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

🇺🇸 N466AN - Airbus A321 253NXSL - American Airlines AAL2035/AA2035 (PHL-SFO-PHL) - 4.6 mi away @ 36825 ft, heading E at 544 mph. Spotted 9x before! [04:24:11 PM CDT] #A5AFF2 #N466AN #A21N #AMERICAN #AAL2035 #AA2035 #ADSB #ADSBbot