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

🇺🇸 N623NK - Airbus A320 232SL - Spirit Airlines NKS949/NK949, Newark Liberty (EWR) to Austin-Bergstrom (AUS) - 4.2 mi away @ 35525 ft, heading SW at 508 mph. Spotted 7x before! [11:20:56 AM CDT] #A82298 #N623NK #A320 #SPIRIT_WINGS #NKS949 #NK949 #ADSB #ADSBbot