Are there nonstop flights from Key West (EYW) to Toronto (YTZ)?

No. The fastest connection is via Washington, about 3h 34m of total flying time.

What is the fastest connection from Key West (EYW) to Toronto (YTZ)?

via Washington ≈ 3h 34m, via Newark ≈ 3h 54m, via New York ≈ 3h 56m (estimated flying time, excluding layovers).

Key West International Airport (EYW) to Billy Bishop Toronto City Airport (YTZ)・2,132 km

No nonstop flights. The fastest connection is via Washington (IAD), about 3h 34m of flying time (layover not included).

None.

5 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.