Are there nonstop flights from Kolkata (CCU) to Toronto (YYZ)?

No. The fastest connection is via Dhaka, about 15h 55m of total flying time.

What is the fastest connection from Kolkata (CCU) to Toronto (YYZ)?

via Dhaka ≈ 15h 55m, via New Delhi ≈ 16h 15m, via Mumbai ≈ 17h 40m (estimated flying time, excluding layovers).

from 40,000 ANA miles, from 47,000 JAL miles (economy, one way, based on the published award charts).

Netaji Subhash Chandra Bose International Airport (CCU) to Toronto Pearson International Airport (YYZ)・12,540 km

No nonstop flights. The fastest connection is via Dhaka (DAC), about 15h 55m of flying time (layover not included).

With milesANA 40,000 miles+ (via DEL)JAL 47,000 miles+ (via DXB)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.