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

Return flights

22 Jul - 30 Jul	KLM
22 Jul - 05 Aug	KLM
22 Jul - 29 Jul	KLM
04 Jul - 08 Jul	KLM
13 Jul - 20 Jul	KLM
31 Jul - 05 Aug	KLM
15 Jul - 12 Aug	KLM
04 Jul - 06 Jul	KLM
23 Jul - 30 Jul	KLM
23 Jul - 31 Jul	KLM
26 Jul - 30 Jul	KLM
26 Jul - 31 Jul	KLM
29 Jul - 04 Aug	KLM
28 Jul - 07 Aug	KLM
17 Jul - 25 Jul	KLM
26 Jul - 05 Aug	KLM
27 Jul - 06 Aug	KLM
30 Jul - 04 Aug	KLM
30 Jul - 02 Aug	KLM
31 Jul - 03 Aug	KLM

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

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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Cheapest return flights from London to Helsinki in July from $269

Return flights