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

🇺🇸 N545US - Boeing 757 251/W - Delta Air Lines DAL304/DL304 (DTW-SNA-DTW) - 31.9 mi away @ 40075 ft, heading SW at 526 mph. Spotted once before! [09:03:09 AM CDT] #A6EC52 #N545US #B752 #DELTA #DAL304 #DL304 #ADSB #ADSBbot