We’ve transported cats via air before. A Maine Coon from HI to CA, and later three cats from CA to TN. We were on the same flights as the cats, and worried every mile of the way that they’d be hurt or lost somewhere along the way. They all did fine.
Used to have a MC. He was awesome and I miss him dearly.
Last spring, the other half's sister flew from JAX to LAX to take one cat from LAX to PARIS. The other half took a lemo to LAX where she took another cat to PARIS.
The French allow cats to be carried as carry on baggage in the cabin but the UK doesn't allow that.
All of this because a Southern California immigrant got tired of liberal Kalifornia and wanted to go back to London. She originally came to Kalifornia because her parents left London for Kalifornia.
So FIVE cats and kittens were transferred this way by air and got to ride in the plane as a carry on.
The extras who carried a cat got a round trip ticket from LAX to Paris and from London back to LAX. They had to pay for their motel in Paris but stayed with the cat owner in London for a low cost 2 week trip to Europe.
But the story doesn't quite end there. Ken, a young kitten, did NOT have all of his vaxxxinations so he had to go a few months later. We transferred him by RV to JAX (as part of a summer excursion) where a woman flew down from SOUTH CAROLINA to take Ken to London via France- while she got her free round trip tickets to Europe.
The bottom line is the former London girl who wanted to move back to London from Southern Kalifornia with her cats now has all SIX of them. Only a non cat lover would ask why she just didn't get new cats in London so she wouldn't have to pay so much for the round trip tickets.