Located within the station for TER Grand Est tickets.
The does not currently have an active ticket window (guichet) with a physical staff member for ticket sales. Instead, passengers are served by automatic ticket machines and the station remains open daily as a waiting area. Station Access and Opening Hours Ouverture Guichet Gare Longuyon
Since there is no physical guichet, you can purchase tickets via: Located within the station for TER Grand Est tickets
The station building (waiting room) is accessible every day, including public holidays: 05:30 to 20:30. Ticket Services Ouverture Guichet Gare Longuyon