The PKP connection between Sopot and Siemiatycze is operated by TLK. The first direct train departs at 08:10 from Sopot station. The last train to Siemiatycze leaves at 08:10. The fastest train without transfers is BIEBRZA. The journey on this train takes 09:23. Other trains operate on the Sopot – Siemiatycze route: - offer a lower ticket price and usually a longer journey time. The train finishes at Siemiatycze.
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