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

Return flights

15 Dec - 22 Dec	Etihad Airways
06 Dec - 13 Dec	Etihad Airways
22 Dec - 30 Dec	Etihad Airways
16 Dec - 30 Dec	Etihad Airways
09 Dec - 15 Dec	Etihad Airways
15 Dec - 31 Dec	Etihad Airways
16 Dec - 01 Jan	Etihad Airways
18 Dec - 22 Dec	Etihad Airways
19 Dec - 22 Dec	Etihad Airways
25 Dec - 02 Jan	Etihad Airways
07 Dec - 14 Dec	Etihad Airways
13 Dec - 15 Dec	Etihad Airways
31 Dec - 29 Jan	Etihad Airways
29 Dec - 27 Jan	Etihad Airways
30 Dec - 07 Jan	Air Arabia
23 Dec - 05 Jan	flydubai

Also check the deals for one-way flights from Karachi 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 Karachi to Colombo in December from $467

Return flights