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

🇺🇸 N636NK - Airbus A320 232SL - Spirit Airlines NKS2730/NK2730, Indianapolis (IND) to Dallas-Fort Worth (DFW) - 4.5 mi away @ 37975 ft, heading SW at 544 mph. Spotted 13x before! [05:08:44 PM CDT] #A8553C #N636NK #A320 #SPIRIT_WINGS #NKS2730 #NK2730 #ADSB #ADSBbot