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

🇺🇸 N427WN - Boeing 737NG 7H4/W - Southwest Airlines SWA359/WN359, Denver (DEN) to Laguardia (LGA) - 4.4 mi away @ 38950 ft, heading E at 554 mph. Spotted 48x before! [08:58:18 AM CDT] #A517A1 #N427WN #B737 #SOUTHWEST #SWA359 #WN359 #ADSB #ADSBbot