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

🇺🇸 N418AN - Airbus A321 253NXSL - American Airlines AAL3168/AA3168, Philadelphia (PHL) to Los Angeles (LAX) - 3.4 mi away @ 27800 ft, heading W at 436 mph. Spotted 12x before. [07:56:00 PM CST] #A4F1E5 #N418AN #A21N #AMERICAN #AAL3168 #AA3168 #ADSB #ADSBbot