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

Return flights

25 Sep - 15 Oct	Norwegian
11 Sep - 02 Oct	Norwegian	direct
16 Sep - 23 Sep	easyJet
25 Sep - 11 Oct	Norwegian
25 Sep - 09 Oct	Norwegian	direct
25 Sep - 16 Oct	Norwegian	direct
24 Sep - 30 Sep	Wizz Air
25 Sep - 02 Oct	Norwegian	direct
28 Sep - 02 Oct	easyJet
10 Sep - 17 Sep	Wizz Air Malta
29 Sep - 02 Oct	easyJet
11 Sep - 18 Sep	Norwegian	direct
18 Sep - 09 Oct	Norwegian	direct
18 Sep - 02 Oct	Norwegian	direct
11 Sep - 14 Sep	Norwegian
20 Sep - 24 Sep	easyJet
14 Sep - 18 Sep	easyJet
25 Sep - 29 Sep	Norwegian
22 Sep - 30 Sep	Brussels Airlines
10 Sep - 20 Sep	easyJet

Also check the deals for one-way flights from Lyon 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.

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Cheapest return flights from Lyon to Oslo in September from $163

Return flights