Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow to Windsor, Ontario as you normally would.
Windsor (YQG) is the airport you will fly into if you book a flight from Glasgow to Windsor. You should not have trouble finding flights to Windsor from Glasgow; the airport handles an average of 0 inbound flights from Glasgow per day. You should also have plenty of airline options to choose from since 2 airlines have flights to the Windsor airport from Glasgow. It is only a 5.0 mi journey from Windsor (YQG) to Windsor’s city centre.