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

🇨🇦 C-GIUB - Airbus A321 211 - Air Canada ACA794/AC794, Los Angeles (LAX) to Toronto Pearson (YYZ) - 4.1 mi away @ 33900 ft, heading ENE at 598 mph. Spotted once before! [04:15:40 AM CST] #C05BD2 #C_GIUB #A321 #AIR_CANADA #ACA794 #AC794 #ADSB #ADSBbot