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

Return flights

28 Dec - 13 Jan	Air Arabia
04 Dec - 11 Dec	Air Arabia
03 Dec - 10 Dec	Air Arabia
17 Dec - 01 Jan	Air Arabia
25 Dec - 01 Jan	Air Arabia
01 Dec - 07 Dec	Air Arabia
30 Dec - 12 Jan	Air Arabia
23 Dec - 31 Dec	Air Arabia
08 Dec - 15 Dec	flydubai
27 Dec - 31 Dec	Air Arabia
23 Dec - 29 Dec	IndiGo
22 Dec - 30 Dec	flydubai
28 Dec - 13 Jan	Turkish Airlines	direct
23 Dec - 31 Dec	Turkish Airlines	direct
17 Dec - 01 Jan	Turkish Airlines	direct
25 Dec - 01 Jan	Turkish Airlines	direct
01 Dec - 07 Dec	Turkish Airlines	direct
30 Dec - 12 Jan	Turkish Airlines	direct

Also check the deals for one-way flights from Colombo to Istanbul 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 Colombo to Istanbul in December from $451

Return flights