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

🇨🇦 C-GEJN - Boeing 737MAX 8 - Air Canada ACA776/AC776, Los Angeles (LAX) to Montréal-Pierre Elliott Trudeau (YUL) - 4.4 mi away @ 38125 ft, heading ENE at 575 mph. Spotted 10x before. [01:38:26 PM CDT] #C05030 #C_GEJN #B38M #AIR_CANADA #ACA776 #AC776 #ADSB #ADSBbot