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

🇨🇦 C-FSDW - Boeing 737MAX 8 - Air Canada ACA975/AC975, Montréal-Pierre Elliott Trudeau (YUL) to Los Cabos (SJD) - 4.4 mi away @ 34375 ft, heading WSW at 478 mph. Spotted 2x before. [10:44:28 AM CST] #C02FED #C_FSDW #B38M #AIR_CANADA #ACA975 #AC975 #ADSB #ADSBbot