AirHint found the following cheapest one-way flights from Tbilisi (TBS) to Istanbul (SAW) in September 2025 (see full year).

One-Way flights

23 Sep	AJet	direct
15 Sep	Pegasus Airlines	direct
26 Sep	AJet	direct
16 Sep	Pegasus Airlines	direct
30 Sep	Pegasus Airlines	direct
29 Sep	AJet	direct
24 Sep	Pegasus Airlines	direct
09 Sep	Pegasus Airlines	direct
11 Sep	Pegasus Airlines	direct
12 Sep	Pegasus Airlines	direct

Also check the deals for return flights from Tbilisi to Istanbul 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 one-way flights from Tbilisi to Istanbul in September from 48€

One-Way flights