What is "a one Regional?"

Many on here will try to talk you out of going to regionals no matter what, but that's not the crux of your question. The reality is, for 98% of us (including me), the regionals are the only viable way to get to the majors.

That said, I hate to be the bearer of bad news, but without a 4 year degree, you are NOT going to a major/legacy in the foreseeable future (the next five to seven years, maybe longer). They have too many highly qualified people to choose from, and the degree is a basic ingredient of those qualifications.

As for FSI, I've never worked for them, but I know plenty that have. Understand two things: if you sign a training contract with them, they will hold you to the FULL amount for the FULL 2 years, so if you decide at some point that you hate it, you'll either have suck it up or write a big check. Don't expect a lot of leniency or willingness to negotiate a pro-rated portion either, because FSI is losing a lot of people to the airlines.

Second, working at FSI is hard work. It's a 24/7 operation, and as a friend of mine who works there says, "If I go in for an hour, I go in for twelve." They will work you hard, and you are expected to provide the same level of service and commitment in the last hour that you showed in the first, and do that six days a week. It's not a cushy job by any means.

That said, FSI is a good company, and they offer a lot of movement and opportunity for advancement, though I don't know how much your lack of a degree will hinder that. They're stable, and not going anywhere, though the occasional Center may shrink or even close. They pay decently, and have decent benefits. Further, you will have an opportunity to make some great contacts, and that's a huge bonus. However, you are tied to the 2 year contract, so for 2 years you will have to say, "Thanks, but no thanks" to potential suitors.

I don't know how else to answer your question, as you didn't provide your age or flying background/hours. As to the basic choice of going to a regional vs. going to FSI, if your ultimate goal is to get to a major, the regional will give you more downtime to work on your degree (if you can afford it on regional FO pay); if you try to do that while working at FSI, good luck trying to find time to sleep. At some point, you're going to have to establish some level of currency to get a flying job. While some have done that with FSI, I don't believe it is very common, though I could be wrong.

If I were you, I'd focus on the degree for now. If you don't find that palatable, you'll have to evaluate the decision on the merits of FSI vs. the regional (and your enjoyment of flying) in question. Chances are, it's going to be several years before you making FSI money (in base salary, let alone in comparable benefits) at a regional.