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

Return flights

17 Sep - 03 Oct	Pegasus Airlines
10 Sep - 10 Oct	Pegasus Airlines
20 Sep - 14 Oct	Pegasus Airlines
26 Sep - 29 Sep	Pegasus Airlines
30 Sep - 15 Oct	Pegasus Airlines
19 Sep - 27 Sep	Pegasus Airlines
15 Sep - 19 Sep	Pegasus Airlines
30 Sep - 21 Oct	Pegasus Airlines
05 Sep - 14 Sep	Pegasus Airlines
06 Sep - 14 Sep	Pegasus Airlines
03 Sep - 07 Sep	Pegasus Airlines
19 Sep - 22 Sep	Pegasus Airlines
05 Sep - 12 Sep	Pegasus Airlines
12 Sep - 15 Sep	Pegasus Airlines

Also check the deals for one-way flights from Rotterdam 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 Rotterdam to Beirut in September from $328

Return flights