TGV at CDG airport

Which terminal?

And the answers is going to depend upon when you clear C&I.

You might have to wait from nothing to almost forever to get your junk. - - and about the same amount of time to get through immigration out into the main part of the terminal. If it's T2, you can't be more than fifteen minutes from the station unless you're out there in 2G.

Wild guess: one hour would have a slight buffer on average.

Almost always the first place to go to find airport information is to the airport itself. The official CdG site is bulging with advice and maps: http://www.aeroportsdeparis.fr/ADP/en-GB/Passagers/Home/
TGV prices both non-refundable and flexible tickets depending on the route. It's inevitably a gamble whether planes are on time and the bureaucracy is running fast or slowwwww.

Last time that I changed planes at CDG in 2012, the passport control line took 45 minutes and several people missed their flight connections. If you buy a non-refundable TGV ticket, I'd allow at least three hours between flight arrival and train departure. If things go well, you have time to hit the cash machine and the sandwich shop. A serious flight delay could still wreck this plan.

I agree with what the previous posters have said. Here are a couple of extra tips to make the transfer faster:

*Don't check your luggage--carry-on only.

*If there is a long line at Passport Control, ask the staff if you can use the First Class/Business Class line instead because of your tight connection. Be sure you have a printout of your ticket to prove that your connection is tight.

*Follow the Paris By Train tips on how to navigate CDG, see parisbytrain.com.

*There is a French website with virtual tours of train stations--like Google Street View only inside the station--called Gares et Connexions. You can use this to see how you would navigate inside the CDG train station. The English language link is gares-connexions.com/en.

I'm flying Delta and my plane lands at 6:10am. Will we be ahead of the morning RUSH or in the middle of it?

Smack dab in the middle. That's when the first batch rolls in.

We are flying business and arriving at 1pm at Terminal 1. We will use the information added by contributors but it is our 1st time at CDG. Thanks

There is probably never a good time to arrive at CDG, but 6:10 a.m. is better than an hour or two later. This website will let you know what other flights are arriving about the same time as you, but that does not mean everyone goes through the same lines:

http://paris-cdg.worldairportguides.com/flight-arrivals.php

@johnschneider011: Keep in mind that you are landing at Terminal 1. You will need to take the airport shuttle train--the CDGVAL--all the way to its last stop, which is the Terminal 2 TGV station. That means adding extra time for your transfer. Do NOT get off at the Terminal 3/Roissypole stop--lots of other travelers will be getting off to catch the RER to Paris. Go all the way to the end of the line.