As a reference when we brought C-Me, Franie, and Trip home… that was three baby puppies (9 and 11 weeks) that we had to take out of their carrier, ggggg... and it was exciting to say the lest. But we did just fine!!!
I do remember one time that when I was flying from NY to SFO, there was a person with a cat in a carrier that was not concerned at all that the cat was going to go through the xray... I did tell her that she needed to remove the cat, her response was "why"... my answer.. "and would you go through that?"