I'm assuming that the "regional" airport you're referring to is Gary-Chicago, and if that's the case then I'm looking at the right website. As far as I can tell, they're basically a charter tour operator who has contracted with an airline (that they may or may not own) to operate flights for them. So, when you book airfare, you become a "tour participant" and are bound by the travel contract as set forth by the company. So here's the bottom line: It's probably an OK deal, but make sure you very carefully read and understand the terms and conditions involved BEFORE you confirm the reservation. Most of these charter flight operators are just fine to work with, but there's some out there that can be less than reputible. I don't know about these guys one way or the other, but as long as you're careful going into it, you'll be just fine.