Plankensteiner also won six medals at the FIL World Luge Championships with two golds (Men's doubles: 2009, Mixed team: 1989) and four bronzes (Men's doubles: 1996, Mixed team: 1991, 1996, 1997). At the FIL European Luge Championships, he won six medals with one silver (Men's doubles: 1996) and five bronzes (Men's doubles: 2002, 2008 (tied with Germany); Mixed team: 1996, 2000, 2008).