Depends on where is Ontario your starting point is. Ontario is HUGE. The time to get from Niagara falls Ontario to Pittsburgh is about 8 hours driving the posted speed limit. From Toronto, it takes about 10 hours.
KeVin Toronto
4 hours
4 hours
4 hours
ANSWER: This will depends on part of Canada, but I can give you some idea how far it is. From Quebec Canada to Pennsylvania USA is 1205 miles. From Ontario Canada to Pennsylvania USA is 113 miles..Hope this help.
Around an hour and a half by car.
about 24 hours to go across ontario on the trans canada highway
Mapquest it.
About 7 hours.
It is a 2386.8 mi drive
Drive: about 2 hours
Four hours - 3 from Barrie. Ontario
26 hours