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

🇨🇦 C-FNND - Boeing 777 233LR - Air Canada ACA1288/AC1288, Phoenix Sky Harbor (PHX) to Toronto Pearson (YYZ) - 4.1 mi away @ 36675 ft, heading ENE at 655 mph. Spotted for first time! [07:22:27 PM CST] #C023AA #C_FNND #B77L #AIR_CANADA #ACA1288 #AC1288 #ADSB #ADSBbot