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

🇬🇧 G-ZBLE - Boeing 787 10 - British Airways BAW26E/BA26E, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 5.0 mi away @ 42125 ft, heading SSW at 509 mph. Spotted once before! [11:45:54 AM CDT] #40797C #G_ZBLE #B78X #SPEEDBIRD #BAW26E #BA26E #autopilot #ADSB #ADSBbot