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

🇺🇸 N728NK - Airbus A321 271NXSL - Spirit Airlines NKS305/NK305, Los Angeles (LAX) to Kansas City (MCI) - 3.3 mi away @ 7650 ft, heading E at 358 mph. Spotted for first time! [03:17:24 PM CST] #A9C27A #N728NK #A21N #SPIRIT_WINGS #NKS305 #NK305 #Landing #ADSB #ADSBbot