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

🇺🇸 N8564Z - Boeing 737NG 800/W - Southwest Airlines SWA3152/WN3152 (ORD-LAS-BZN) - 4.3 mi away @ 37750 ft, heading WSW at 490 mph. Spotted 109x before! [07:06:08 PM CDT] #ABC09E #N8564Z #B738 #SOUTHWEST #SWA3152 #WN3152 #ADSB #ADSBbot