Are there nonstop flights from London (LHR) to Kalamata (KLX)?

No. The fastest connection is via Zurich, about 3h 49m of total flying time.

What is the fastest connection from London (LHR) to Kalamata (KLX)?

via Zurich ≈ 3h 49m, via Paris ≈ 3h 50m, via Stuttgart ≈ 3h 50m (estimated flying time, excluding layovers).

from 15,000 JAL miles, from 15,000 ANA miles (economy, one way, based on the published award charts).

London Heathrow Airport (LHR) to Kalamata Airport (KLX)・2,384 km

No nonstop flights. The fastest connection is via Zurich (ZRH), about 3h 49m of flying time (layover not included).

With milesJAL 15,000 miles+ (via CDG)ANA 15,000 miles+ (via GVA)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

20 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.