Can I take the RER B train directly from Massy to Charles de Gaulle airport with the strike on Friday, 22 June? If not, how can I get to the airport?
Yes you can take the RER B train from Paris Massy Palaiseau to CDG Airport during the Paris train strike 2018, but you need to transfer from underground RER B train to surface RER B trains parked in one of the lanes 30-36, that will complete the journey on surface level. Same ticket. See the Paris train strike article for more information.