He made his senior debut on February 6th, 2014 under coach Xavier Pascual Fuertes in a league match against BM Cangas.

[6] He has agreed to join German Bundesliga team Füchse Berlin from the beginning of the 2025-26 season, on a contract until 2028.

[7] Aitor Ariño made his debut for the Spanish national team on January 6th, 2013 against Brazil.

For the 2013 World Championship he was included in the Spanish team to replace the injured Cristian Ugalde.

[10] His father, Sergi Ariño, is also a handball player, who played for FC Barcelona between 1986 and 1988.