For those considering a gig in the regionals, here's some info on Air Wisconsin's "up to $57k" bonus. It doesn't incur any contractual time obligation; however, there are points at which the money is considered "earned" and no longer subject to payback, as detailed below.
$5k paid on first paycheck. Earned following IOE.
$26k paid upon completion of IOE, with a potential additional $8k to be paid as detailed below. If you leave the company less than one year prior to date of hire you owe the entire amount back. If it's paid back in the current tax rate you repay the net, BUT if it's repaid in the next tax year, you owe the gross. This can be a BIG deal. at 13-24 months you would owe back a pro-rated amount based on the months with the company to 24 months, after which it's considered earned.
$10k paid on first anniversary, earned on a pro-rated monthly basis.
Remaining $8k paid quarterly after year 3 if you haven't upgraded to Captain yet (unlikely, as upgrade times are 18-24 months, probably less)
The additional $8k on the post-IOE bonus is tricky for military guys. Everything published says you need to have an ATP when hired and come from a part 121, 135, or 91K job, with a type in a CREW aircraft >12.5k MGTOW. For military guys you just need the ATP and type rating in the crew airplane >12.5, no requirement for 121/135/91K experience. That means if you flew the T-1 (and got the type) and have an ATP in hand, you get the money subject to the payback schedule detailed above.