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

🇺🇸 N357PV - Boeing 737NG 800/W - American Airlines AAL3107/AA3107 (PHX-DTW-PHX) - 4.3 mi away @ 36950 ft, heading WSW at 455 mph. Spotted 43x before. [06:22:59 PM CST] #A40027 #N357PV #B738 #AMERICAN #AAL3107 #AA3107 #ADSB #ADSBbot