From Charles de Gaulle Airport
By highway
Take route A1 (Direction Paris Est, Lyon) to route A3. Follow A3 South (Direction Lyon, A4 Metz Nancy, Fontenay) to route A86. Take route A86 South toward Creteil, Fontenay. Take exit 18 (Le Perreaux, Fontenay Z A, Neuilly-sur-Marne) to route N34, in the direction of Chelles. Pass through 8 traffic lights, turn right to Rue du Canal.
By RER
Take the RER "B" line from the airport. Transfer to the "A" line at the station CHATELET LES HALLES, going in the direction of MARNE-LA-VALLEE (DISNEYLAND). Exit at station NEUILLY PLAISANCE. If you are at the front part of the train, you can see the GIS hotel Paris as soon as you arrive at the station.

From Orly Airport
By highway
A6 --- A86 (Direction LILLE, Bobigny, be ware that A86 is a circle, this is the right direction! ) --- Exit 19 ( immediate after the tunnel, direction Chelles, Le Perreux) --- N34 (Direction Chelles), pass through 8 traffic lights, turn the right, you will find us.
By RER A
Similar to that from Charles de Gaulle airport, because RER B connects these two airports, but from other direction see signboard.

From Beauvais Airport
The airport bus will take you to PORTE MAILLOT. There is a Metro station there. Buy one way ticket to Neuilly Plaisance (2.3 euros per person) or one day ticket MOBILIS for zone 1-3. Take Metro No.1 to Charles de Gaulle Etoile (2 stops), there you change to RER A.