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

🇺🇸 N17017 - Boeing 787 10 - United Airlines UAL219/UA219, Chicago O'Hare (ORD) to Daniel K Inouye (HNL) - 3.9 mi away @ 31825 ft, heading WSW at 483 mph. Spotted 3x before! [12:39:54 PM CST] #A11BC8 #N17017 #B78X #UNITED #UAL219 #UA219 #autopilot #ADSB #ADSBbot