Cheapest return flights from Montreal to Toronto in September from $173

AirHint found the following cheapest return flights from Montreal (YUL) to Toronto (YYZ) in September 2025 (see full year).

Return flights

01 Sep - 08 Sep WestJet direct
02 Sep - 09 Sep WestJet direct
15 Sep - 18 Sep WestJet direct
09 Sep - 16 Sep WestJet direct
04 Sep - 05 Sep WestJet direct
12 Sep - 19 Sep WestJet direct
13 Sep - 20 Sep WestJet direct
13 Sep - 14 Sep WestJet direct
16 Sep - 20 Sep WestJet direct
03 Sep - 04 Sep WestJet direct
26 Sep - 03 Oct WestJet direct
25 Sep - 02 Oct WestJet direct
24 Sep - 01 Oct WestJet direct
29 Sep - 06 Oct WestJet direct
28 Sep - 05 Oct WestJet direct
27 Sep - 04 Oct WestJet direct
30 Sep - 07 Oct WestJet direct
30 Sep - 21 Oct Porter Airlines (Canada) Ltd direct
19 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
19 Sep - 02 Oct Porter Airlines (Canada) Ltd direct

Also check the deals for one-way flights from Montreal to Toronto in September.

Skyscanner

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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