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

🇺🇸 N714FR - Airbus A321 211SL - Frontier Airlines FFT1827/F91827, Chicago O'Hare (ORD) to Phoenix Sky Harbor (PHX) - 4.1 mi away @ 33575 ft, heading SW at 429 mph. Spotted 41x before! [06:29:41 PM CDT] #A98B76 #N714FR #A321 #FRONTIER_FLIGHT #FFT1827 #F91827 #ADSB #ADSBbot