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

Return flights

08 Sep - 30 Sep	Air France
15 Sep - 22 Sep	Air France
25 Sep - 06 Oct	Air France
15 Sep - 01 Oct	Air France
23 Sep - 21 Oct	Air France
15 Sep - 15 Oct	Air France
16 Sep - 24 Sep	KLM
10 Sep - 30 Sep	KLM
16 Sep - 09 Oct	KLM
06 Sep - 07 Oct	Air France
06 Sep - 28 Sep	Lufthansa
03 Sep - 17 Sep	KLM
16 Sep - 16 Oct	KLM
01 Sep - 06 Sep	Lufthansa
17 Sep - 30 Sep	Turkish Airlines
17 Sep - 23 Sep	Lufthansa

Also check the deals for one-way flights from Detroit 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 Detroit to Beirut in September from 658€

Return flights