AirHint found the following cheapest return flights from Montreal (YUL) to Singapore (SIN) in October 2025 (see full year).

Return flights

16 Oct - 23 Oct	Air Canada
28 Oct - 04 Nov	Air Canada
26 Oct - 02 Nov	Air Canada
30 Oct - 06 Nov	Air Canada
01 Oct - 08 Oct	United
05 Oct - 12 Oct	Air Canada
07 Oct - 14 Oct	United
13 Oct - 20 Oct	United
15 Oct - 22 Oct	United
19 Oct - 26 Oct	Air Canada
21 Oct - 28 Oct	Air Canada
23 Oct - 30 Oct	Air Canada
02 Oct - 09 Oct	Air Canada
25 Oct - 01 Nov	Air Canada
27 Oct - 03 Nov	United
31 Oct - 07 Nov	Air Canada
29 Oct - 05 Nov	Air Canada

Also check the deals for one-way flights from Montreal to Singapore in October.

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 October from 729€

Return flights