ICAO: AA7F24
Owner: UNITEDAIRLINES
Flt: UAL2136 N77581 B39M BOS-IAD
Time: 2026-03-01 19:41:56 EST
Min Alt: 4950 ft
Min Dist: 1.4 nm (94deg E)

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ICAO: AA7F24
Owner: UNITEDAIRLINES
Flt: UAL2136 N77581 B39M BOS-IAD
Time: 2026-03-01 19:41:30 EST
Min Alt: 3900 ft
Min Dist: 0.04 mi (162deg SSE)

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ICAO: AA7F24
Owner: UNITEDAIRLINES
Flt: UAL1507 N77581 B39M IAH-BOS
Time: 2026-03-01 17:59:42 EST
Min Alt: 9000 ft
Min Dist: 0.99 nm (20deg NNE)

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ICAO: AA7F24
Owner: UNITEDAIRLINES
Flt: UAL1478 N77581 B39M YEG-IAH-BOS
Time: 2026-02-16 21:00:54 EST
Min Alt: 9175 ft
Min Dist: 1.1 nm (47deg NE)

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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL1349 N77581 B39M BOS-ORD
Time: 2026-01-12 09:47:28 EST
Min Alt: 12275 ft
Min Dist: 1.2 nm (79° E)
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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL1989 N77581 B39M PHX-ORD-BOS
Time: 2026-01-11 21:09:51 EST
Min Alt: 9475 ft
Min Dist: 1.02 nm (21° NNE)
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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL1372 N77581 B39M SFO-BOS
Time: 2026-01-02 22:36:18 EST
Min Alt: 9650 ft
Min Dist: 1.01 nm (22° NNE)
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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL1623 N77581 B39M CLE-IAD (?)
Time: 2025-12-28 00:26:43 EST
Min Alt: 9550 ft
Min Dist: 1 nm (27° NNE)
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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL1665 N77581 B39M SFO-BOS
Time: 2025-12-27 08:31:02 EST
Min Alt: 9750 ft
Min Dist: 1.1 nm (8° N)
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Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N77581 - Boeing 737MAX 9 - United Airlines UAL1672/UA1672, Cancun (CUN) to Chicago O'Hare (ORD) - 4.1 mi away @ 34275 ft, heading N at 472 mph. Spotted 2x before. [09:57:27 AM CST] #AA7F24 #N77581 #B39M #UNITED #UAL1672 #UA1672 #ADSB #ADSBbot

ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL226 N77581 B39M BOS-IAH
Time: 2025-12-08 07:29:38 EST
Min Alt: 8975 ft
Min Dist: 4.3 nm (164° SSE)
Loudness: -1 dB
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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL1076 N77581 B39M IAH-BOS
Time: 2025-12-07 23:14:03 EST
Min Alt: 8250 ft
Min Dist: 0.98 nm (17° NNE)
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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL716 N77581 B39M DEN-BOS
Time: 2025-11-25 21:12:20 EST
Min Alt: 8225 ft
Min Dist: 0.99 nm (24° NNE)
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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL2067 N77581 B39M ORD-BOS
Time: 2025-11-25 10:31:04 EST
Min Alt: 7975 ft
Min Dist: 0.99 nm (25° NNE)
Loudness: 0 dB
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ICAO: AA7F24
Owner: UNITED AIRLINES
Flt: UAL1665 N77581 B39M MSY-SFO-BOS
Time: 2025-10-17 07:47:35 EDT
Min Alt: 9775 ft
Min Dist: 1.01 km (30° NNE)
Squawk: 3221
Loudness: -2 dB
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Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N77581 - Boeing 737MAX 9 - United Airlines UAL2483/UA2483 (ROC-ORD-IAH) - 4.8 mi away @ 34025 ft, heading SW at 561 mph. Spotted once before! [11:40:30 AM CDT] #AA7F24 #N77581 #B39M #UNITED #UAL2483 #UA2483 #ADSB #ADSBbot

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

🇺🇸 N77581 - Boeing 737MAX 9 - United Airlines UAL2189/UA2189, Southwest Florida (RSW) to Chicago O'Hare (ORD) - 4.0 mi away @ 32275 ft, heading N at 537 mph. Spotted for first time! [08:34:51 AM CDT] #AA7F24 #N77581 #B39M #UNITED #UAL2189 #UA2189 #ADSB #ADSBbot