I am a pilot with a law degree, but had the law degree before being hired as a professional pilot. Whether you can fly and do school at the same time all depends on what kind of flying schedule you can hold.

If your company does high speed (stand-up) lines, fly those and go to school during the day. Or fly weekends. Or just miss class when you have to. One of my law school classmates did little more than show up for exams, passed his classes, and graduated. It depends on the school, but many don't care if you show up for class or not, and do not track attendance. Pay the tuition, pass the exams, and you'll graduate.

Ask yourself real hard why you want to go to law school. Do you want to change careers, or fly and do law part time? Part-time practice of law is very difficult. Most law firms won't consider hiring part-time, and a judge is not going to look kindly upon special scheduling requests to accommodate your flying schedule. Ethics rules require lawyers to be contactable by their clients during normal business hours. It's not uncommon for lawyes to be disciplined or even disbarred for failing to properly communicate w/clients.

A law degree is not a ticket to easy wealth. Law schools love to talk about the tiny minority of students who get the big law firm jobs starting at over $100K, but those jobs are rare, and if you get one, you will be working 12 hour days six days a week to justify that salary. Unless you graduate in the top 10% of a tier 1 law school, your chances of that "dream job" starting at six figures is extremely remote.

Fellow pilots often wonder why I fly when I have a law degree, and assume that just because being a lawyer might pay better it must therefore be a better career. On the other hand, fellow lawyers are nearly uniformly jealous of the fact that I "escaped from the law." (Yes, that's an actual quote.) Job satisfaction amongst lawyers is extremely low. Do a few internet searches, and you'll find a lot of articles and studies talking about the fact that more than half of law school graduates are working a job that does not require a law degree within five years of graduating from law school. It's very common for lawyers to "leave the profession."