In the following years, he would play for AZS Koszalin, Rosa Radom and Kutno.

On 4 June 2018, Łączyński won his first PLK title with Włocławek, after defeating Stal Ostrów Wielkopolski 65–73 in Game 6 of the finals.

[1] He was named the PLK Finals MVP after averaging 10.8 points and 4.8 assists over the six games in the series.

[2] On August 22, 2019, he signed with Śląsk Wrocław of the Polish Basketball League.

[4] On June 10, 2021, he has signed a 2-year contract with Anwil Włocławek for his return to club after 2 years.