Located on the Hoekse Lijn, it is served by RET Metro Line B at all times, and Line A during peak periods.

Vlaardingen Oost was opened on 17 August 1891 as a local railway station on the Hoekse Lijn.

The Nederlandse Spoorwegen stopped operating the line, including the Vlaardingen Oost railway station, on 1 April 2017 to enable conversion for metro train operations.

[1] The station is still accessible for diesel trains, because nearby companies still require trains to deliver supplies.

As of 2019, Vlaardingen Oost is served by 6 trains per hour on RET Metro Line B, of which 3 per hour travel the full length of the route, and 3 travel only as far as Steendijkpolder[1] During peak periods, the station is also served by 6 trains per hour on Line A, which travel as far as Vlaardingen West.