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

🇺🇸 N204NV - Airbus A320 214 - Allegiant Air AAY537/G4537, Gerald R Ford (GRR) to Austin-Bergstrom (AUS) - 4.0 mi away @ 33350 ft, heading SW at 510 mph. Spotted 4x before! [03:47:41 PM CDT] #A1A21F #N204NV #A320 #ALLEGIANT #AAY537 #G4537 #ADSB #ADSBbot