Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N8503A - Boeing 737NG 800/W - Southwest Airlines SWA1590/WN1590, Phoenix Sky Harbor (PHX) to Washington Dulles (IAD) - 7.9 mi away @ 38000 ft, heading E at 609 mph. Spotted 97x before. [04:55:46 PM CST] #ABAA1A #N8503A #B738 #SOUTHWEST #SWA1590 #WN1590 #ADSB #ADSBbot