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

Return flights

08 Dec - 15 Dec	IndiGo
07 Dec - 12 Dec	IndiGo
01 Dec - 06 Dec	IndiGo
03 Dec - 14 Dec	IndiGo
12 Dec - 20 Dec	IndiGo
14 Dec - 20 Dec	Air India
22 Dec - 30 Dec	Air India
19 Dec - 30 Dec	Air India
19 Dec - 31 Dec	Air India
21 Dec - 28 Dec	Air India
20 Dec - 01 Jan	Air India
10 Dec - 03 Jan	IndiGo
21 Dec - 01 Jan	Air India
30 Dec - 04 Jan	IndiGo
28 Dec - 03 Jan	IndiGo

Also check the deals for one-way flights from Kolkata 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 Kolkata to Colombo in December from $283

Return flights