Biggs represented the United States internationally, playing for Team USA in the 2010 World U-17 Hockey Challenge, scoring five goals and adding an assist in six games, helping the U.S. to a gold medal finish. That same season, he competed for Team USA in the 2010 IIHF World U18 Championships, finishing the tournament with no points in seven games. A year later, he played in the 2011 IIHF World U18 Championships and scored two goals and one assist in six games during the tournament, including the overtime goal in the semifinal round against Canada.