AirHint found the following cheapest return flights from Belgrade (BEG) to Istanbul (SAW) in October 2025 (see full year).

Return flights

08 Oct - 15 Oct	AJet	direct
03 Oct - 08 Oct	AJet	direct
01 Oct - 08 Oct	AJet	direct
03 Oct - 06 Oct	AJet	direct
03 Oct - 10 Oct	AJet
06 Oct - 12 Oct	AJet
02 Oct - 09 Oct	Pegasus Airlines
02 Oct - 09 Oct	Pegasus Airlines	direct
17 Oct - 20 Oct	AJet
17 Oct - 20 Oct	AJet	direct

Also check the deals for one-way flights from Belgrade to Istanbul 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 Belgrade to Istanbul in October from 182€

Return flights