ICAO: A44939
Owner: UNITEDAIRLINES
Flt: UAL1074 N37531 B39M BOS-SFO
Time: 2026-03-21 11:13:27 EDT
Min Alt: 3575 ft
Min Dist: 0.9 mi (-21deg NNW)

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ICAO: A44939
Owner: UNITEDAIRLINES
Flt: UAL1470 N37531 B39M MSY-IAH-BOS
Time: 2026-03-20 22:43:44 EDT
Min Alt: 8450 ft
Min Dist: 1.01 nm (27deg NNE)

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ICAO: A44939
Owner: UNITED AIRLINES
Flt: UAL1346 N37531 B39M IAH-BOS
Time: 2025-12-25 19:17:45 EST
Min Alt: 9400 ft
Min Dist: 1.1 nm (46° NE)
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ICAO: A44939
Owner: UNITED AIRLINES
Flt: UAL1372 N37531 B39M SFO-BOS
Time: 2025-12-18 22:00:01 EST
Min Alt: 8200 ft
Min Dist: 0.99 nm (23° NNE)
Squawk: 3706

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ICAO: A44939
Owner: UNITED AIRLINES
Flt: UAL1989 N37531 B39M ORD-BOS
Time: 2025-12-05 22:33:18 EST
Min Alt: 8375 ft
Min Dist: 1.01 nm (31° NNE)
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Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N37531 - Boeing 737MAX 9 - United Airlines UAL1689/UA1689 (MCO-IAD-LAX) - 18.7 mi away @ 33325 ft, heading W at 491 mph. Spotted 7x before! [01:29:34 PM CDT] #A44939 #N37531 #B39M #UNITED #UAL1689 #UA1689 #ADSB #ADSBbot