To save up to 36% on this flight, we recommend booking at least 61 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Key West to Toronto from $306 1-2 weeks out and tickets from $373 for flights departing within the next 72 hours.
Flights from Key West to Toronto lean towards being more expensive in November. Prices are generally better when you fly from Key West to Toronto in September, with the cheapest ticket starting at $137.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key West to Toronto as you normally would.