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

🇨🇦 C-FGKN - Airbus A321 212 - Air Canada ACA788/AC788, Los Angeles (LAX) to Toronto Pearson (YYZ) - 3.7 mi away @ 31700 ft, heading ENE at 601 mph. Spotted 3x before. [06:31:26 PM CST] #C010EA #C_FGKN #A321 #AIR_CANADA #ACA788 #AC788 #ADSB #ADSBbot