Are there nonstop flights from San Juan (SJU) to Toronto (YTZ)?

No. The fastest connection is via Washington, about 4h 37m of total flying time.

What is the fastest connection from San Juan (SJU) to Toronto (YTZ)?

via Washington ≈ 4h 37m, via Newark ≈ 4h 41m, via New York ≈ 4h 42m (estimated flying time, excluding layovers).

Luis Munoz Marin International Airport (SJU) to Billy Bishop Toronto City Airport (YTZ)・3,069 km

No nonstop flights. The fastest connection is via Washington (IAD), about 4h 37m of flying time (layover not included).

None.

7 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.