No.
Spend an hour, go to one of the trusted online sources like
https://www.handgunlaw.us and plot your course.
In short, few/none allow loaded long guns. So you're looking at pistols, loaded or unloaded, open or concealed depending on licensing.
Print off each page, and know the law before entering and traveling the state. You can generally plan pretty well if you review each, and plot a sensible route, and make some simple notes to reference.
If you have time, get whatever non-resident licenses you require. Generally a UT or FL license will cover most states and is affordable.
And if you come through Boise stop and say hi.