Before you commit to this, best to get an idea on ticket cost between you home airport and work airport. Keep in mind that airfares tend to be very flexible when it comes to pricing. Supply and demand are key elements, schedule, direct filghts, etc.

What websites where you using to search? You can purchase tickets directly through the airline, as well as through a travel agent, or an online agency, (hotwire, priceline, cheaptickets, expedia are some examples) You can use the google flights to search rates on certain dates, just to get an idea of cost. However, keep in mind that it is a fluid market and rates can change. There is not much of a price difference from one site vs another. Just keep in mind that typically the price shown first will most likely the be the lowest cost, and those tend to come with lots of restrictions.

Once you determine what is your ticket cost, you can get an idea on the budget you have and see if it is worthwhile. Numerous travelers air commute, but most of them have a high paying job or their employer takes care of the cost. From what you mention you are in a not so high paying field, and desire to come home weekly or bi-weekly. Any reason why you do not move temporarily to where you might work at, and sublet your current place?

A few things to consider, is to check the frequency and schedule of travel between the cities in question. Some carriers only have one flight a date, and if there is a cancellation, or delay, you might get stuck trying to get to the destination. Also, remember that most major cities have more than one airport.

Good luck.