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

🇺🇸 N963AN - Boeing 737NG 823/W - American Airlines AAL1504/AA1504 (ORD-RSW-ORD) - 4.3 mi away @ 30450 ft, heading NNE at 590 mph. Spotted 36x before! [07:56:25 PM CDT] #AD6758 #N963AN #B738 #AMERICAN #AAL1504 #AA1504 #ADSB #ADSBbot