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

🇺🇸 N8542Z - Boeing 737NG 800/W - Southwest Airlines SWA1740/WN1740, Baltimore/Washington Thurgood Marshall (BWI) to Harry Reid (LAS) - 4.6 mi away @ 38300 ft, heading W at 513 mph. Spotted 70x before! [03:41:56 PM CDT] #ABB8EA #N8542Z #B738 #SOUTHWEST #SWA1740 #WN1740 #ADSB #ADSBbot

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

🇺🇸 N8938Q - Boeing 737MAX 8 - Southwest Airlines SWA1740/WN1740, Baltimore/Washington Thurgood Marshall (BWI) to Harry Reid (LAS) - 4.9 mi away @ 38025 ft, heading W at 521 mph. Spotted 9x before! [10:05:28 AM CDT] #AC53F8 #N8938Q #B38M #SOUTHWEST #SWA1740 #WN1740 #ADSB #ADSBbot