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

Return flights

12 May - 26 May	Air Canada
12 May - 03 Jun	Air Canada
11 May - 03 Jun	Air Canada
05 May - 14 May	Air Canada
06 May - 13 May	United
14 May - 30 May	Air Canada
20 May - 27 May	Air France
13 May - 25 May	Air France
13 May - 20 May	Air France
27 May - 10 Jun	Air France
27 May - 02 Jun	Air France
27 May - 03 Jun	Air France
31 May - 07 Jun	Air France
18 May - 25 May	KLM
19 May - 26 May	KLM
19 May - 25 May	KLM
26 May - 09 Jun	KLM
26 May - 03 Jun	KLM
25 May - 01 Jun	KLM
26 May - 02 Jun	KLM

Also check the deals for one-way flights from Montreal to Singapore 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 Singapore in May from 734€

Return flights