Are there nonstop flights from Toronto (YYZ) to Havana (HAV)?

No. The fastest connection is via Tampa, about 3h 44m of total flying time.

What is the fastest connection from Toronto (YYZ) to Havana (HAV)?

via Tampa ≈ 3h 44m, via Miami ≈ 3h 47m, via Nassau ≈ 4h 6m (estimated flying time, excluding layovers).

from 15,000 JAL miles (economy, one way, based on the published award charts).

Toronto Pearson International Airport (YYZ) to José Martí International Airport (HAV)・2,314 km

No nonstop flights. The fastest connection is via Tampa (TPA), about 3h 44m of flying time (layover not included).

With milesJAL 15,000 miles+ (via MIA)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

8 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.