Cheapest return flights from London to Helsinki in September from 223€

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

AirHint found the following cheapest return flights from London (LCY) to Helsinki (HEL) in September 2025 (see full year).

Return flights

26 Sep - 30 Sep KLM
02 Sep - 05 Sep KLM
12 Sep - 15 Sep KLM
07 Sep - 11 Sep KLM
11 Sep - 18 Sep Lufthansa
24 Sep - 28 Sep KLM
12 Sep - 14 Sep KLM
10 Sep - 14 Sep KLM
20 Sep - 27 Sep KLM
01 Sep - 08 Sep Lufthansa

Also check the deals for one-way 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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