Are there nonstop flights from London (LHR) to Da Nang (DAD)?

No. The fastest connection is via Almaty, about 12h 35m of total flying time.

What is the fastest connection from London (LHR) to Da Nang (DAD)?

via Almaty ≈ 12h 35m, via Hanoi ≈ 12h 36m, via Tashkent ≈ 12h 40m (estimated flying time, excluding layovers).

from 29,500 ANA miles, from 40,000 JAL miles (economy, one way, based on the published award charts).

London Heathrow Airport (LHR) to Da Nang International Airport (DAD)・9,850 km

No nonstop flights. The fastest connection is via Almaty (ALA), about 12h 35m of flying time (layover not included).

With milesANA 29,500 miles+ (via TPE)JAL 40,000 miles+ (via KUL)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

14 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.