Cheapest return flights from London to Oslo in September from 216€

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

03 Sep - 17 Sep SWISS
04 Sep - 17 Sep SWISS
11 Sep - 16 Sep SWISS
10 Sep - 15 Sep KLM
12 Sep - 15 Sep KLM
03 Sep - 10 Sep SWISS
26 Sep - 29 Sep KLM
03 Sep - 06 Sep KLM
25 Sep - 28 Sep Luxair
18 Sep - 22 Sep 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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