I travel with mine. I ride it all the way to the gate and the airline then takes it down into the hold. I just hold back and are one of the last ones off and the
scooter is there waiting for me. The airline also has me pre-board so that they have a little extra time to get my scooter down and loaded.
When I use ME, I just have them place it under the bus.
The whole thing of flying with the scooter is pretty painless. Your wife will have to be pulled off to seperate screening when going through security. They do that to check the scooter, but it isn't really that bad and doesn't take much more time than the other way.