We will be in Normandy in August for a few days, and I would like to see Giverny on our way back to Paris. We fly out of CDG on a Sunday in August, and I was thinking of sleeping in Giverny or Vernon the night before. Can anyone estimate the drive time from Giverny to CDG on a summer Sunday morning? We'll need to return our rental car at CDG, so we'd want to be there at least by 11:00 am for our 2 pm flight. Should we stay closer to CDG? Thanks!