Moving about Paris, and how to get to LIPN

LIPN is within a few minutes walk from the Villetaneuse Université tram stop. This is on both Tram 8 and Tram 11.

Tram 8 connects with RER D and H at Saint-Denis, and with Metro line 13 at Saint-Denis Porte de Paris.

Tram 11 connects with RER H at Epinay Villetaneuse and with RER C at Epinay-sur-Seine.

RER H starts from Gare du Nord, which in turns is very well connected with RER B and several metro lines. RER C and D cross Paris.

To make sense of all of this, and to find out more on how to connect with these lines, please check out the maps on https://www.ratp.fr/en (the metro map concentrates on central Paris, the RER map shows the greater urban area).

A suggestion: download the Bonjour RATP app. You can not only see maps and search for itineraries, but also buy tickets, and check yourself in and out of train/metro stations using your phone (or watch!). The app will also show you how long the trip will be from an address you specify to Villetaneuse Université — at the time you ask (Google maps will of course do that as well).

The current fare is that a ticket for a single ride (whether for 1 stop or to cross Greater Paris) is 2.5€. Connections between metro, RER and Tram 11 (but not Tram 8, don't ask me why) are included in a single ticket. 'Navigo' weekly passes, valid from Monday morning to Sunday night, are available for about 31€.