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

🇺🇸 N458WN - Boeing 737NG 7H4/W - Southwest Airlines SWA2913/WN2913 (SLC-PHX-DAL-SAT-MDW) - 4.3 mi away @ 38400 ft, heading NNE at 635 mph. Spotted 45x before! [03:42:55 PM CST] #A591D5 #N458WN #B737 #SOUTHWEST #SWA2913 #WN2913 #ADSB #ADSBbot