Franko won her first cap for Canada in 2005, aged 29. She scored her first goal on her second cap, against Germany, in a 4–3 loss. At the 2007 Pan American Games, she helped the team achieve a bronze medal in the soccer competition; later that year, she played in her first major, FIFA affiliated tournament with the Canada team, the 2007 World Cup, where she played all three group stage matches, scoring one goal, before the team was knocked out. She also competed for the team at the 2008 Summer Olympics.