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

🇬🇧 G-ZBJE - Boeing 787 8 - British Airways BAW97A/BA97A, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 4.7 mi away @ 39775 ft, heading SSW at 514 mph. Spotted once before! [06:00:50 PM CST] #406A9C #G_ZBJE #B788 #SPEEDBIRD #BAW97A #BA97A #autopilot #ADSB #ADSBbot