Handgunlaw.us is a good site for cc info, but as stated above,you should contact State Police ect.in the states you plan to go through!
I plan to go to Maine from Ohio but the laws in NY and MASS are such that there is no way in H*** I’m taking a handgun!
Pepper Spray and a knife (which is technically illegal) are my traveling companions.

GOOD luck on your qwest and have a SAFE and enjoyable trip!