Cheapest one-way flights from London to Helsinki in September from 88€

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 September 2025 (see full year).

One-Way flights

22 Sep Scandinavian Airlines
18 Sep Scandinavian Airlines
16 Sep Scandinavian Airlines
06 Sep British Airways
22 Sep Finnair direct
16 Sep Finnair direct
18 Sep Finnair direct
20 Sep Finnair direct
06 Sep Finnair direct

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

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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