CDG, will United accept luggage the night before a morning flight?

I would check on this with the airline, I doubt if anyone here can give you a reliable answer. I wouldn't check a bag the night before a flight if I wanted to be sure it would be there for me at the end. The one time I ever lost a bag was due to checking it too soon (not with United and not in Paris).

According to a couple of Google sources, you can't drop off luggage more than a couple of hours before your flight. Makes sense when you think about the massive amount of luggage they have to keep track of daily.

Air France allows it, but I haven't found anything for United Airlines. So at least it's known that there is not an issue in regards to the airport not allowing it.

https://wwws.airfrance.fr/en/information/bagages/depot-bagage-veille

As said above, call United. I can tell you that in a similar situation at another airport, United told me that it depends on the airport but that typically, you cannot drop luggage off more than 6 hours before your flight departs.

Thank you. Hopeful thinking about checking the bag 12 hours prior to take off. I'll leave the collapsible duffle bag home. Merci.

No matter what, United may not allow you to print your own tickets before the flight to the US, meaning you have to check-in.

Unlike the US where you show your passports to the airline employee, in France, you check-in, go through passport control, and finally go through security. At some point, the computer will determine if you are SSSS for further security control, something you would encounter when boarding the plane. It's randomly selected.

Our experience with U.S. airlines is you can’t check luggage more than 3 hours before a flight. Even then, my wife and I don’t like checking it that early for fear it will be set aside and not make the flight.

Thank you for your post. We stayed at the Sheraton in the CDG airport a few months ago. At that time, while in the hotel room, we checked in online with United and downloaded our tickets to our phones. No longer necessary to receive paper tickets. From there we went through passport control and on to security. It went smoothly. Hopefully it will again.

United allows you to check luggage up to 4 hours before your flight. I do not think United has counters open at CDG in the late afternoons or evenings.