what is the best way to buy five tickets between CDG and Gare du Nord on Sunday\'s a week apart?
1 answer
Buy a booklet of ten RER tickets from the CDG Airport train station ticket window (or machine) and use 5 RER tickets on each day of travel between CDG Terminal 2 and Paris Gare du Nord. RER tickets don't expire and can be used at any time in the future after they are bought.