Cheapest return flights from London to Oslo in September from 221€

Best time to book flights for London (LCY) to Oslo (OSL) flights at AirHint

AirHint found the following cheapest return flights from London (LCY) to Oslo (OSL) in September 2025 (see full year).

Return flights

04 Sep - 10 Sep Lufthansa
02 Sep - 10 Sep Lufthansa
26 Sep - 01 Oct Lufthansa
17 Sep - 30 Sep SWISS
06 Sep - 20 Sep KLM
09 Sep - 08 Oct SWISS
19 Sep - 23 Sep Lufthansa
05 Sep - 07 Sep KLM
02 Sep - 08 Sep Lufthansa
18 Sep - 23 Sep Lufthansa
19 Sep - 22 Sep Lufthansa
04 Sep - 15 Sep KLM
28 Sep - 05 Oct KLM
30 Sep - 05 Oct KLM

Also check the deals for one-way flights from London to Oslo in September.

Skyscanner

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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