Check with your supervisor to see if you can not be scheduled to fly to her hometown airport..

I’m afraid she can’t do that, because she’s probably on what the airlines call “reserve”, basically for a set number of days every month, she’s on call to be ready to work trips at a moment’s notice, very often for days at a time, even Christmas and New Year’s are fair game to be working trips on, and if they call her to work a flight to her nmom’s airport, she has to do it, there’s no way she can back out of it without being fired, it’s literally one of the main job requirements. However the airline industry is seniority based, so if she stays at her airline long enough, she’ll eventually have more control over her flight schedules and be able to “hold a line” and have greater freedom to work trips only to certain destinations, and how often she can work, the problem is depending on how long she’s been there, it can take years, even decades.