IATA Code: LT ICAO Code: LTU Known As: LTU International Airways Full Name: LTU International Airways Country: Germany Hubs: Düsseldorf Callsign: LTU Web Site: www.ltu.de History: LTU International Airways was founded on October 20, 1955, in Frankfurt and has been based in Dusseldorf since 1961. The airline operates international charters.