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

🇬🇧 G-YMMT - Boeing 777 236ER - British Airways BAW91C/BA91C, London Heathrow (LHR) to Austin-Bergstrom (AUS) - 5.1 mi away @ 39950 ft, heading SW at 538 mph. Spotted 3x before! [02:20:11 PM CDT] #405BFD #G_YMMT #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-YMMT - Boeing 777 236ER - British Airways BAW97A/BA97A, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 4.7 mi away @ 38475 ft, heading SSW at 552 mph. Spotted 2x before! [06:50:17 PM CDT] #405BFD #G_YMMT #B772 #SPEEDBIRD #BAW97A #BA97A #ADSB #ADSBbot