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

🇺🇸 N316NV - Airbus A319 111 - Allegiant Air AAY1636/G41636, Scott Afb/Midamerica St Louis (BLV) to Harry Reid (LAS) - 4.5 mi away @ 18700 ft, heading WNW at 491 mph. Spotted 8x before! [12:36:08 PM CDT] #A35E5B #N316NV #A319 #ALLEGIANT #AAY1636 #G41636 #ADSB #ADSBbot