Frontier flights may be delayed due to a variety of reasons. These can include inclement weather, aircraft maintenance, air traffic control delays, or crew shortages. Frontier operates on a network of airlines, and its schedule is subject to their conditions as well. Frontier also has its own rules, regulations, and policies that must be adhered to. Delays may occur when these policies are not met, or when staffing and maintenance issues arise. If a flight is delayed, Frontier customers can check the status of their flights online or via its customer service line.