Kammala jumla mai zuwa: Mignolet ya wakilci ƙungiyar 'yan wasan ƙasar Belgium a kowane matakin daga ƙasa da shekara 16 zuwa sama. Ya fara wasan sa na farko a shekarar 2011, tun daga wannan lokacin ya samu sama da wasanni 30. An kuma sanya shi cikin tawagar Belgium don gasar cin kofin duniya ta 2014 da 2018, da UEFA Euro 2016 da
Shekarar 2020.