Are there nonstop flights from London (LHR) to Tokyo (NRT)?

No. The fastest connection is via Helsinki, about 12h 23m of total flying time.

What is the fastest connection from London (LHR) to Tokyo (NRT)?

via Helsinki ≈ 12h 23m, via Amsterdam ≈ 12h 24m, via Brussels ≈ 12h 33m (estimated flying time, excluding layovers).

from 31,000 ANA miles, from 40,000 JAL miles (economy, one way, based on the published award charts).

London Heathrow Airport (LHR) to Narita International Airport (NRT)・9,591 km

No nonstop flights. The fastest connection is via Helsinki (HEL), about 12h 23m of flying time (layover not included).

With milesANA 31,000 miles+ (via BRU)JAL 40,000 miles+ (via FRA)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

56 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.