Florida-based Spirit Airlines has topped another unflattering ranking.
A few weeks ago the U.S. Public Interest Research Group Education Fund analyzed complaint rates among passengers over the last five years. The ultra-low-cost carrier came out on top of that list.
Air Canada came in second with 14%, followed by Frontier Airlines with 11% and Virgin America with 9%.
Southwest Airlines was at the bottom of the list, with only 1%.
The service given by flight attendants may reflect how they are treated by airlines, according to a flight attendants union.