ICAO: AA4440
Owner: UNITED AIRLINES
Flt: UAL915 N76021 B772 IAD-CDG
Time: 2026-01-04 19:07:51 EST
Min Alt: 35000 ft
Min Dist: 4.8 nm (130° SE)
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ICAO: AA4440
Owner: UNITED AIRLINES
Flt: UAL23 N76021 B772 EWR-DUB
Time: 2025-11-28 20:49:14 EST
Min Alt: 33000 ft
Min Dist: 9.4 nm (-59° WNW)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
ICAO: AA4440
Owner: UNITED AIRLINES
Flt: UAL19 N76021 B772 EWR-MXP
Time: 2025-11-25 18:16:56 EST
Min Alt: 37025 ft
Min Dist: 6.57 nm (137° SE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
Planefence ICAO: AA4440
Flt: UAL121 UNITEDAIRLINES BCN - EWR
First seen: 2025-09-06 15:02:59 EDT
Min Alt: 5000 ft MSL
Min Dist: 1.7 nm
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Planefence ICAO: AA4440
Flt: UAL121 UNITEDAIRLINES BCN - EWR
First seen: 2025-09-06 15:03:13 EDT
Min Alt: 5000 ft MSL
Min Dist: 1.11 mi
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N76021 - Boeing 777 224ER - United Airlines UAL4/UA4, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 4.6 mi away @ 37825 ft, heading SSW at 607 mph. Spotted 14x before! [04:21:14 PM CDT] #AA4440 #N76021 #B772 #UNITED #UAL4 #UA4 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N76021 - Boeing 777 224ER - United Airlines UAL4/UA4, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 5.0 mi away @ 40400 ft, heading SSW at 551 mph. Spotted 13x before! [04:36:42 PM CDT] #AA4440 #N76021 #B772 #UNITED #UAL4 #UA4 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N76021 - Boeing 777 224ER - United Airlines UAL879/UA879, London Heathrow (LHR) to George Bush Intcntl/Houston (IAH) - 5.0 mi away @ 42250 ft, heading SSW at 594 mph. Spotted 12x before! [12:23:59 PM CDT] #AA4440 #N76021 #B772 #UNITED #UAL879 #UA879 #ADSB #ADSBbot