 Sønstevold akapfuura nemamwe makirabhu evechidiki eNorway uye akatora chikamu nechikwata cheU-17 mumakwikwi uye magumo e2009 UEFA Womens Under-17 Championship muNyon, uko Norway yakapedza iri pachinzvimbo chechina. Gore rakatevera akanga ari chikamu chechikwata chakatamba pa2010 UEFA Womens Under-17 Championship, asi vakakundikana kusvika kumagumo. Muna 2011, aive muchikwata chakakodzera uye akasvika kumagumo e2011 UEFA Womens Under-19 Championship, apo timu yakapedza yechipiri mushure mekurasikirwa kukuru kweGerman, 8: 1. Nokuda kwekusvika kumasemi-fainari, vaNorway vakanga vatove vakakodzera 2012 FIFA U-20 Womens World Cup muJapan. Sønstevold akanga ari chikamu chechikwata chakatamba mutambo wacho. Norway yakasvika kumakota-fainari, asi zvakare yakakurirwa neGermany, 4:0. Musi wa14 Ndira 2014, akawana kapu yake yekutanga yepasi rose kurwisa Spain muLa Manga, Spain. Gore rimwe gare gare, akashevedzwa kuAlgarve Cup ya2015. Musi wa 23 Kubvumbi 2015 akagadzwa pachikwata chevashandi ve35 veFIFA Womens World Cup 2015. Iye pakutanga akadonhedzwa kubva kuchikwata chekupedzisira musi wa14 Chivabvu, asi akazodaidzwa muchikwata chevatambi makumi maviri nevatatu kuti atsive Caroline Graham Hansen, uyo aifanira kubvisa kukuvara. 