Are there nonstop flights from Phuket (HKT) to Ho Chi Minh City (SGN)?

Yes. VietJet Air, Vietnam Airlines fly this route. Flight time is about 1h 38m.

What is the fastest connection from Phuket (HKT) to Ho Chi Minh City (SGN)?

via Siem Reap ≈ 2h 28m, via Penang ≈ 2h 33m, via Bangkok ≈ 2h 39m (estimated flying time, excluding layovers).

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

Phuket International Airport (HKT) to Tan Son Nhat International Airport (SGN)・962 km

Nonstop flights available (2 airlines). Flight time about 1h 38m. Nonstop return flights also operate.

With milesANA 15,000 miles+ (via BKK)JAL 15,000 miles+ (via KUL)Economy, one way, estimate. Tap a connection for miles by cabin.

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.