On 10 October 2012, Antoniades was called for the first time into the Cyprus national team for the 2014 FIFA World Cup qualification matches against Slovenia and Norway, but he remained on the bench in both matches. He made his debut for the national team on 14 November 2012, in a friendly match against Finland at GSP Stadium, coming on as an 87th-minute substitute in Cyprus' 0–3 defeat.
