Utah -- DL 88 flies CDG-SLC, plus flights from Mexico. Arriving international passengers are allowed 1L of alcohol, and that's it. Bringing back a case of wine from your Paris trip would be an expensive mistake. It's not a matter of duties; 1L is a hard limit. Anything over that will be confiscated.

Technically speaking, passengers on domestic flights (or driving into the state) aren't allowed to bring any alcohol at all, but there's no customs inspection to catch you.

Utah allows only licensed distributors to bring any amount of alcohol into the state, with only a handful of exceptions (like the international arrivals at SLC or people moving to Utah with their wine cellar). Individuals bringing small amounts for their own personal use are not one of the exceptions.