Thank you Raoul, that is a great idea. I never took a train during my visits in the U.S. or Canada before, but it sounds as it is a great alternative. Although i'm an experienced driver, i do not look forward to drive in Downtown New York City, i would cause a big traffic jam there
I've checked out CanJet, but it seems they only have one daily connection between Toronto and NY- La Guardia on Friday and Sunday.
Carla, thank you also. Maybe you can find another alternative for me. By the way: Are the incredibly high airfares a result of the merger between Air Canada and Canadian Airlines a couple of Years ago, as there is no more competition?