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

🇺🇸 N402UP - Boeing 757 24APF - United Parcel Service UPS3920/5X3920, Louisville Muhammad Ali (SDF) to Ontario (ONT) - 4.2 mi away @ 35800 ft, heading WNW at 422 mph. Spotted 5x before! [06:17:50 PM CST] #A4B5DF #N402UP #B752 #UPS #UPS3920 #5X3920 #ADSB #ADSBbot