🇺🇸 N637FR - Airbus A321 271NXSL - Frontier Airlines FFT4473/F94473, Hartsfield/Jackson Atlanta (ATL) to St Louis Lambert (STL) - 3.8 mi away @ 3050 ft, heading NNE at 268 mph. Spotted 17x before. [01:03:56 PM CDT] #A8584A #N637FR #A21N #FRONTIER_FLIGHT #FFT4473 #F94473 #Landing #ADSB #ADSBbot