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

🇺🇸 N433AN - Airbus A321 253NXSL - American Airlines AAL357/AA357, Philadelphia (PHL) to Phoenix Sky Harbor (PHX) - 4.3 mi away @ 35900 ft, heading W at 523 mph. Spotted 7x before! [11:01:42 AM CDT] #A52E50 #N433AN #A21N #AMERICAN #AAL357 #AA357 #ADSB #ADSBbot