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

🇺🇸 N914UY - Airbus A321 231 - American Airlines AAL2276/AA2276 (CLT-ONT-CLT) - 4.0 mi away @ 31500 ft, heading W at 470 mph. Spotted 7x before! [07:07:40 PM CST] #ACA760 #N914UY #A321 #AMERICAN #AAL2276 #AA2276 #ADSB #ADSBbot