AirHint found the following cheapest one-way flights from Miami (MIA) to Montreal (YUL) in August 2025 (see full year).

One-Way flights

01 Aug	Air Canada	direct
01 Aug	Spirit Airlines
13 Aug	Spirit Airlines
22 Aug	Frontier Airlines
19 Aug	United
12 Aug	Air Canada	direct
10 Aug	United
13 Aug	Air Canada	direct
19 Aug	Air Canada	direct
25 Aug	Frontier Airlines

Also check the deals for return flights from Miami to Montreal in August.

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 Miami to Montreal in August from $161

One-Way flights