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

🇺🇸 N428UP - Boeing 757 24APF - United Parcel Service UPS5992/5X5992, Louisville Muhammad Ali (SDF) to Spokane (GEG) - 3.7 mi away @ 30100 ft, heading WNW at 436 mph. Spotted 5x before. [03:17:10 PM CST] #A51B27 #N428UP #B752 #UPS #UPS5992 #5X5992 #ADSB #ADSBbot

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

🇺🇸 N428UP - Boeing 757 24APF - United Parcel Service UPS5774/5X5774, Chicago/Rockford (RFD) to George Bush Intcntl/Houston (IAH) - 4.8 mi away @ 39650 ft, heading SSW at 564 mph. Spotted 4x before! [04:32:25 PM CDT] #A51B27 #N428UP #B752 #UPS #UPS5774 #5X5774 #ADSB #ADSBbot