Cheapest one-way flights from Helsinki to London in September from $45

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

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

One-Way flights

24 Sep Ryanair direct
14 Sep Ryanair direct
06 Sep Ryanair direct
10 Sep Ryanair direct
15 Sep Ryanair direct
29 Sep Ryanair direct
18 Sep Ryanair direct
19 Sep Ryanair direct
09 Sep Ryanair direct
02 Sep Ryanair direct

Also check the deals for return flights from Helsinki to London 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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