AirHint found the following cheapest return flights from Colombo (CMB) to Istanbul (SAW) in September 2025 (see full year).

Return flights

19 Sep - 27 Sep	SalamAir
08 Sep - 15 Sep	Air Arabia Abu Dhabi
20 Sep - 28 Sep	Air India
28 Sep - 05 Oct	Air India
09 Sep - 26 Sep	Air Arabia
16 Sep - 19 Sep	Air Arabia
12 Sep - 24 Sep	Air Arabia
22 Sep - 08 Oct	Air India
01 Sep - 29 Sep	Air Arabia
23 Sep - 26 Sep	Air Arabia Abu Dhabi
13 Sep - 17 Sep	flydubai
13 Sep - 28 Sep	Qatar Airways

Also check the deals for one-way flights from Colombo 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 return flights from Colombo to Istanbul in September from 348€

Return flights