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

Return flights

29 Dec - 16 Jan	Pegasus Airlines
24 Dec - 31 Dec	Gulf Air
24 Dec - 01 Jan	AJet
25 Dec - 18 Jan	Flynas
26 Dec - 31 Dec	Air Arabia
25 Dec - 28 Dec	Pegasus Airlines
26 Dec - 01 Jan	Air Arabia
29 Dec - 10 Jan	flyadeal
23 Dec - 30 Dec	flyadeal
30 Dec - 08 Jan	Pegasus Airlines
23 Dec - 31 Dec	Turkish Airlines
26 Dec - 17 Jan	Air Arabia
28 Dec - 08 Jan	Pegasus Airlines
27 Dec - 29 Dec	Air Arabia
25 Dec - 01 Jan	Pegasus Airlines
29 Dec - 12 Jan	Flynas
23 Dec - 27 Dec	AJet
25 Dec - 28 Dec	Turkish Airlines	direct
23 Dec - 27 Dec	Turkish Airlines	direct
23 Dec - 29 Dec	Turkish Airlines	direct

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

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 December from $572

Return flights