When do I have to be at CDG airport the latest?

Hello! I have a question about Charles de Gaulle airport. I have one-day stopover in Paris, and I should catch my second leg from this airport. I would like to spend as much time as possible in the city, but Im not sure when do I have to be at the CDG at latest. Thank you in advance.

Yes, spending as much time as possible in Paris sounds tempting, but dont put yourself in position to regret it after you miss your flight. An overnight stay will not allow you to see much of the attractions the city has to offer, so better be there on time, and you should check it with your airline. See, that time is usually 2 hours before departure, but there are airlines that require two hours and a half. I hope this helps.