Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N228UA - Boeing 777 222ER - United Airlines UAL47/UA47, Frankfurt am Main (FRA) to George Bush Intcntl/Houston (IAH) - 4.6 mi away @ 38225 ft, heading SSW at 527 mph. Spotted 8x before. [04:54:42 PM CST] #A2007C #N228UA #B772 #UNITED #UAL47 #UA47 #ADSB #ADSBbot