I will travel to Paris to Beauvais Airport. Then by bus to Porte Maillot. I have to reach Ivry sur Seine hotel - near RER station. What type of ticket should I buy. T was sure that best is T+ (or carnet) but RER Ivry sur Seine is in zone 2.Best regardsWitold
Most direct route from Porte Maillot to Ivry sur Seine is RER C direction Pont de Rungis - Aeroport d'Orly. 2.75€ one way using a RER Ticket you buy at Porte Maillot RER station. Probably easiest to buy it from ticket window otherwise you'll have to search ticket vending machine for Ivry sur Seine name amongst many stations.