I am working on my LAX, Dallas/Fort Worth airport, and San Antonio report but stopped by to give you LAX info.
Most shuttles have disabled vans and will drop you off at the door but check. Otherwise family will drop you off at the front door of the terminal. If it is off hours then you will have to sit there and wait for the family to find a rare skycap.
I got to LAX at 3 am for a 6 am flight and had to wait an hour and a half. I followed a male management type American Airlines employee who was showing this dude how things worked. THERE WERE NO WHEELCHAIRS, SKYCAPS OR ANYTHING. Finally I got a woman to talk to me and she said get inline and pay the hidden $15 per bag charge. Then the clerk took my money and told me to TSA.
Now this is the third person I asked for wheelchair assistance and now am told to go over there and to TSA. They are closed so I asked the fourth person and they just said go to the other TSA in the next terminal so I drug my luggage two blocks. They do not work for American Airlines so go back and find someone with a wheelchair. Then I talked to another clerk who said something to the effect that it was not her department I think. Then the first woman blamed me for moving around. then I sat for 15 minutes and was the only fat lady and person needing a wheelchair. I asked a women if I could speak to a manager and she told me they wore brown shirts. Finally at almost 5 am I got a wheelchair.
The arms on American Airlines and most planes DO NOT GO UP. Stewards and whomever all say they cannot get the arms to go up on 757 and other planes. The same thing happened on a prior trip. You cannot use crutches in a plane unless you are good at walking sideways. They do have for fat people the extender belts.
www.seatguru com is a great guide and check it out.
Returning to LAX was easy as there was people there to pick you up in a chair then take you to the baggage area or your next flight. He helped me get my bags off the carrousel then would have drug them to the curb along with me but I was trying to get a care rental shuttle.
Overall LAX stinks as far as Anerican Airlines departures go. Cannot talk about other airlines. I like Delta though, they were nice ot me. Dallas has wheelchairs but also carts and you can get on and off as needed. Very nice drivers and excellent service.