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

🇺🇸 N419AZ - Boeing 767 319ERBDSF/W - Prime Air ATN3366/8C3366, Cincinnati/Northern Kentucky (CVG) to Ontario (ONT) - 4.3 mi away @ 38175 ft, heading WSW at 481 mph. Spotted 18x before! [09:46:51 PM CDT] #A4F5A7 #N419AZ #B763 #AIR_TRANSPORT #ATN3366 #8C3366 #ADSB #ADSBbot