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

Return flights

29 Sep - 03 Oct	Lufthansa
29 Sep - 07 Oct	Lufthansa
14 Sep - 18 Sep	Pegasus Airlines
28 Sep - 03 Oct	Transavia France
28 Sep - 05 Oct	Lufthansa
02 Sep - 14 Sep	Pegasus Airlines
11 Sep - 16 Sep	SunExpress
05 Sep - 09 Sep	Pegasus Airlines
07 Sep - 10 Sep	Pegasus Airlines
05 Sep - 07 Sep	AJet
05 Sep - 06 Sep	Pegasus Airlines
13 Sep - 23 Sep	LOT
11 Sep - 20 Sep	Air France
13 Sep - 20 Sep	Air France

Also check the deals for one-way flights from Beirut to Lisbon 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 Beirut to Lisbon in September from 293€

Return flights