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

Return flights

09 Jul - 13 Jul	Finnair
02 Jul - 08 Jul	Finnair	direct
09 Jul - 12 Jul	Finnair	direct
31 Jul - 04 Aug	Finnair
16 Jul - 23 Jul	Lufthansa
24 Jul - 27 Jul	Lufthansa
23 Jul - 21 Aug	Eurowings
09 Jul - 13 Jul	Finnair	direct
23 Jul - 26 Jul	Finnair	direct
31 Jul - 04 Aug	Finnair	direct
23 Jul - 21 Aug	Finnair	direct
16 Jul - 23 Jul	Finnair	direct
24 Jul - 27 Jul	Finnair	direct
05 Jul - 12 Jul	Finnair	direct
27 Jul - 02 Aug	KLM
27 Jul - 02 Aug	Finnair	direct

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 207€

Return flights