The PKP connection between Łowicz Główny and Sokółka is operated by IC Intercity. The first direct train departs at 15:32 from Łowicz Główny station. The last train to Sokółka leaves at 15:32. The fastest train without transfers is PODLASIAK. The journey on this train takes 04:15. Currently on the route Łowicz Główny – Sokółka there are no other trains operated by PKP Intercity. The train finishes at Sokółka.