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

🇺🇸 N8908Q - Boeing 737MAX 8 - Southwest Airlines SWA4807/WN4807 (TPA-DAL-ORD) - 4.4 mi away @ 39025 ft, heading ENE at 550 mph. Spotted 38x before! [02:04:48 PM CDT] #AC48D3 #N8908Q #B38M #SOUTHWEST #SWA4807 #WN4807 #ADSB #ADSBbot