Kalonas played in the youth teams of Dynamo Moscow, then moved to Rubin Kazan, before having a spell at Portuguese club S.C.
until the end of the season[3] and made his debut for the Gypsies in 3–0 win over Cobh Ramblers at Dalymount Park on 1 August.
He quickly became a fan favourite, netting the winner in a game against rivals Shamrock Rovers and the deciding penalty in a shoot-out to claim The Double in the FAI Cup Final against Derry City.
[7] After only six-months in Israel, Kalonas returned to Latvia, signing a one-year contract with Virslīga side Skonto FC.
[10] However, his contract was cancelled on 20 August 2015, only a few days after his arrival and without having played a match for the club, after manager Emin Quliyev was dissatisfied with his training.
[12] On 12 March 2016, he debuted for the club in a 0−2 defeat against FK Trakai, which also marked his first ever appearance in the highest league of his home country, the A Lyga.
[15] After two months at the club, his contract was terminated, with head coach Vadym Dobizha citing Kalonas' lacking fitness and discipline as the reasons for his departure.