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

🇺🇸 N572UW - Airbus A321 231 - American Airlines AAL3238/AA3238, Dallas-Fort Worth (DFW) to Philadelphia (PHL) - 4.1 mi away @ 33775 ft, heading NE at 618 mph. Spotted 17x before! [11:33:32 AM CST] #A757AE #N572UW #A321 #AMERICAN #AAL3238 #AA3238 #ADSB #ADSBbot