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

🇬🇧 G-YMMI - Boeing 777 236ER - British Airways BAW91C/BA91C, London Heathrow (LHR) to Austin-Bergstrom (AUS) - 4.8 mi away @ 40025 ft, heading SSW at 535 mph. Spotted 3x before! [02:32:09 PM CDT] #4007F4 #G_YMMI #B772 #SPEEDBIRD #BAW91C #BA91C #ADSB #ADSBbot

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

🇬🇧 G-YMMI - Boeing 777 236ER - British Airways BAW91C/BA91C, London Heathrow (LHR) to Austin-Bergstrom (AUS) - 4.8 mi away @ 41150 ft, heading SSW at 549 mph. Spotted 2x before! [01:47:02 PM CDT] #4007F4 #G_YMMI #B772 #SPEEDBIRD #BAW91C #BA91C #ADSB #ADSBbot