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

🇺🇸 N409FR - Frontier Airlines FFT3302/F93302, Denver (DEN) to St Louis Lambert (STL) - 4.0 mi away @ 7975 ft, heading E at 353 mph. Spotted for first time! [09:27:33 AM CST] #A4CE9D #N409FR #A20N #FRONTIER_FLIGHT #FFT3302 #F93302 #Landing #Arrival #ADSB #ADSBbot