A Frontier Airlines passenger was horrified to discover her under-the-seat carry-on bag was soaked with urine following a recent flight — and shocked when airline staffers waved off her complaints.

Wild viral footage has captured Frontier Airlines gate agents getting into a bust up with a passenger who had sniped "I'm never flying this sh---y airline again" after being hit with an unexpected ...

Frontier Airlines had nearly double the number of complaints per 100,000 passengers as Spirit, which came in second last year, and more than triple the average across the 10 largest U.S. airlines, … ...