Are there nonstop flights from Shanghai (SHA) to Phnom Penh (KTI)?

No. The fastest connection is via Shenzhen, about 4h 16m of total flying time.

What is the fastest connection from Shanghai (SHA) to Phnom Penh (KTI)?

via Shenzhen ≈ 4h 16m, via Macau ≈ 4h 16m, via Sanya ≈ 4h 16m (estimated flying time, excluding layovers).

from 15,000 JAL miles, from 18,000 ANA miles (economy, one way, based on the published award charts).

Shanghai Hongqiao International Airport (SHA) to Techo International Airport (KTI)・2,777 km

No nonstop flights. The fastest connection is via Shenzhen (SZX), about 4h 16m of flying time (layover not included).

With milesJAL 15,000 miles+ (via HKG)ANA 18,000 miles+ (via SZX)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

19 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.