Location

How to reach Campus Agro, Université Paris-Saclay by public transport"

General:

Public transport, plan your journey to the campus here.
RER metro train tickets can be bought in the stations or via the "Bonjour RATP" App (only for compatible smartphones https://www.ratp.fr/en/apps/bonjour-ratp )
BUS tickets can also be bought on board (cash only) or by sending a phone text (https://www.ratp.fr/en/le-titre-a-bord-sms).

From PARIS Nord train station- Eurostar. Duration around 1h, cost around 6 euros.

take RER B direction to SAINT-RÉMY-LÈS-CHEVREUSE and stop at: "MASSY-PALAISEAU" station, then
take BUS n°91-06 or n°91-10 and stop at "Palaiseau Campus" (please note that a second ticket is needed).
Google maps suggests also a simpler journey by continuing on the RER B until the stop "Guichet" and walking uphill approx 350 steps for 25 min, but good walking shoes are needed and this is NOT compatible with carrying luggage.

From ORLY Airport (the closest airport):

the simplest journey (but less frequent): is to take directly BUS n°91-10 and stop at "Palaiseau Campus" (timetable here: https://www.albatrans.net/wp-content/uploads/2022/08/Albatrans-9110-Depliant-hiver_compressed-1.pdf ). Duration around 1h, cost 1.9 euros.
the most frequent alternative is to take the OrlyVal shuttle, followed by RER B direction SAINT-RÉMY-LÈS-CHEVREUSE and stop at: "MASSY-PALAISEAU" station, then BUS n°91-06 or n°91-10 and stop at "Palaiseau Campus". Duration around 50 min, cost around 13 euros.
A taxi journey takes 25-30 min and costs approximately 40 euros.

From Charles de Gaulle airport - Duration around 1h40, cost around 15 euros.

take RER B direction to SAINT-RÉMY-LÈS-CHEVREUSE and stop at: "MASSY-PALAISEAU" station, then
take BUS n°91-06 or n°91-10 and stop at "Palaiseau Campus" (please note that a second ticket is needed).
Google maps suggests also a simpler journey by continuing on the RER B until the stop "Guichet" and walking uphill approx 350 steps for 25 min, but good walking shoes are needed and this is NOT compatible with carrying luggage.