Are there nonstop flights from São Paulo (GRU) to Hanoi (HAN)?

No. The fastest connection is via Addis Ababa, about 21h 14m of total flying time.

What is the fastest connection from São Paulo (GRU) to Hanoi (HAN)?

via Addis Ababa ≈ 21h 14m, via Dubai ≈ 21h 25m, via Doha ≈ 21h 27m (estimated flying time, excluding layovers).

from 50,000 JAL miles, from 67,500 ANA miles (economy, one way, based on the published award charts).

São Paulo/Guarulhos–Governor André Franco Montoro International Airport (GRU) to Noi Bai International Airport (HAN)・17,157 km

No nonstop flights. The fastest connection is via Addis Ababa (ADD), about 21h 14m of flying time (layover not included).

With milesJAL 50,000 miles+ (via DXB)ANA 67,500 miles+ (via ADD)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

11 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.