AirHint found the following cheapest return flights from London (LCY) to Helsinki (HEL) in September 2026 (see full year).
Return flights
| 05 Sep - 08 Sep | KLM | ||
| 01 Sep - 14 Sep | KLM | ||
| 04 Sep - 08 Sep | KLM | ||
| 04 Sep - 07 Sep | KLM | ||
| 05 Sep - 07 Sep | KLM | ||
| 14 Sep - 20 Sep | KLM | ||
| 19 Sep - 26 Sep | KLM |
Also check the deals for one-way flights from London to Helsinki in September.
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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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