 After suffering a season-ending injury in 2016 he announced his retirement on 10 March 2017.After a string of impressive displays in the 2006 season, Ármann earned his first international cap for Iceland when he came on as a substitute against Spain in a friendly in Reykjavík on 15 August 2006.His second cap was also against Spain as a substitute, this time in the qualifying for the Euro 2008 on 8 September 2007.