Are there nonstop flights from Nanjing (NKG) to London (LHR)?

No. The fastest connection is via Beijing, about 11h 42m of total flying time.

What is the fastest connection from Nanjing (NKG) to London (LHR)?

via Beijing ≈ 11h 42m, via Xi'an ≈ 11h 52m, via Paris ≈ 12h 4m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Nanjing Lukou International Airport (NKG) to London Heathrow Airport (LHR)・9,035 km

No nonstop flights. The fastest connection is via Beijing (PKX), about 11h 42m of flying time (layover not included).

With milesANA 30,000 miles+ (via TFU)JAL 37,000 miles+ (via PVG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

18 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.