Are there nonstop flights from Colombo (CMB) to Hanoi (HAN)?

No. The fastest connection is via Bangkok, about 4h 57m of total flying time.

What is the fastest connection from Colombo (CMB) to Hanoi (HAN)?

via Bangkok ≈ 4h 57m, via Bangkok ≈ 4h 59m, via Kunming ≈ 5h 20m (estimated flying time, excluding layovers).

from 15,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

Bandaranaike International Colombo Airport (CMB) to Noi Bai International Airport (HAN)・3,192 km

No nonstop flights. The fastest connection is via Bangkok (DMK), about 4h 57m of flying time (layover not included).

With milesANA 15,000 miles+ (via BKK)JAL 23,000 miles+ (via KMG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

16 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.