Cheapest return flights from London to Oslo in September from $143

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

Return flights

27 Sep - 05 Oct British Airways direct
20 Sep - 23 Sep British Airways direct
24 Sep - 03 Oct British Airways direct
23 Sep - 03 Oct British Airways direct
22 Sep - 02 Oct British Airways direct
26 Sep - 10 Oct British Airways direct
30 Sep - 07 Oct KLM
20 Sep - 24 Sep British Airways direct
29 Sep - 03 Oct KLM
29 Sep - 02 Oct KLM
30 Sep - 03 Oct KLM
27 Sep - 30 Sep British Airways
29 Sep - 04 Oct SWISS
27 Sep - 29 Sep British Airways
25 Sep - 30 Sep KLM
24 Sep - 30 Sep KLM
26 Sep - 30 Sep Air France
23 Sep - 30 Sep KLM
25 Sep - 29 Sep Scandinavian Airlines
29 Sep - 30 Sep Finnair

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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