Border Crossings: Lithuania - Poland
Note that there is a one hour time difference between Lithuania and Poland
(Šeštokai -) Mockava LG - Trakiszki PKP (- Suwałki)
[D] Standard gauge [1435 mm] track crosses the border and continues to Kaunas as "Rail Baltica". There is broad gauge track [1520 mm] 8km south to Mockava, interlaced with the standard gauge from just south of Šeštokai. A limited FSSuMO standard gauge passenger service between Białystok and Kaunas commenced on 17 June 2016 operated by PKP DMU's but these only started calling at Šeštokai on 6 October 2017 on new SG tracks on the west side of the station as the previous interchange island platform had been demolished.
PKP had previously worked a daytime TLK service from Warszawa to the then limit of standard gauge track at Šeštokai until it was withdrawn on 15 December 2013 whilst the "Rail Baltica" project work was underway. Prior to 28 May 2005 there had been a through overnight passenger train between Warszawa and Vilnius using "SUW2000" fitted coaches gauge changing at Mockava. This is now believed to be out of use and any transhipment of freight is at Šeštokai.
A March 2019 announcement advised the Rail Baltica passenger proposals are for six trains per day in total between Warszawa and either Tallinn or Vilnius plus Tallinn – Riga – Kaunas – Warszawa – Berlin and Vilnius – Kaunas – Warszawa – Berlin overnight trains when the line opens in 2026
