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

🇺🇸 N609FR - Airbus A321 271NXSL - Frontier Airlines FFT7567/F97567 - 3.3 mi away @ 11500 ft, heading NW at 389 mph. Spotted 51x before! [07:54:11 PM CDT] #A7E93B #N609FR #A21N #FRONTIER_FLIGHT #FFT7567 #F97567 #Landing #ADSB #ADSBbot