Hölttä started to play football in youth teams of HauPa in Haukipudas.[1] He made his senior debut for the HauPa first team in 2016. He played in Kakkonen and Kolmonen with HauPa first team, and in Nelonen with HauPa II second team.[2] He moved to JS Hercules to play in Kakkonen for the 2019 season.
After Jippo were relegated, Hölttä signed with fellow Ykkönen club Mikkelin Palloilijat (MP) for the 2022 season. His contract with MP was extended for 2023 season,[5] and he was named the captain of his team.[6][7]
AC Oulu
On 21 November 2023, Hölttä returned to Oulu and signed a two-year deal with Veikkausliiga club AC Oulu.[8] Hölttä stated, that it feels good to return to Oulu after three years playing in the Eastern Finland.[9] He debuted with his new club on 27 January 2024, in a Finnish League Cup draw against FC Haka.[10] On 4 May 2024, Hölttä debuted in Veikkausliiga, in a 3–2 away loss against Ilves.[11]
Personal life
In July 2022, Hölttä was diagnosed with testicle cancer, which was found from the doping test results. He got his last treatment of cytostatic drugs in January 2023, and survived the cancer.[12][13][14]