rer fares By | February 24, 2018 | in Vote Up 0 Vote Down Answered Public Public Private Questions Anonymous asked February 24, 2018 How much will it cost to take the RER B from CDG to Chatelet Les Halles,than switch to the RER A train to Val d\'Europe? 1 answer Vote Up 0 Vote Down Public Ben ⋅ Staff ⋅ March 22, 2018 RER Tickets from CDG Airport to Val d'Europe will be 16.60 euros as of March 2018. #1 Please login or Register to Submit Answer Username or Email Address Password Remember Me