I am to travel in mid September 2016. Arriving and leaving from CDG airport. I am t travel during the week to Disney land and Versailles. The Navigo that cost Euro 22.15 covers all the zones including airport or there are hidden charges that need to be paid when one travel to CDG airports.
Thanks for you assistance and feedback.
There's no additional hidden fees for Navigo to CDG Airport, but remember that the Navigo plastic card itself costs 5€, a one-time fee for the card which you can keep and use for future visits. The 22.15€ cost is for a week of travel on the Navigo card.