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

🇨🇦 C-FNWD - Boeing 737MAX 8 - WestJet WJA1631/WS1631, Fort Lauderdale/Hollywood (FLL) to Calgary (YYC) - 3.9 mi away @ 33450 ft, heading NNW at 477 mph. Spotted 4x before. [05:37:40 PM CST] #C02494 #C_FNWD #B38M #WESTJET #WJA1631 #WS1631 #ADSB #ADSBbot