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@abovestlouis.com Sep 26, 2026, 5:20 PM

🇺🇸 N797UA - Boeing 777 222ER - United Airlines UAL879/UA879, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 4.9 mi away @ 37800 ft, heading SSW at 558 mph. Spotted 9x before. [12:20:41 PM CDT] #AAD3C9 #N797UA #B772 #UNITED #UAL879 #UA879 #ADSB #ADSBbot

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

@abovestlouis.com Sep 25, 2026, 5:36 PM

🇺🇸 N797UA - Boeing 777 222ER - United Airlines UAL879/UA879, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 5.4 mi away @ 40100 ft, heading SSW at 570 mph. Spotted 8x before. [12:36:40 PM CDT] #AAD3C9 #N797UA #B772 #UNITED #UAL879 #UA879 #ADSB #ADSBbot

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