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

🇳🇱 PH-BHI - Boeing 787 9 - KLM Royal Dutch Airlines KLM685/KL685, Amsterdam Schiphol (AMS) to Licenciado Benito Juarez (MEX) - 4.5 mi away @ 37700 ft, heading SSW at 514 mph. Spotted for first time! [03:52:47 PM CST] #485343 #PH_BHI #B789 #KLM #KLM685 #KL685 #autopilot #ADSB #ADSBbot