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

🇺🇸 N630FR - Airbus A321 271NXSL - Frontier Airlines FF4567 - 3.4 mi away @ 13675 ft, heading WNW at 394 mph. Spotted 10x before! [09:30:47 PM CDT] #A83E49 #N630FR #A21N #FRONTIER_FLIGHT #FF4567 #TakingOff #ADSB #ADSBbot