Air France do not switch terminals often for a particular destination. But you may want to double check before you go. The boarding pass holder that AF gives out at Houston will also have the map to tell you how to transfer from one terminal to another.

Schengen is a group of European nations that share a common travel area, so going among Schengen countries, you don't go through passport control. Both France and Italy are Schengen countries, which is why you go through passport control at CDG. The CDG-FLR flight will be like a domestic US flight.

Thank you, Rkkwan, that is a great explanation and so helpful. I'm also happy to hear there will be a map with my ticket. I hope we make the connection. I've seen some questions about shuttle versus walking between terminals. It sounds like you recommend walking?

There is an airside shuttle, but it doesn't go to 2D, so you need to go through immigration at 2E. Once you're through, it's faster and easier to just walk to 2D rather than to find and wait for the shuttle.

From 2E to 2D, you'll walk through the TGV/RER station.

Thank you so much, this is wonderful information! One last question: It sounds as though some planes land on the tarmac and passengers are shuttled to the gate, which can be a big problem for connections. Do you have any advice if this happens? What is the reason for some planes not landing at the gate and is there any way to predict whether it will happen to me? Thank you again, Rkkwan!

They simply don't have enough gates at CDG for all the flights they have. There's no real pattern which flight will get the bus, but I believe it's mostly 2E that is affected the most. It just takes longer to get to/from the terminal.

That makes sense. I better cross my fingers and hope for the best.

Thank you so, so much for all this great information!!!

Well, I am off on this adventure later this afternoon (day changed from original post, but still same "connection." Will advise how it worked, and thanks for all the help!

Good luck on the connection, Peter! And have a FABULOUS time in Greece! We can't wait to hear about it when you get back.

Believe it or not, I actually made this flight, but that was ONLY because the outbound was delayed by 75 minutes. Never again! You don't go to hell in a handbasket--you fly into CDG!

My one-night "connection" in Paris on the way back was fabulous, whetted my appetite for more, thanks for all the suggestions.