Frontier Airlines has grounded all flights across the US due to IT issues, the FAA advisory says. The FAA's advisory notes that "all Frontier Airlines (FFT)" destinations are impacted, but only for departing flights.

The Federal Aviation Administration announced that Frontier Airlines implemented a ground stop for all destinations, but lifted the order shortly thereafter.

Frontier confirmed that the ground stop had been lifted, and said its systems operations center experienced a short internet outage that caused the airline to initiate a brief gro