Cheapest one-way flights from Helsinki to London in September from 43€

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

23 Sep Ryanair direct
24 Sep Ryanair direct
13 Sep Ryanair direct
22 Sep Ryanair direct
28 Sep Ryanair direct
14 Sep Ryanair direct
10 Sep Ryanair direct
17 Sep Ryanair direct
16 Sep Ryanair direct
15 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.

Book a cheap hotel in London

Cheap car rent in London