It is 1,772 miles according to Google Maps.
Guess it would depend on where in Ontario you were planning on flying to, given the fact that Toronto is in Ontario?
The drive from Hamilton Ontario to Toronto Ontario is 45 min. to an hour. Actual distance: 65.7 km or 40.8 mi
just over an hour
about 19 hours
About 6 hours from Illinois to Ontario.
1 hrs
Six
3 hours 48 min with speed limits
it is about 3 and a half hours
15-20 mins
Like 6 hours depending on traffic in Toronto