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

🇺🇸 N7867A - Boeing 737NG 7Q8/W - Southwest Airlines SWA2820/WN2820 (ORD-DAL-HDN) - 4.2 mi away @ 29975 ft, heading SW at 448 mph. Spotted 63x before! [08:28:29 AM CDT] #AAAA1E #N7867A #B737 #SOUTHWEST #SWA2820 #WN2820 #ADSB #ADSBbot