For fall travel, fly nonstop from Washington DC to Toronto for $184 roundtrip on Porter Airlines.
Searching Porter, we found seats departing Dulles on October 18, returning from YTZ on October 22.
Other dates are also available for travel from October through December.
See our Washington IAD fare listings for a complete look at current finds.
Need a room in Toronto? Here's what's available for the above dates on Hotelwatchdog.
Above image by Maurizio De Mattei via Shutterstock