Originally Posted by
ironmanjt
How is the transfer between Terminal 1 (UA arrivals) and Terminal 3 departures these days? Is 2:10 likely to be a long enough connection to pull this off?
That should be plenty.
Once you get out, go to the lowest level of T1 and get on the CDGVal to Roissypole. Terminal 3 is a few minutes walk from there. Train ride is a couple of minutes and it runs frequently.