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

Return flights

03 Jul - 05 Jul	KLM
31 Jul - 02 Aug	KLM
01 Jul - 08 Jul	Lufthansa
12 Jul - 19 Jul	KLM
01 Jul - 05 Jul	KLM
16 Jul - 19 Jul	KLM
01 Jul - 15 Jul	Lufthansa
01 Jul - 06 Jul	Lufthansa
13 Jul - 19 Jul	KLM
17 Jul - 19 Jul	KLM
29 Jul - 03 Aug	Lufthansa
31 Jul - 03 Aug	KLM
10 Jul - 19 Jul	Lufthansa

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 $362

Return flights