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

Return flights

24 Sep - 05 Oct	Lufthansa
10 Sep - 23 Sep	Lufthansa
10 Sep - 25 Sep	Lufthansa
01 Sep - 30 Sep	Lufthansa
01 Sep - 28 Sep	Lufthansa
01 Sep - 26 Sep	Lufthansa
01 Sep - 27 Sep	Lufthansa
03 Sep - 12 Sep	Scandinavian Airlines
04 Sep - 12 Sep	Scandinavian Airlines
12 Sep - 04 Oct	Lufthansa
26 Sep - 06 Oct	Lufthansa
19 Sep - 26 Sep	Pegasus Airlines

Also check the deals for one-way flights from Oslo to Beirut 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 Oslo to Beirut in September from $279

Return flights