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

Return flights

02 Dec - 09 Dec	British Airways
01 Dec - 08 Dec	British Airways
03 Dec - 10 Dec	Turkish Airlines
28 Dec - 24 Jan	SWISS
04 Dec - 11 Dec	Air Canada
30 Dec - 06 Jan	Air Canada
07 Dec - 14 Dec	Turkish Airlines
05 Dec - 12 Dec	Turkish Airlines
29 Dec - 05 Jan	Air Canada
09 Dec - 16 Dec	Air Canada
15 Dec - 22 Dec	Air Canada
12 Dec - 28 Dec	Air Canada
14 Dec - 21 Dec	Air Canada
14 Dec - 06 Jan	Air Canada
31 Dec - 07 Jan	Air Canada
27 Dec - 03 Jan	Air Canada
23 Dec - 14 Jan	Air Canada
28 Dec - 04 Jan	Air Canada
25 Dec - 01 Jan	Air Canada
26 Dec - 02 Jan	Air Canada

Also check the deals for one-way flights from Montreal 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 Montreal to Colombo in December from 1326€

Return flights