A recent survey by FlightAware shared which airlines have the most delays and cancellations. For cancellations, American Airlines is No 1. on the list with Southwest as both airlines cancel 2.4% of their flights. Delta, Frontier, and Spirit are also on the list behind them. American Airlines was also on the list for the highest average time delays. Southwest has the honor of having the lowest average time delays. What is your favorite and least favorite airline?