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

Yes. WestJet, Air Canada Rouge fly this route. Flight time is about 4h 8m.

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

via Washington ≈ 4h 38m, via Washington ≈ 4h 38m, via Philadelphia ≈ 4h 39m (estimated flying time, excluding layovers).

from 23,000 JAL miles, from 30,000 ANA miles (economy, one way, based on the published award charts).

Toronto Pearson International Airport (YYZ) to Luis Munoz Marin International Airport (SJU)・3,082 km

Nonstop flights available (2 airlines). Flight time about 4h 8m. Nonstop return flights also operate.

With milesJAL 23,000 miles+ (via CLT)ANA 30,000 miles+ (via IAD)Economy, one way, estimate. Tap a connection for miles by cabin.

34 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.