The number one reason people hate airlines isn't due to flight delays or inconsistent pricing. According to Catey Hill of Consumer Report's MarketWatch, customers' biggest gripe concerns lost luggage -- and for good reason.
"The airlines lose 24 million bags a year," Hill told HuffPost Live on Wednesday. "Sometimes they're permanently lost, sometimes they're just delayed. But no wonder it's a huge complaint."
What airlines have received the most flack from irritated customers? Hill said Spirit and Frontier get the most "complaints per boarding," likely a result of charging additional fees for checking bags.
"A lot of it is people are mad," she explained. "They have to pay a fee for something, and that starts them off all angry."
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