Are there nonstop flights from London (LHR) to Nha Trang (CXR)?

No. The fastest connection is via Almaty, about 13h 6m of total flying time.

What is the fastest connection from London (LHR) to Nha Trang (CXR)?

via Almaty ≈ 13h 6m, via Tashkent ≈ 13h 8m, via Hanoi ≈ 13h 9m (estimated flying time, excluding layovers).

from 29,500 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

London Heathrow Airport (LHR) to Cam Ranh International Airport / Cam Ranh Air Base (CXR)・10,279 km

No nonstop flights. The fastest connection is via Almaty (ALA), about 13h 6m of flying time (layover not included).

With milesANA 29,500 miles+ (via ICN)JAL 45,000 miles+ (via ICN)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

17 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.