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

Return flights

24 Sep - 08 Oct	Air France
22 Sep - 29 Sep	Brussels Airlines
28 Sep - 18 Oct	SWISS
22 Sep - 18 Oct	SWISS
26 Sep - 12 Oct	Norse Atlantic Airways (UK)
25 Sep - 12 Oct	Lufthansa
20 Sep - 11 Oct	Norse Atlantic Airways (UK)
19 Sep - 11 Oct	Norse Atlantic Airways (UK)

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Oslo in September from 468€

Return flights