ICAO: A55FE9
Owner: UNITEDAIRLINES
Flt: UAL1356 N44522 A21N DEN-BOS
Time: 2026-03-26 23:19:30 EDT
Min Alt: 8400 ft
Min Dist: 1.02 nm (24deg NNE)
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ICAO: A55FE9
Owner: UNITEDAIRLINES
Flt: UAL647 N44522 A21N BOS-DEN
Time: 2026-02-15 07:35:26 EST
Min Alt: 12525 ft
Min Dist: 1.4 nm (65deg ENE)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A55FE9
Owner: UNITEDAIRLINES
Flt: UAL399 N44522 A21N ORD-BOS
Time: 2026-02-03 13:30:04 EST
Min Alt: 8450 ft
Min Dist: 1.1 nm (-6deg N)
dev adsb planefence by kx1t - sdr-e airplanes flightaware faa
ICAO: A55FE9
Owner: UNITED AIRLINES
Flt: UAL558 N44522 A21N DEN-BOS
Time: 2026-01-09 13:24:02 EST
Min Alt: 9725 ft
Min Dist: 1.2 nm (-21° NNW)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
Planefence ICAO: A55FE9
Flt: UAL662 UNITEDAIRLINES EWR - DFW
First seen: 2025-12-28 10:08:03 EST
Min Alt: 2300 ft MSL
Min Dist: 0.32 mi
adsb planefence by kx1t - adsbexchange - planefence
ICAO: A55FE9
Owner: UNITED AIRLINES
Flt: UAL422 N44522 A21N DEN-BOS
Time: 2025-12-27 22:44:46 EST
Min Alt: 8675 ft
Min Dist: 1.02 nm (22° NNE)
dev adsb planefence by kx1t -•sdr-e•airplanes•flightaware•faa
ICAO: A55FE9
Owner: UNITED AIRLINES
Flt: UAL2067 N44522 A21N ORD-BOS
Time: 2025-12-20 10:35:29 EST
Min Alt: 8675 ft
Min Dist: 1.1 nm (45° NE)
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.
🇺🇸 N44522 - Airbus A321 271NXSL - United Airlines UAL1715/UA1715, Denver (DEN) to Newark Liberty (EWR) - 4.3 mi away @ 36500 ft, heading E at 571 mph. Spotted 3x before! [10:19:40 PM CDT] #A55FE9 #N44522 #A21N #UNITED #UAL1715 #UA1715 #ADSB #ADSBbot
Planefence ICAO: A55FE9
Flt: UAL2297 UNITEDAIRLINES EWR - LAS
First seen: 2025-08-30 15:53:25 EDT
Min Alt: 2400 ft MSL
Min Dist: 0.18 mi
adsb planefence by kx1t - adsbexchange - planefence
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N44522 - Airbus A321 271NXSL - United Airlines UAL1314/UA1314 (ORD-IAH-MAF) - 4.4 mi away @ 35900 ft, heading SSW at 518 mph. Spotted 2x before! [03:24:48 PM CDT] #A55FE9 #N44522 #A21N #UNITED #UAL1314 #UA1314 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N44522 - Airbus A321 271NXSL - United Airlines UAL747/UA747 (SEA-ORD-IAH) - 4.4 mi away @ 36100 ft, heading SW at 432 mph. Spotted once before! [09:21:19 PM CST] #A55FE9 #N44522 #A21N #UNITED #UAL747 #UA747 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N44522 - Airbus A321 271NXSL - United Airlines UAL2417/UA2417, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 4.0 mi away @ 33725 ft, heading SW at 407 mph. Spotted for first time! [01:47:57 PM CST] #A55FE9 #N44522 #A21N #UNITED #UAL2417 #UA2417 #ADSB #ADSBbot
