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

🇺🇸 N702FR - Airbus A321 211SL - Frontier Airlines FFT3266/F93266, Denver (DEN) to Philadelphia (PHL) - 4.0 mi away @ 34850 ft, heading E at 552 mph. Spotted 39x before! [08:44:19 AM CDT] #A95C89 #N702FR #A321 #FRONTIER_FLIGHT #FFT3266 #F93266 #ADSB #ADSBbot