anyone flown to the U.S who is wheelchair bound??

Hi all, I would like to take my mum to the states next year for a big holiday. Flying Manchester to Atlanta U.S. She can not transfer and is totally without the use of her legs so would need to be lifted into her airplane seat etc. Its a long flight and would be interested in talking to any adult M.S travellers who have undertaken such a trip to get an idea on how it was for them and what to be aware of. Much appreciated :slight_smile: