Cheapest return flights from Detroit to Toronto in September from $281

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

Return flights

26 Sep - 30 Sep Spirit Airlines
30 Sep - 02 Oct Spirit Airlines
26 Sep - 28 Sep Frontier Airlines
21 Sep - 23 Sep Avelo Airlines
23 Sep - 25 Sep WestJet
19 Sep - 23 Sep Spirit Airlines
18 Sep - 22 Sep Spirit Airlines
22 Sep - 29 Sep Spirit Airlines
30 Sep - 02 Oct WestJet direct
18 Sep - 19 Sep Sun Country Airlines
26 Sep - 30 Sep WestJet direct
21 Sep - 23 Sep WestJet direct

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

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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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