Help confirm?

[Marss]

Hello! I will be travelling this summer and was hoping someone would be interested in confirming what I think is possible in each state I will be in?
United airlines no stop, will check bag with handgun in locked box as described on website.
Landing in denver and then driving to Oklahoma, Kansas and Texas. then going back to Colorado to fly back home.
I do have conceal carry permit in oregon but doesnt seem to matter in other states I am travelling?
Colorado, can only have gun in car and not on person.
Oklahoma, okay for conceal carry
Kansas okay for conceal carry
Texas now okay for conceal carry.

Would anyone be interested in helping me to confirm?

 

[Marss]

Yeah.. thats why I was thinking it should be okay if kept in vehicle while driving through.. (edited to add that it really doesn't help a whole lot if kept that way.. lol)