Yes, I don't think there are many, if any, direct flights from Toronto to Buffalo. The couple who are shipping their motorhome couldn't get a direct flight so they are flying Toronto to a point in the eastern US (cant remember if it was New York City, Philadelphia, DC) then back to Buffalo which is going to take them most of the day. What a procedure! At least they should be able to drive home in the spring with no problems. I hope it works out for them and their winter stay is worth the hassle and cost.
We looked into flying to Florida but since we had 17 nights booked down there in 3 different cities/towns we would definitely need a rental car. When we added the cost of return flights from Toronto and Orlando and rental car for 18 days it was going to be at least 3X the cost that we spend in gas, food & lodging along the way to drive our car down, tour around and drive home again. Plus I wouldn't be able to bring all my "stuff" that I like to take for timeshare stays.
We wont even mention trying to get one of our kids to get out of bed in the middle of the night to make the 90 min drive to the Toronto airport for 4am or long term parking near the airport for our car. Geesh!
~Diane