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

🇺🇸 N343FR - Airbus A320 251NSL - Frontier Airlines FFT44/F944, Chicago O'Hare (ORD) to Cancun (CUN) - 4.6 mi away @ 37600 ft, heading SSW at 515 mph. Spotted 25x before! [08:31:25 AM CDT] #A3C900 #N343FR #A20N #FRONTIER_FLIGHT #FFT44 #F944 #ADSB #ADSBbot