Are there nonstop flights from London (LGW) to Melbourne (MEL)?

No. The fastest connection is via Bangkok, about 20h 53m of total flying time.

What is the fastest connection from London (LGW) to Melbourne (MEL)?

via Bangkok ≈ 20h 53m, via Phuket ≈ 20h 53m, via Singapore ≈ 20h 53m (estimated flying time, excluding layovers).

from 40,000 ANA miles, from 50,000 JAL miles (economy, one way, based on the published award charts).

London Gatwick Airport (LGW) to Melbourne Airport (MEL)・16,899 km

No nonstop flights. The fastest connection is via Bangkok (BKK), about 20h 53m of flying time (layover not included).

With milesANA 40,000 miles+ (via SIN)JAL 50,000 miles+ (via DXB)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

14 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.