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

🇺🇸 N774AN - Boeing 777 223ER - American Airlines AAL9608/AA9608, London Heathrow (LHR) to Dallas-Fort Worth (DFW) - 39.4 mi away @ 39550 ft, heading SW at 545 mph. Spotted 5x before! [01:45:22 PM CDT] #AA77F0 #N774AN #B772 #AMERICAN #AAL9608 #AA9608 #ADSB #ADSBbot