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

🇺🇸 N8950L - BOEING 737 MAX 8 - Southwest Airlines SWA2168/WN2168, Chicago Midway (MDW) to San Antonio (SAT) - 4.4 mi away @ 36275 ft, heading SSW at 480 mph. Spotted 23x before. [10:56:41 AM CDT] #AC5A4A #N8950L #B38M #SOUTHWEST #SWA2168 #WN2168 #ADSB #ADSBbot