Air Canada offers 1-way flights to select destinations in Canada from select cities in the U.S. for as low as $63.57, as seen on Travelzoo. That's the least expensive one-way flight we've ever seen from the US to Canada via Air Canada. (It's also the lowest base rate we could find for select flights by $73.) This price is valid on flights from New York, NY, (LGA) to Toronto, Canada, (YYZ) departing on April 24; prices vary depending on the travel cities and dates chosen. Destinations include Vancouver, Saint John, Calgary, Toronto, and more. A 7-day advance purchase is required. Book this travel deal by April 18 for travel April 23 through June 26. Blackout dates may apply.