Originally Posted by JOUY31

1) The current situation (which may change until next June, but this is unlikely)
- FCO-CDG arrives in 2F
- CDG-LHR leaves from 2E
- 1 hour connection is short, but doable; personally, I prefer to have a longer connection in case of a late arrival from FCO

2) There are only seven flights a day between CDG and LHR, but you should be reaccomodated without a problem. I don't know whether 35mn is a legal connection in whichever terminal (probably T4) AF will be next June in LHR.

Overall, I would recommend taking the earlier FCO-CDG flight at 7:20 instead of the 10:20 flight.