Cheapest return flights from London to Helsinki in September from 240€

AirHint found the following cheapest return flights from London (LCY) to Helsinki (HEL) in September 2026 (see full year).

Return flights

19 Sep - 23 Sep KLM
07 Sep - 10 Sep KLM
17 Sep - 22 Sep Lufthansa
11 Sep - 15 Sep Lufthansa
25 Sep - 09 Oct KLM
14 Sep - 20 Sep KLM
14 Sep - 19 Sep KLM
16 Sep - 20 Sep KLM
02 Sep - 12 Sep KLM
04 Sep - 09 Sep KLM
19 Sep - 05 Oct KLM
30 Sep - 04 Oct KLM
21 Sep - 26 Sep KLM

Also check the deals for one-way flights from London to Helsinki in September.

Powered by

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 Helsinki

Cheap car rent in Helsinki

Feel free to contact us with any feedback or request another flight research.