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

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

Frontier Airlines is again pursuing a merger with Spirit Airlines, with Spirit mired in chapter 11 bankruptcy proceedings.

After months of playing coy, Frontier Group Holdings acknowledged on 29 January having "significant interest" in creating the USA's fifth-largest through the acquisition of ailing ultra-low-cost carrier Spirit Airlines.