The eight-station double-track line will branch off the Gdansk – Gdynia line west of Gdansk Wrzeszcz station, turning south through Bretowo and Jasien, crossing the S6 highway to reach a park-and-ride station at Matarnia. From here it will continue west to Port Lotniczy, which will serve the airport, before joining the existing Koscierzyna – Gdynia line at a triangular junction south of Osowa station.

PKM says dmus will operate a 15-minute interval service, with a journey time of 18 minutes between Wrzeszcz and Port Lotniczy. The line is due to open in April 2015 and is expected to carry around 12.5 million passengers per year.