AirHint found the following cheapest return flights from Montreal (YUL) to Colombo (CMB) in May 2026 (see full year).

Return flights

07 May - 14 May	SWISS
14 May - 21 May	SWISS
06 May - 27 May	Air Canada
06 May - 13 May	Air Canada
04 May - 11 May	Air Canada
06 May - 25 May	Air Canada
11 May - 18 May	Air Canada
18 May - 25 May	Air Canada
13 May - 20 May	Air Canada
05 May - 26 May	Air Canada
26 May - 03 Jun	Air Canada
28 May - 04 Jun	Air Canada
26 May - 02 Jun	Air Canada
15 May - 01 Jun	Air Canada
25 May - 01 Jun	Emirates
26 May - 06 Jun	Air Canada
27 May - 03 Jun	Air Canada
01 May - 30 Jun	Air Canada
31 May - 07 Jun	Air Canada
30 May - 06 Jun	Air Canada

Also check the deals for one-way flights from Montreal to Colombo in May.

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 May from 982€

Return flights