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

🇺🇸 N551UW - Airbus A321 231 - American Airlines AAL3254/AA3254, Philadelphia (PHL) to Dallas-Fort Worth (DFW) - 4.2 mi away @ 35600 ft, heading W at 517 mph. Spotted 10x before! [07:07:51 PM CDT] #A704F9 #N551UW #A321 #AMERICAN #AAL3254 #AA3254 #ADSB #ADSBbot