Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8687A - Boeing 737NG 8H4/W - Southwest Airlines SWA3044/WN3044, Washington Dulles (IAD) to Phoenix Sky Harbor (PHX) - 7.9 mi away @ 39750 ft, heading W at 502 mph. Spotted 84x before! [05:10:09 PM CDT] #ABEFDD #N8687A #B738 #SOUTHWEST #SWA3044 #WN3044 #ADSB #ADSBbot