Are there nonstop flights from Miami (MIA) to Shenzhen (SZX)?

No. The fastest connection is via Vancouver, about 18h 21m of total flying time.

What is the fastest connection from Miami (MIA) to Shenzhen (SZX)?

via Vancouver ≈ 18h 21m, via Los Angeles ≈ 19h 8m, via Mexico City ≈ 20h 2m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 50,000 JAL miles (economy, one way, based on the published award charts).

Miami International Airport (MIA) to Shenzhen Bao'an International Airport (SZX)・14,419 km

No nonstop flights. The fastest connection is via Vancouver (YVR), about 18h 21m of flying time (layover not included).

With milesANA 30,000 miles+ (via FRA)JAL 50,000 miles+ (via DXB)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

13 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.