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

🇨🇦 C-GEKH - Boeing 737MAX 8 - Air Canada ACA1068/AC1068, Vancouver (YVR) to Raleigh-Durham (RDU) - 4.8 mi away @ 39400 ft, heading E at 542 mph. Spotted 4x before! [07:10:50 PM CDT] #C05044 #C_GEKH #B38M #AIR_CANADA #ACA1068 #AC1068 #ADSB #ADSBbot