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

🇺🇸 N219WN - Boeing 737NG 7H4/W - Southwest Airlines SWA8917/WN8917 - 5.3 mi away @ 42100 ft, heading SW at 478 mph. Spotted 67x before! [08:03:02 PM CDT] #A1DCF2 #N219WN #B737 #SOUTHWEST #SWA8917 #WN8917 #ADSB #ADSBbot