1. How does she get on the plane? Will her walker fit down the aisle?
The walker will probably not fit down the aisle, but if she can walk holding onto seatbacks or holding onto someone, she may be able to walk. For people who can't walk, they have an aisle chair available. That is a special narrow wheelchair that will fit down the aisle for her to get to her seat.
You can work with the Special Needs Department (they may say they don't have one, but the
do have some department in each airline that handles special needs. A person with a disability can usually reserve seats way before the seat assignments open up to everyone else. They can also make sure that she gets a seat close to the front of the plane.
2. What happens to her wheelchair and walker? Are they considered carryons, or do they get put in the baggage area of the plane?
They do not count against her checked or carryon baggage allowance. If they are small and can be folded, they can be brought onto the airplane and put in the closet. A walker will usually fit in the closet, but some wheelchairs are too big for the closet (and some airplanes have small closets. If she wants the walker/wheelchair in the closet, they
have to allow her to put them there if they fit, no matter what the flight attendant says (sometimes the flight attendent will say the closet is for use of first class passengers).
If they are checked, how does she get them back when she arrives since she can't get off the plane without them?
She can do a gate check, which means that she keeps them with her and can use them up until she actually gets on the plane. Depending on the plane and how big her wheelchair is, she may even be able to wheel the chair into the entrance/front galley area of the plane. When she first checks in, she should let the agent know that she will want to gate check to wheelchair and walker. They may give her a gate check tag right a away (a special baggage tag that indicates that the wheelchair should be delivered to the gate) or they may tell her to get a gate check tag from the gate agent. Just don't wait until boarding has begun - do it before.
Also, make sure that the gate agent knows that she will require extra time and would like to pre-board. They used to automatically pre-board anyone with a wheelchair; they often don't do it now unless you ask.
3. Does she need to get to the airport extra early because of her disability?
If she doesn't have a seat assigment (or they assigned her row 47, like they did us last trip, she should get there early). Going thru security takes a little longer because they will hand chekc the wheelchair and walker. If she is able to walk, they may allow her to walk thru the scanner, but they will still hand check the wheelchair.
Will they allow an extra person to go to the gate to help her, if that person is not travelling?
Not sure about this one, since we always travel with DD (who uses a wheelchair). I have heard of people with disabilities who are traveling alone being allowed to bring someone to the gate with them. This probably varies by airport, so check with the
travel agent and the airline.