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

🇺🇸 N404AN - Airbus A321 253NXSL - American Airlines AAL437/AA437, Harry Reid (LAS) to Philadelphia (PHL) - 4.6 mi away @ 36750 ft, heading E at 562 mph. Spotted 7x before! [04:15:38 AM CDT] #A4BB8A #N404AN #A21N #AMERICAN #AAL437 #AA437 #ADSB #ADSBbot