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

🇺🇸 N804NN - Boeing 737NG 823/W - American Airlines AAL2142/AA2142, Dallas-Fort Worth (DFW) to Laguardia (LGA) - 5.0 mi away @ 38800 ft, heading NE at 583 mph. Spotted 38x before! [06:40:41 PM CDT] #AAF1F2 #N804NN #B738 #AMERICAN #AAL2142 #AA2142 #ADSB #ADSBbot