On July 17, 2016, Gkikas signed a two-year deal with the Greek club Promitheas Patras.

In 22 league games, he averaged 7.2 points, 2.5 rebounds, 5.9 assists and 1.7 steals, playing around 24 minutes per contest.

On June 21, 2022, playing against Larisa for the Greek Basket League playoffs, Gkikas achieved a career-high of 20 points and 13 assists.

In 25 domestic league matches, he averaged 4.8 points, 2.6 rebounds and 2.7 assists, playing around 19 minutes per contest.

On June 30, 2023, Gkikas signed with Panionios in order to lead the club in its return to the professional divisions.