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

Return flights

30 Aug - 06 Sep	flyadeal
25 Aug - 07 Sep	Pegasus Airlines
31 Aug - 14 Sep	AJet
24 Aug - 07 Sep	Pegasus Airlines
30 Aug - 12 Sep	flyadeal
30 Aug - 01 Sep	Pegasus Airlines
28 Aug - 08 Sep	Air Arabia
30 Aug - 09 Sep	Air Arabia
27 Aug - 07 Sep	Air Arabia
31 Aug - 06 Sep	Air Arabia Abu Dhabi
26 Aug - 31 Aug	Pegasus Airlines
20 Aug - 29 Aug	Air Arabia
22 Aug - 29 Aug	Air Arabia
17 Aug - 31 Aug	IndiGo
18 Aug - 29 Aug	Pegasus Airlines
22 Aug - 30 Aug	AZAL
20 Aug - 26 Aug	AZAL
17 Aug - 29 Aug	Pegasus Airlines
24 Aug - 29 Aug	Pegasus Airlines
19 Aug - 26 Aug	IndiGo

Also check the deals for one-way flights from Istanbul to Colombo in August.

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 Colombo in August from 359€

Return flights