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

Return flights

25 Sep - 23 Oct	Tunisair
19 Sep - 24 Sep	Tunisair
28 Sep - 05 Oct	Lufthansa
24 Sep - 01 Oct	Transavia France
25 Sep - 05 Oct	Lufthansa
24 Sep - 10 Oct	Transavia France
27 Sep - 07 Oct	Lufthansa
23 Sep - 30 Sep	Royal Jordanian
20 Sep - 24 Sep	Tunisair
26 Sep - 10 Oct	Royal Jordanian
20 Sep - 31 Oct	Tunisair
27 Sep - 04 Oct	Lufthansa
21 Sep - 28 Sep	Lufthansa
19 Sep - 28 Sep	Tunisair
22 Sep - 28 Sep	Royal Jordanian
20 Sep - 25 Sep	Tunisair
19 Sep - 26 Sep	Tunisair
22 Sep - 26 Sep	Royal Jordanian
22 Sep - 27 Sep	Royal Jordanian
29 Sep - 06 Oct	Turkish Airlines

Also check the deals for one-way flights from Tunis 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 Tunis to Beirut in September from 343€

Return flights