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

🇺🇸 N8579Z - Boeing 737NG 800/W - Southwest Airlines SWA225/WN225 (ATL-MCI-MDW) - 4.3 mi away @ 37050 ft, heading NW at 467 mph. Spotted 92x before. [04:44:07 PM CST] #ABC504 #N8579Z #B738 #SOUTHWEST #SWA225 #WN225 #ADSB #ADSBbot

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

🇺🇸 N8831L - Boeing 737MAX 8 - Southwest Airlines SWA225/WN225, Denver (DEN) to Baltimore/Washington Thurgood Marshall (BWI) - 4.6 mi away @ 37025 ft, heading ESE at 567 mph. Spotted 67x before! [01:33:56 PM CST] #AC2B80 #N8831L #B38M #SOUTHWEST #SWA225 #WN225 #ADSB #ADSBbot