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

🇺🇸 N980AN - Boeing 737NG 823/W - American Airlines AAL1839/AA1839, Ronald Reagan Washington Ntl (DCA) to Dallas-Fort Worth (DFW) - 4.3 mi away @ 36400 ft, heading W at 430 mph. Spotted 45x before! [12:51:49 PM CST] #ADAB31 #N980AN #B738 #AMERICAN #AAL1839 #AA1839 #ADSB #ADSBbot