My cat would be kicked off the plane! He is a nervous scaredy-cat & a talker. He yeowls loudly in the bathroom for attention or boredom & isn’t above screaming at me when he wants me to fix something or is anxious. He is also REALLY slow to warm up to people! Add in due to his weekend 40-60 minute car rides I know the difference between his complaint meows, his I’m car sick meows and his I need to pee meows!I also just realized, after seeing various news report of people being tossed off the plane for various disturbances, if your cats are complainers, you could be asked to leave the flight due to disturbing the other flyers.
So if you can’t sedate one cat, I would take them on the RV! Feliway and maybe some CBD oil to?