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

🇨🇦 C-FZWS - Boeing 737MAX 8 - WestJet WJA1272/WS1272, Calgary (YYC) to Orlando (MCO) - 4.5 mi away @ 37700 ft, heading SE at 578 mph. Spotted 6x before! [02:19:33 PM CDT] #C04453 #C_FZWS #B38M #WESTJET #WJA1272 #WS1272 #ADSB #ADSBbot

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

🇨🇦 C-FZWS - Boeing 737MAX 8 - WestJet WJA1272/WS1272, Calgary (YYC) to Orlando (MCO) - 5.0 mi away @ 37275 ft, heading SE at 572 mph. Spotted 5x before! [02:33:14 PM CDT] #C04453 #C_FZWS #B38M #WESTJET #WJA1272 #WS1272 #ADSB #ADSBbot