ICAO: A448D3
Owner: UNITEDAIRLINES
Flt: UAL1458 N37504 B39M BOS-SFO
Time: 2026-03-28 08:13:44 EDT
Min Alt: 11400 ft
Min Dist: 1.7 nm (127deg SE)
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ICAO: A448D3
Owner: UNITEDAIRLINES
Flt: UAL1702 N37504 B39M BZN-SFO-BOS
Time: 2026-03-28 01:50:59 EDT
Min Alt: 9025 ft
Min Dist: 1.2 nm (23deg NNE)
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ICAO: A448D3
Owner: UNITEDAIRLINES
Flt: UAL503 N37504 B39M BOS-ORD
Time: 2026-03-18 11:21:14 EDT
Min Alt: 13150 ft
Min Dist: 1.2 nm (85deg E)
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N37504 - Boeing 737MAX 9 - United Airlines UAL1655/UA1655 (YYC-ORD-SAT) - 3.9 mi away @ 34225 ft, heading SW at 511 mph. Spotted 4x before. [09:33:53 PM CST] #A448D3 #N37504 #B39M #UNITED #UAL1655 #UA1655 #ADSB #ADSBbot
Planefence ICAO: A448D3
Flt: UAL1008 UNITEDAIRLINES BOS - SFO
First seen: 2025-12-24 08:30:05 EST
Min Alt: 4150 ft MSL
Min Dist: 0.73 nm
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ICAO: A448D3
Owner: UNITED AIRLINES
Flt: UAL1623 N37504 B39M SFO-BOS
Time: 2025-12-23 23:45:02 EST
Min Alt: 8000 ft
Min Dist: 0.99 nm (25° NNE)
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ICAO: A448D3
Owner: UNITED AIRLINES
Flt: UAL2067 N37504 # ORD-BOS
Time: 2025-12-18 10:56:22 EST
Min Alt: 7625 ft
Min Dist: 1 nm (23° NNE)
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.
🇺🇸 N37504 - Boeing 737MAX 9 - United Airlines UAL2294/UA2294, Washington Dulles (IAD) to Los Angeles (LAX) - 3.8 mi away @ 32075 ft, heading WSW at 446 mph. Spotted 3x before! [08:56:19 PM CST] #A448D3 #N37504 #B39M #UNITED #UAL2294 #UA2294 #ADSB #ADSBbot
Planefence ICAO: A448D3
Flt: UAL311 UNITEDAIRLINES BOS - LAX
First seen: 2025-08-02 07:59:17 EDT
Min Alt: 2800 ft MSL
Min Dist: 0.54 nm
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Planefence ICAO: A448D3
Flt: UAL311 UNITEDAIRLINES BOS - LAX
First seen: 2025-08-02 07:58:44 EDT
Min Alt: 1700 ft MSL
Min Dist: 0.06 mi
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Planefence ICAO: A448D3
Flt: UAL1976 UNITEDAIRLINES BOS - IAH
First seen: 2025-06-01 14:13:52 EDT
Min Alt: 3775 ft MSL
Min Dist: 0.21 nm
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Planefence ICAO: A448D3
Flt: UAL1976 UNITEDAIRLINES BOS - IAH
First seen: 2025-06-01 14:13:15 EDT
Min Alt: 2575 ft MSL
Min Dist: 0.15 mi
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Planefence ICAO: A448D3
Flt: UAL2474 UNITEDAIRLINES SFO - BOS
First seen: 2025-05-31 17:58:03 EDT
Min Alt: 3825 ft MSL
Min Dist: 0.11 mi
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Planefence ICAO: A448D3
Flt: UAL311 UNITEDAIRLINES BOS - LAX
First seen: 2025-04-20 09:55:02 EDT
Min Alt: 2425 ft MSL
Min Dist: 0.31 mi
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Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N37504 - Boeing 737MAX 9 - United Airlines UAL1664/UA1664, Punta Cana (PUJ) to Chicago O'Hare (ORD) - 4.2 mi away @ 32300 ft, heading NNW at 477 mph. Spotted 2x before! [05:44:46 PM CDT] #A448D3 #N37504 #B39M #UNITED #UAL1664 #UA1664 #ADSB #ADSBbot
