Frontier is ‘the worst’! From unexpected extra fees after booking, hours of delays and unpleasant flight attendant it just doesn’t get any suckier than Frontier. The airline is plagued with unhappy employees and a company motto of ‘if you love to fly but never on time fly Frontier’, I ask the question how are they still in business. Sour faced angry is the normal attitude and anything the customer needs is just too much. No one would dare make a hubbub in an airport these days and they take full advantage.