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

Return flights

30 Oct - 06 Nov	Spirit Airlines
18 Oct - 20 Oct	Spirit Airlines
18 Oct - 21 Oct	Spirit Airlines
17 Oct - 20 Oct	Spirit Airlines
17 Oct - 18 Oct	Spirit Airlines
17 Oct - 19 Oct	Spirit Airlines
29 Oct - 30 Oct	Spirit Airlines
28 Oct - 29 Oct	Spirit Airlines
29 Oct - 03 Nov	Spirit Airlines
09 Oct - 12 Oct	Spirit Airlines
03 Oct - 09 Oct	Frontier Airlines
10 Oct - 12 Oct	Spirit Airlines
29 Oct - 03 Nov	Air Canada	direct
31 Oct - 07 Nov	Air Canada	direct
30 Oct - 06 Nov	Air Canada	direct

Also check the deals for one-way flights from Detroit to Toronto 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 Detroit to Toronto in October from $254

Return flights