Costa represented Portugal at several levels, starting on 15 March 2012 in a 2-1 defeat against Wales U19 team.[6] She also played for the Portuguese women's beach soccer team. On 19 January 2017 Costa debuted for the Portugal senior team in a 1-0 defeat against Northern Ireland.[7] On 6 July 2017 she was called by coach Francisco Neto to represent Portugal at the UEFA Women's Euro 2017, the first time the Portugal national team qualified for a women's football major tournament.[8]