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

🇨🇦 C-GHPU - Boeing 787 8 - Air Canada ACA785/AC785, Toronto Pearson (YYZ) to Los Angeles (LAX) - 4.8 mi away @ 42400 ft, heading WSW at 558 mph. Spotted 2x before! [09:15:14 AM CDT] #C058BF #C_GHPU #B788 #AIR_CANADA #ACA785 #AC785 #autopilot #ADSB #ADSBbot