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

🇨🇦 C-FBWJ - Boeing 737NG 7CT/W - WestJet WJA1427/WS1427, Nashville (BNA) to Calgary (YYC) - 4.6 mi away @ 39075 ft, heading NW at 476 mph. Spotted for first time! [05:53:36 PM CDT] #C004EA #C_FBWJ #B737 #WESTJET #WJA1427 #WS1427 #ADSB #ADSBbot