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

🇺🇸 N157AA - Airbus A321 231SL - American Airlines AAL661/AA661, Philadelphia (PHL) to Harry Reid (LAS) - 3.9 mi away @ 32150 ft, heading W at 497 mph. Spotted 9x before! [04:41:34 PM CST] #A0E431 #N157AA #A321 #AMERICAN #AAL661 #AA661 #ADSB #ADSBbot