Are there nonstop flights from Monterrey (MTY) to London (LGW)?

No. The fastest connection is via Toronto, about 10h 57m of total flying time.

What is the fastest connection from Monterrey (MTY) to London (LGW)?

via Toronto ≈ 10h 57m, via New York ≈ 11h, via Orlando ≈ 11h 27m (estimated flying time, excluding layovers).

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

Monterrey International Airport (MTY) to London Gatwick Airport (LGW)・8,455 km

No nonstop flights. The fastest connection is via Toronto (YYZ), about 10h 57m of flying time (layover not included).

With milesJAL 45,000 miles+ (via MAD)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

6 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.