The boss of Spirit Airlines isn't about to cave in to a dying former Marine, and he doesn't lose sleep knowing his company leads the industry when it comes to customer complaints, he told FoxNews.com.

“That’s an irrelevant statistic,” Spirit CEO Ben Baldanza said when told his airline generates gripes at two-and-a-half times the rate of the next most complained about carrier.

Spirit racked up 8.27 complaints per 100,000 passengers in January, while United finished a distant second-worst, registering 3.5 complaints per 100,000 fliers, according to U.S. Department of Transportation statistics. By comparison, Southwest notched just 0.2 complaints per 100,000 fliers.