Are there nonstop flights from London (LHR) to Bangor (BGR)?

No. The fastest connection is via New York, about 8h 14m of total flying time.

What is the fastest connection from London (LHR) to Bangor (BGR)?

via New York ≈ 8h 14m, via Newark ≈ 8h 18m, via Philadelphia ≈ 8h 36m (estimated flying time, excluding layovers).

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

London Heathrow Airport (LHR) to Bangor International Airport (BGR)・4,939 km

No nonstop flights. The fastest connection is via New York (JFK), about 8h 14m of flying time (layover not included).

With milesJAL 37,000 miles+ (via PHL)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

10 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.