Hi Aslan. It can vary by airline. If your dogs are small enough (say, 5 lbs each), you may be able to bring them in one carrier. My friend flew with two puppies in the same crate to deliver them to their new owners. Some airlines will allow you to pay for a second seat in order to travel with two but many will not.

Flying I assume? Yes. My breeder flew my 8 month old puppy to me in a carrier underneath her airline seat. It’s likely your pup has not had all her shots at that age though so should remain in the carrier as not to be exposed to germs.

Drugs. I’m not joking. That’s probably only the only thing that will work if your dog really barks at everything all of the time. Trazadone can work wonders and you can get it from your vet. Airlines recommend against sedatives now though so discuss this with your vet. Personally, I would only resort to this if there was a reason my dog HAD to fly with me. Like moving or something. If it was just for fun, I would leave my dog at home or drive. Good luck!