ICAO: A56050
Owner: UNITEDAIRLINES
Flt: UAL558 N44550 A21N DEN-BOS
Time: 2026-03-31 13:11:29 EDT
Min Alt: 8875 ft
Min Dist: 1 nm (22deg NNE)

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ICAO: A56050
Owner: UNITEDAIRLINES
Flt: UAL597 N44550 A21N PHX-DEN-BOS
Time: 2026-03-29 19:39:55 EDT
Min Alt: 8925 ft
Min Dist: 1.5 nm (33deg NNE)

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ICAO: A56050
Owner: UNITEDAIRLINES
Flt: UAL331 N44550 A21N DEN-BOS
Time: 2026-03-04 15:05:51 EST
Min Alt: 8675 ft
Min Dist: 0.99 nm (27deg NNE)
Squawk: 1436
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ICAO: A56050
Owner: UNITEDAIRLINES
Flt: UAL597 N44550 A21N DEN-BOS
Time: 2026-02-14 19:11:53 EST
Min Alt: 9100 ft
Min Dist: 1 nm (28deg NNE)

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ICAO: A56050
Owner: UNITED AIRLINES
Flt: UAL422 N44550 A21N DEN-BOS
Time: 2025-12-25 22:42:44 EST
Min Alt: 9075 ft
Min Dist: 0.99 nm (22° NNE)
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Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N44550 - United Airlines UAL457/UA457 (JAX-ORD-AUS) - 4.1 mi away @ 34550 ft, heading SW at 504 mph. Spotted once before. [08:47:36 PM CST] #A56050 #N44550 #A21N #UNITED #UAL457 #UA457 #ADSB #ADSBbot

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

🇺🇸 N44550 - United Airlines UAL2426/UA2426 (MCO-ORD-IAH) - 3.6 mi away @ 30425 ft, heading SW at 407 mph. Spotted for first time! [11:59:49 PM CST] #A56050 #N44550 #UNITED #UAL2426 #UA2426 #ADSB #ADSBbot