AirHint found the following cheapest return flights from Helsinki (HEL) to London (STN) in July 2025 (see full year).

Return flights

30 Jul - 14 Aug	Ryanair	direct
30 Jul - 19 Aug	Ryanair	direct
31 Jul - 14 Aug	Ryanair	direct
30 Jul - 17 Aug	Ryanair	direct
30 Jul - 20 Aug	Ryanair	direct
30 Jul - 13 Aug	Ryanair
31 Jul - 19 Aug	Ryanair	direct
30 Jul - 13 Aug	Ryanair	direct
30 Jul - 16 Aug	Ryanair	direct
31 Jul - 17 Aug	Ryanair	direct
29 Jul - 31 Jul	Norwegian Air Sweden AOC
27 Jul - 29 Jul	Ryanair
27 Jul - 30 Jul	Finnair

Also check the deals for one-way flights from Helsinki to London 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 Helsinki to London in July from 156€

Return flights