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

🇺🇸 N637NK - Airbus A320 232SL - Spirit Airlines NKS1688/NK1688, Indianapolis (IND) to Harry Reid (LAS) - 14.0 mi away @ 40150 ft, heading WSW at 493 mph. Spotted 7x before! [10:23:00 PM CDT] #A858F3 #N637NK #A320 #SPIRIT_WINGS #NKS1688 #NK1688 #ADSB #ADSBbot