AirHint found the following cheapest return flights from London (LGW) to Helsinki (HEL)
in September 2025 (see full year ).
Return flights
24 Sep
- 29 Sep
Norwegian Air Sweden AOC
87 €
direct
18 Sep
- 06 Oct
Norwegian Air Sweden AOC
93 €
direct
17 Sep
- 06 Oct
Norwegian Air Sweden AOC
93 €
direct
24 Sep
- 06 Oct
Norwegian Air Sweden AOC
93 €
direct
18 Sep
- 29 Sep
Norwegian Air Sweden AOC
95 €
direct
17 Sep
- 29 Sep
Norwegian Air Sweden AOC
95 €
direct
11 Sep
- 29 Sep
Norwegian Air Sweden AOC
95 €
direct
12 Sep
- 29 Sep
Norwegian Air Sweden AOC
95 €
direct
25 Sep
- 06 Oct
Norwegian Air Sweden AOC
95 €
direct
25 Sep
- 29 Sep
Norwegian Air Sweden AOC
97 €
direct
11 Sep
- 17 Sep
Norwegian Air Sweden AOC
100 €
12 Sep
- 17 Sep
Norwegian Air Sweden AOC
102 €
direct
12 Sep
- 01 Oct
Norwegian Air Sweden AOC
102 €
direct
11 Sep
- 17 Sep
Norwegian Air Sweden AOC
103 €
direct
18 Sep
- 01 Oct
Norwegian Air Sweden AOC
103 €
direct
17 Sep
- 01 Oct
Norwegian Air Sweden AOC
103 €
direct
24 Sep
- 01 Oct
Norwegian Air Sweden AOC
103 €
direct
11 Sep
- 01 Oct
Norwegian Air Sweden AOC
103 €
direct
25 Sep
- 01 Oct
Norwegian Air Sweden AOC
105 €
direct
18 Sep
- 24 Sep
Norwegian Air Sweden AOC
106 €
direct
Also check the deals for one-way flights from London to Helsinki in September .
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.