Best time to book flights for London (LHR) to Helsinki (HEL) flights at AirHint

AirHint found the following cheapest one-way flights from London (LHR) to Helsinki (HEL) in October 2025 (see full year).

One-Way flights

23 Oct Scandinavian Airlines
14 Oct Scandinavian Airlines
08 Oct Scandinavian Airlines
29 Oct Scandinavian Airlines
09 Oct Scandinavian Airlines
17 Oct Scandinavian Airlines
10 Oct Scandinavian Airlines
14 Oct Finnair direct
08 Oct Finnair direct
29 Oct Finnair direct

Also check the deals for return flights from London to Helsinki in October.

Skyscanner

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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