Ever since the new terminal opened, the TSA security check line has taken much longer than before, even when it was slow
For whatever reason, everything takes so much longer with the new system, even going through the TSA precheck. Where I used to be able to get there and through TSA precheck in 5-10 minutes even at its busiest, it now takes at least double that.
I hope you made your flight. The new terminals are nice, but new doesn’t always mean better. The old SLC terminals were a breeze to get anywhere and fast to get through.