Cheapest one-way flights from London to Helsinki in September from $59

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

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

One-Way flights

12 Sep Norwegian Air Sweden AOC direct
11 Sep Norwegian Air Sweden AOC direct
25 Sep Norwegian Air Sweden AOC direct
24 Sep Norwegian Air Sweden AOC direct
17 Sep Norwegian Air Sweden AOC direct
10 Sep Norwegian Air Sweden AOC direct
29 Sep Norwegian Air Sweden AOC direct
01 Sep Norwegian Air Sweden AOC direct
08 Sep Norwegian Air Sweden AOC direct
22 Sep Norwegian Air Sweden AOC 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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