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

🇺🇸 N649DL - Boeing 757 232 - Delta Air Lines DAL8931/DL8931, Miami (MIA) to San Antonio (SAT) - 4.4 mi away @ 36425 ft, heading NE at 578 mph. Spotted for first time! [12:27:14 PM CST] #A88700 #N649DL #B752 #DELTA #DAL8931 #DL8931 #ADSB #ADSBbot