Pay by credit card and you should not have a problem with any airline. Sure they'll change times, cancel flights and change all sorts of things during reorganization. But if you're taking an airline out of one of its critical hubs (Delta out of CVG or ATL or NWA out od DTW or MSP) I wouldn't worry. You'll get there.
I have Delta and Song flights booked for next weekend, Columbus Day and next February, and fully expect to book them again for April (if we travel anywhere) and next October.