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

🇬🇧 G-YMMU - Boeing 777 236ER - British Airways BAW19W/BA19W, Austin-Bergstrom (AUS) to London Heathrow (LHR) - 4.4 mi away @ 37325 ft, heading NE at 566 mph. Spotted once before! [07:34:27 PM CDT] #405BFE #G_YMMU #B772 #SPEEDBIRD #BAW19W #BA19W #ADSB #ADSBbot