Are there nonstop flights from Hanoi (HAN) to Bandar Seri Begawan (BWN)?

No. The fastest connection is via Ho Chi Minh City, about 3h 41m of total flying time.

What is the fastest connection from Hanoi (HAN) to Bandar Seri Begawan (BWN)?

via Ho Chi Minh City ≈ 3h 41m, via Nanning ≈ 3h 48m, via Hong Kong ≈ 4h 17m (estimated flying time, excluding layovers).

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

Noi Bai International Airport (HAN) to Brunei International Airport (BWN)・2,060 km

No nonstop flights. The fastest connection is via Ho Chi Minh City (SGN), about 3h 41m of flying time (layover not included).

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

None.

10 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.