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

🇺🇸 N373FR - Airbus A320 251NSL - Frontier Airlines FFT2145/F92145, Chicago O'Hare (ORD) to Harry Reid (LAS) - 4.2 mi away @ 35200 ft, heading SW at 461 mph. Spotted 18x before! [10:44:51 PM CDT] #A43F7D #N373FR #A20N #FRONTIER_FLIGHT #FFT2145 #F92145 #ADSB #ADSBbot