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

Return flights

24 Sep - 30 Sep	Lufthansa
26 Sep - 06 Oct	Lufthansa
26 Sep - 30 Sep	Lufthansa
30 Sep - 14 Oct	Lufthansa
30 Sep - 21 Oct	Lufthansa
30 Sep - 07 Oct	Lufthansa
24 Sep - 22 Oct	Lufthansa
24 Sep - 01 Oct	SWISS
24 Sep - 28 Sep	SWISS
26 Sep - 13 Oct	Lufthansa
25 Sep - 27 Oct	Lufthansa
23 Sep - 15 Oct	Lufthansa
22 Sep - 15 Oct	Lufthansa
18 Sep - 25 Sep	Lufthansa
16 Sep - 30 Sep	Lufthansa
18 Sep - 23 Sep	Lufthansa
19 Sep - 23 Sep	Lufthansa
18 Sep - 22 Sep	Lufthansa
23 Sep - 30 Sep	KLM
19 Sep - 22 Sep	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 531€

Return flights