My mom is planning on going south, Fort Meyers, FL for 3 months, then visiting her son in Oklahoma City for 2 weeks and back home to Newark, NJ.

The itinery would be something like this:
January - 3 Newark, NJ to Fort Meyers, FL
April 3 - Fort Meyers, FL to Oklahoma City, OK
April 17 - Oklahoma City, OK to Newark, NJ

She would like to use Continental and prefers non-stop.

My question is how to do this?

Any help is appreciated.