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

🇺🇸 N360FR - Airbus A320 251NSL - Frontier Airlines FFT2345/F92345, Indianapolis (IND) to Denver (DEN) - 4.7 mi away @ 38125 ft, heading SW at 495 mph. Spotted 24x before! [04:16:12 PM CDT] #A40CD9 #N360FR #A20N #FRONTIER_FLIGHT #FFT2345 #F92345 #ADSB #ADSBbot