AirHint found the following cheapest return flights from London (LHR) to Helsinki (HEL)
in August 2025 (see full year ).
Return flights
19 Aug
- 26 Aug
Scandinavian Airlines
$ 190
19 Aug
- 19 Aug
Scandinavian Airlines
$ 191
24 Aug
- 26 Aug
Scandinavian Airlines
$ 204
20 Aug
- 23 Aug
Scandinavian Airlines
$ 205
26 Aug
- 03 Sep
Scandinavian Airlines
$ 205
29 Aug
- 01 Sep
Scandinavian Airlines
$ 205
20 Aug
- 26 Aug
Scandinavian Airlines
$ 211
12 Aug
- 19 Aug
Finnair
$ 218
direct
12 Aug
- 19 Aug
Finnair
$ 218
18 Aug
- 23 Aug
Scandinavian Airlines
$ 219
25 Aug
- 28 Aug
Scandinavian Airlines
$ 219
18 Aug
- 20 Aug
Scandinavian Airlines
$ 219
30 Aug
- 08 Sep
Scandinavian Airlines
$ 223
30 Aug
- 06 Sep
Scandinavian Airlines
$ 224
30 Aug
- 06 Sep
Finnair
$ 227
direct
23 Aug
- 03 Sep
Lufthansa
$ 228
23 Aug
- 03 Sep
Finnair
$ 242
direct
26 Aug
- 03 Sep
Finnair
$ 242
direct
30 Aug
- 08 Sep
Finnair
$ 245
direct
29 Aug
- 01 Sep
Finnair
$ 263
direct
Also check the deals for one-way flights from London to Helsinki in August .
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.