Are there nonstop flights from Phnom Penh (KTI) to London (LGW)?

No. The fastest connection is via Bangkok, about 12h 53m of total flying time.

What is the fastest connection from Phnom Penh (KTI) to London (LGW)?

via Bangkok ≈ 12h 53m, via Chengdu ≈ 13h 19m, via Istanbul ≈ 13h 21m (estimated flying time, excluding layovers).

from 29,500 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

Techo International Airport (KTI) to London Gatwick Airport (LGW)・10,051 km

No nonstop flights. The fastest connection is via Bangkok (BKK), about 12h 53m of flying time (layover not included).

With milesANA 29,500 miles+ (via IST)JAL 45,000 miles+ (via DXB)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

11 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.