Frontier Airlines Says Its Unliable After Passenger Allegedly Finds Urine-Soaked Bag

On June 9, 2025, a Frontier Airlines passenger flying from Seattle to Dallas discovered that her under-seat carry-on bag, which was a backpack, had been somehow soaked with a mysterious, odorous fluid. While she initially assumed the fluid to be water or soda, she quickly noticed that the liquid was yellow while attempting to dry the item in the lavatory. She believed that the person in front of her had urinated during the flight, something for which she sought out the help of airline staff.