Are there nonstop flights from Klagenfurt am Wörthersee (KLU) to London (LGW)?

No. The fastest connection is via Cologne, about 2h 26m of total flying time.

What is the fastest connection from Klagenfurt am Wörthersee (KLU) to London (LGW)?

via Cologne ≈ 2h 26m, via Vienna ≈ 2h 45m, via Hamburg ≈ 2h 51m (estimated flying time, excluding layovers).

Klagenfurt Airport (KLU) to London Gatwick Airport (LGW)・1,171 km

No nonstop flights. The fastest connection is via Cologne (CGN), about 2h 26m of flying time (layover not included).

None.

5 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.