Get you Boarding pass on-line. Most airlines offer this. It is best if you check in at curbside. If you do not have your boarding pass, you will get it at curbside. That will take care of your baggage and the wheel chair will come to curbside with an attendent. You will be wheeled through the security and to the gate, and if needed you can be wheeled onto the airplane. Make sure you get a seat assignment suitable for your condition.