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

Return flights

05 Dec - 10 Dec	SriLankan Airlines	direct
13 Dec - 27 Dec	SriLankan Airlines	direct
10 Dec - 16 Dec	SriLankan Airlines	direct
11 Dec - 18 Dec	SriLankan Airlines	direct
18 Dec - 22 Dec	SriLankan Airlines	direct
24 Dec - 03 Jan	SriLankan Airlines	direct
23 Dec - 03 Jan	SriLankan Airlines	direct
12 Dec - 27 Dec	SriLankan Airlines	direct

Also check the deals for one-way flights from Kochi 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.

Book a cheap hotel in Colombo

Cheap car rent in Colombo

Cheapest return flights from Kochi to Colombo in December from $259

Return flights