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

🇺🇸 N621NK - Airbus A320 232SL - Spirit Airlines NKS2666/NK2666, Dallas-Fort Worth (DFW) to Baltimore/Washington Thurgood Marshall (BWI) - 4.8 mi away @ 38850 ft, heading ENE at 581 mph. Spotted 12x before! [09:19:39 PM CDT] #A81B2A #N621NK #A320 #SPIRIT_WINGS #NKS2666 #NK2666 #ADSB #ADSBbot