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

Return flights

23 Sep - 25 Sep	SWISS
22 Sep - 24 Sep	SWISS
17 Sep - 25 Sep	SWISS
17 Sep - 24 Sep	SWISS
16 Sep - 07 Oct	SWISS
24 Sep - 01 Oct	SWISS
18 Sep - 25 Sep	SWISS
22 Sep - 22 Oct	SWISS
19 Sep - 29 Sep	Lufthansa
20 Sep - 25 Sep	SWISS
18 Sep - 21 Sep	SWISS
25 Sep - 30 Sep	SWISS
17 Sep - 22 Sep	Lufthansa
08 Sep - 08 Oct	Lufthansa
24 Sep - 07 Oct	KLM
23 Sep - 07 Oct	KLM
26 Sep - 07 Oct	KLM
19 Sep - 09 Oct	KLM
25 Sep - 20 Oct	Lufthansa
25 Sep - 13 Oct	Lufthansa

Also check the deals for one-way flights from London 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 London to Beirut in September from $608

Return flights