Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N374FR - Airbus A320 251NSL - Frontier Airlines FFT4672/F94672, Phoenix Sky Harbor (PHX) to Detroit Metro Wayne County (DTW) - 4.1 mi away @ 35125 ft, heading ENE at 603 mph. Spotted 28x before! [05:09:34 AM CDT] #A44334 #N374FR #A20N #FRONTIER_FLIGHT #FFT4672 #F94672 #ADSB #ADSBbot

Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N369FR - Airbus A320 251NSL - Frontier Airlines FFT4672/F94672, Phoenix Sky Harbor (PHX) to Detroit Metro Wayne County (DTW) - 4.6 mi away @ 39150 ft, heading ENE at 538 mph. Spotted 11x before! [04:21:02 AM CDT] #A42E48 #N369FR #A20N #FRONTIER_FLIGHT #FFT4672 #F94672 #ADSB #ADSBbot