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

🇺🇸 N609FR - Airbus A321 271NXSL - Frontier Airlines FFT7007/F97007 - 3.4 mi away @ 3875 ft, heading NW at 271 mph. Spotted 50x before! [02:41:50 PM CDT] #A7E93B #N609FR #A21N #FRONTIER_FLIGHT #FFT7007 #F97007 #Landing #ADSB #ADSBbot