AirHint found the following cheapest return flights from Istanbul (IST) to Beirut (BEY) in October 2025 (see full year).

Return flights

17 Oct - 21 Oct	AJet
04 Oct - 11 Oct	AJet
08 Oct - 11 Oct	AJet
14 Oct - 21 Oct	AJet
03 Oct - 06 Oct	AJet
07 Oct - 10 Oct	AJet
18 Oct - 19 Oct	AJet
24 Oct - 27 Oct	AJet
16 Oct - 19 Oct	AJet
20 Oct - 26 Oct	AJet
26 Oct - 04 Nov	Pegasus Airlines
31 Oct - 04 Nov	AJet
27 Oct - 03 Nov	Aegean Airlines
27 Oct - 03 Nov	Turkish Airlines	direct
28 Oct - 04 Nov	Turkish Airlines	direct
26 Oct - 04 Nov	Turkish Airlines	direct
31 Oct - 04 Nov	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul to Beirut in October.

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 Istanbul to Beirut in October from $142

Return flights