Cheapest return flights from London to Helsinki in August from $173

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

Return flights

28 Aug - 03 Sep Scandinavian Airlines
17 Aug - 03 Sep Scandinavian Airlines
12 Aug - 09 Sep Scandinavian Airlines
25 Aug - 02 Sep Scandinavian Airlines
28 Aug - 04 Sep Scandinavian Airlines
12 Aug - 13 Aug Scandinavian Airlines
17 Aug - 21 Aug Scandinavian Airlines
17 Aug - 20 Aug Scandinavian Airlines
25 Aug - 10 Sep Scandinavian Airlines
31 Aug - 06 Sep Scandinavian Airlines
26 Aug - 02 Sep Scandinavian Airlines
27 Aug - 03 Sep Scandinavian Airlines
25 Aug - 03 Sep Scandinavian Airlines
12 Aug - 21 Aug Scandinavian Airlines
11 Aug - 21 Aug Scandinavian Airlines
14 Aug - 21 Aug Scandinavian Airlines
13 Aug - 21 Aug Scandinavian Airlines
13 Aug - 19 Aug Scandinavian Airlines
13 Aug - 20 Aug Scandinavian Airlines
12 Aug - 19 Aug Scandinavian Airlines

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

Skyscanner

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.

Book a cheap hotel in Helsinki

Cheap car rent in Helsinki

Feel free to contact us with any feedback or request another flight research.