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

🇺🇸 N8853Q - Boeing 737MAX 8 - Southwest Airlines SWA1087/WN1087, Baltimore/Washington Thurgood Marshall (BWI) to Harry Reid (LAS) - 3.5 mi away @ 29850 ft, heading W at 381 mph. Spotted 73x before. [05:34:12 PM CST] #AC3338 #N8853Q #B38M #SOUTHWEST #SWA1087 #WN1087 #ADSB #ADSBbot

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

🇺🇸 N8581Z - Boeing 737NG 800/W - Southwest Airlines SWA1087/WN1087, Louisville Muhammad Ali (SDF) to Harry Reid (LAS) - 4.3 mi away @ 35450 ft, heading WNW at 364 mph. Spotted 82x before! [06:09:35 AM CST] #ABC7A3 #N8581Z #B738 #SOUTHWEST #SWA1087 #WN1087 #ADSB #ADSBbot