Even if you don't stay at the pricey Hilton Hotel, the spot is still easy to get to if you go via the Regional Express Network (RER) urban rail network. Take the RER B line and exit at the Charles de Gaulle 1 station. ... For business class passengers, there is a 2600-square-meter lounge with a seating capacity for 700. As S3 was fully operational on March 30, it provides an additional number of gate-parked long-haul flights at T2 from 52 percent to 80 percent. ...