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

🇺🇸 N8903H - Boeing 737MAX 8 - Southwest Airlines SWA1121/WN1121 (BWI-LAS-LGB) - 4.4 mi away @ 38075 ft, heading W at 517 mph. Spotted 52x before! [10:04:37 AM CDT] #AC481D #N8903H #B38M #SOUTHWEST #SWA1121 #WN1121 #ADSB #ADSBbot

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

🇺🇸 N8879Q - Boeing 737MAX 8 - Southwest Airlines SWA1121/WN1121 (BWI-LAS-LGB) - 4.4 mi away @ 37150 ft, heading W at 476 mph. Spotted 50x before! [09:53:41 AM CDT] #AC3B78 #N8879Q #B38M #SOUTHWEST #SWA1121 #WN1121 #ADSB #ADSBbot