AirHint found the following cheapest one-way flights from Montreal (YUL) to Toronto (YYZ) in May 2026 (see full year).

One-Way flights

26 May	Air Canada	direct
04 May	Air Canada	direct
17 May	Air Canada	direct
02 May	Porter Airlines (Canada) Ltd	direct
03 May	Porter Airlines (Canada) Ltd	direct
06 May	Porter Airlines (Canada) Ltd	direct
07 May	Porter Airlines (Canada) Ltd	direct
09 May	Porter Airlines (Canada) Ltd	direct
10 May	Porter Airlines (Canada) Ltd	direct
11 May	Porter Airlines (Canada) Ltd	direct

Also check the deals for return flights from Montreal to Toronto 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 one-way flights from Montreal to Toronto in May from $215

One-Way flights