Complaints about airlines reached record highs in 2024 — and the airline with the most complaints will surprise no one, especially people with experience flying out of Denver. According to a new report by the United States Public Interest Research Group, the U.S. Department of Transportation received 67,000 complaints about domestic airlines and over 89,000 complaints when international airlines entered the picture. To the surprise of few, the airline with the most complaints last year was Frontier. The notorious budget airline saw 23.3 complaints per 100,000 passengers. Spirit came in second, at 12.8 complaints per 100,000 passengers. The airline with the fewest complaints per 100,000 passengers was Southwest, with just 1.5, followed by Alaska, with 2.6. Frontier has ranked as the worst airline for three years in a row when counting complaints, according to the PIRG report. ✍️ Read the full story by Catie Cheshire at westword.com or at the link in our bio. #travel #airlines #fron...