Krilanovich represented Argentina at U15 and U17 level. He scored twice, versus Chile and invitees Czech Republic, as they won the 2017 South American U-15 Championship on home soil. Krilanovich later netted one goal, against Paraguay, in five appearances at the 2019 South American U-17 Championship in Peru, as they won the trophy and qualified for the FIFA U-17 World Cup in Brazil; where he scored, versus Cameroon, across two matches.