What role does innovation play in the airline industry? Quite a substantial one, if we look back at the last few decades of the airline industry. It’s well known that the low-cost carrier (LCC) model in the United States was most successfully executed by Southwest Airlines, making it the only major carrier in the US to keep its head above water. Though the essential features of Southwest’s LCC model—a single aircraft type, point-to-point service, no food service, use of less congested airports, etc.—-----are well known and well documented, legacy carriers have been unable to emulate Southwest because of high cost structures and a history of adversarial union relations that prevents them from renegotiating employment contracts.