AirHint found the following cheapest return flights from London (LHR) to Oslo (OSL)
in September 2025 (see full year ).
Return flights
03 Sep
- 24 Sep
British Airways
$ 112
direct
12 Sep
- 16 Sep
British Airways
$ 113
direct
24 Sep
- 30 Sep
British Airways
$ 114
direct
02 Sep
- 09 Sep
British Airways
$ 115
direct
19 Sep
- 23 Sep
British Airways
$ 118
direct
03 Sep
- 08 Sep
British Airways
$ 118
direct
02 Sep
- 16 Sep
British Airways
$ 120
direct
12 Sep
- 15 Sep
British Airways
$ 123
direct
05 Sep
- 09 Sep
British Airways
$ 126
direct
08 Sep
- 10 Sep
British Airways
$ 126
direct
25 Sep
- 09 Oct
British Airways
$ 147
direct
Also check the deals for one-way flights from London to Oslo 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.