Cheapest return flights from London to Helsinki in August from $133

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

Return flights

30 Aug - 15 Sep Ryanair direct
30 Aug - 17 Sep Ryanair direct
28 Aug - 15 Sep Ryanair direct
28 Aug - 17 Sep Ryanair direct
27 Aug - 15 Sep Ryanair direct
30 Aug - 13 Sep Ryanair direct
30 Aug - 10 Sep Ryanair direct
28 Aug - 13 Sep Ryanair direct
28 Aug - 14 Sep Ryanair direct
27 Aug - 13 Sep Ryanair direct
25 Aug - 31 Aug Ryanair
25 Aug - 26 Aug Ryanair direct
23 Aug - 26 Aug Ryanair direct
28 Aug - 29 Aug Ryanair direct
27 Aug - 29 Aug Ryanair direct
27 Aug - 30 Aug Ryanair direct
24 Aug - 31 Aug Ryanair
24 Aug - 26 Aug Ryanair direct
25 Aug - 27 Aug Ryanair direct
27 Aug - 31 Aug Ryanair direct

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

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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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