A new analysis has revealed that the year 2022 was one of the most disruptive for airline passengers on record, with nearly 78,000 grievances filed with the U.S. Department of Transportation, travel agents, and third-party booking sites. Frontier Airlines saw the highest rate of passenger complaints, with more than 20 complaints for every 100,000 passengers who boarded its aircraft. The Bureau of Transportation Statistics reported that the number of complaints about canceled flights, lost luggage, and customer service had surged to their highest level in years. Airlines are now working to improve their customer service and address the issues that have caused so many complaints.