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

🇺🇸 N604FR - Airbus A321 271NXSL - Frontier Airlines FFT3521/F93521, Cincinnati/Northern Kentucky (CVG) to Harry Reid (LAS) - 4.1 mi away @ 33875 ft, heading W at 516 mph. Spotted 30x before! [03:58:32 PM CDT] #A7D6A8 #N604FR #A21N #FRONTIER_FLIGHT #FFT3521 #F93521 #ADSB #ADSBbot