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Klagenfurt Airport (KLU) currently has nonstop service to 4 destinations on 3 airlines in our latest departure data. The busiest route is to Vienna (VIE), and the largest operator here is Ryanair with nonstops to 2 destinations. 3 of its routes are international.
Route data as of September 4, 2026, based on a 7-day departures sample.
You can fly nonstop from KLU to 4 destinations, including 3 international routes. Current schedules show about 2.6 flights per day across those routes. The busiest options start with Cologne (CGN), Palma de Mallorca (PMI), London (STN).
3 international routes in this schedule set
Austria 1 · Germany 1 · Spain 1
1/day
Airbus A320 family · Boeing 737 · Embraer E-Jet
Ranked by destinations served, then daily frequency.
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
Klagenfurt Airport (KLU / LOWK) is located in Klagenfurt am Worthersee, Austria.
The IATA code is KLU. The ICAO code is LOWK.
The busiest scheduled route from KLU in our current departure data is KLU to VIE (Vienna), with 1/day.
Ryanair is the largest operator in our KLU schedule data, serving 2 destinations with 1-2/day.
KLU has 3 international routes and 1 domestic route in the current schedule set.
3 airlines operate at KLU. Top carriers include Ryanair, Austrian Airlines, Eurowings.
KLU has direct flights to 4 destinations including Vienna, Palma de Mallorca, Cologne, London.
View live arrivals and departures at KLU on FlightRadar24.
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