From Roissy – Charles de Gaulle airport:
RoissyBus to Paris – Opéra, metro line 8 direction Balard to Madeleine, Metro line 12 direction Mairie d’Issy to Porte de Versailles – Parc des Expositions.
RER B direction Saint-Rémy-lès-Chevreuse to Cité Universitaire, Tramway T3 direction Pont du Garigliano to Porte de Versailles – Parc des Expositions.
By car, the approximate journey time is 40-45 minutes.
From Orly airport:
Orlyval to Antony, RER B to Cité Universitaire, Tramway T3 to Porte de Versailles – Parc des expositions station.
Orlybus to Denfert-Rochereau, RER B to Cité Universitaire, Tramway T3 to Porte de Versailles – Parc des Expositions station.
By car, the approximate journey time is 20 minutes.