Detroit to TorontoAbout 390 km over the Ambassador Bridge and Highway 401 from I-75 or I-94. The shortest run listed here, so scheduling turns on the border window more than road time.
Flint to TorontoAbout 410 km on I-69 to Port Huron, across the Blue Water Bridge, then Highway 402 and 401 into Toronto. Flint loads can avoid the Detroit approach entirely.
Grand Rapids to TorontoAbout 590 km, east on I-96 to the Ambassador Bridge in Detroit, or on I-96 and I-69 to the Blue Water Bridge. The long Michigan leg makes pickup time decide the crossing.
Ann Arbor to MontrealAbout 970 km: I-94 to the Ambassador Bridge, Highway 401 across Ontario, then Autoroute 20 into Quebec. A long two-province run, so pickup and delivery dates are set together.
Kalamazoo to MontrealAbout 1,130 km, the longest run here: I-94 east to Detroit, the Ambassador Bridge, then Highway 401 and Autoroute 20. Quebec moves cluster near July 1, so book early for summer.