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

🇺🇸 N78017 - Boeing 777 224ER - United Airlines UAL47/UA47, Frankfurt am Main (FRA) to George Bush Intcntl/Houston (IAH) - 4.8 mi away @ 40700 ft, heading SSW at 532 mph. Spotted 9x before. [04:20:42 PM CDT] #AA9321 #N78017 #B772 #UNITED #UAL47 #UA47 #ADSB #ADSBbot

ICAO: AA9321
Owner: UNITED AIRLINES
Flt: UAL989 N78017 B772 IAD-FRA
Time: 2026-01-24 19:02:06 EST
Min Alt: 35000 ft
Min Dist: 1.8 nm (145° SE)
Squawk: 2104

dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa

ICAO: AA9321
Owner: UNITED AIRLINES
Flt: UAL23 N78017 B772 EWR-DUB
Time: 2026-01-15 21:00:39 EST
Min Alt: 29000 ft
Min Dist: 2.2 nm (108° ESE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa

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

🇺🇸 N78017 - Boeing 777 224ER - United Airlines UAL160/UA160, Munich (MUC) to George Bush Intcntl/Houston (IAH) - 4.5 mi away @ 38200 ft, heading SSW at 605 mph. Spotted 8x before! [02:36:32 PM CDT] #AA9321 #N78017 #B772 #UNITED #UAL160 #UA160 #ADSB #ADSBbot

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

🇺🇸 N78017 - Boeing 777 224ER - United Airlines UAL4/UA4, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 4.8 mi away @ 38475 ft, heading SSW at 566 mph. Spotted 7x before! [04:32:36 PM CDT] #AA9321 #N78017 #B772 #UNITED #UAL4 #UA4 #ADSB #ADSBbot