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
29 Aug
- 02 Sep
Scandinavian Airlines
$ 190
22 Aug
- 23 Aug
Scandinavian Airlines
$ 204
20 Aug
- 27 Aug
Scandinavian Airlines
$ 204
19 Aug
- 22 Aug
Scandinavian Airlines
$ 204
24 Aug
- 26 Aug
Scandinavian Airlines
$ 204
20 Aug
- 23 Aug
Scandinavian Airlines
$ 205
26 Aug
- 03 Sep
Scandinavian Airlines
$ 205
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
30 Aug
- 06 Sep
Scandinavian Airlines
$ 224
23 Aug
- 04 Sep
Finnair
$ 226
direct
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
29 Aug
- 02 Sep
Finnair
$ 259
direct
24 Aug
- 05 Sep
British Airways
$ 368
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.