Are there nonstop flights from Changzhou (CZX) to London (LHR)?

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

What is the fastest connection from Changzhou (CZX) to London (LHR)?

via Beijing ≈ 11h 42m, via Beijing ≈ 11h 43m, via Qingdao ≈ 11h 47m (estimated flying time, excluding layovers).

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

Changzhou Benniu International Airport (CZX) to London Heathrow Airport (LHR)・9,065 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 PEK)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

12 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.