Airlines are cancelling so many flights due to a number of reasons including COVID-19, new travel restrictions or regulations, and financial strain on the airline industry. COVID-19 is causing a dramatic drop in airline travel requests and has forced airlines to suspend routes and cancel flights for many destinations. New travel restrictions or regulations can also interrupt flight schedules, forcing airlines to reduce their available flights. Financial strain has forced many airlines to reduce flights and staff to remain financially viable. All of these elements, combined with other external factors, have created an unprecedented, unpredictable airline industry.