ICAO: A12A7F
Owner: UNITEDAIRLINES
Flt: UAL1232 N17405 B39M SLC-DEN-BOS
Time: 2026-03-15 15:20:17 EDT
Min Alt: 8875 ft
Min Dist: 0.99 nm (19deg NNE)
Squawk: 3466
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ICAO: A12A7F
Owner: UNITEDAIRLINES
Flt: UAL1478 N17405 B39M YEG-IAH-BOS
Time: 2026-02-21 20:58:44 EST
Min Alt: 9300 ft
Min Dist: 1.1 nm (47deg NE)
Squawk: 7242
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Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N17405 - BOEING 737 MAX 9 - United Airlines UAL1879/UA1879, Chicago O'Hare (ORD) to Los Cabos (SJD) - 4.0 mi away @ 31475 ft, heading SW at 428 mph. Spotted once before. [10:18:31 AM CST] #A12A7F #N17405 #B39M #UNITED #UAL1879 #UA1879 #ADSB #ADSBbot

ICAO: A12A7F
Owner: UNITED AIRLINES
Flt: UAL1732 N17405 B39M #
Time: 2026-01-19 13:21:09 EST
Min Alt: 4100 ft
Min Dist: 0.6 mi (-10° N)
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ICAO: A12A7F
Owner: UNITED AIRLINES
Flt: UAL2067 N17405 B39M ORD-BOS
Time: 2026-01-19 10:34:29 EST
Min Alt: 9050 ft
Min Dist: 1.01 nm (28° NNE)
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Map of the St. Louis area showing the position and track of the aircraft described in the post.

🇺🇸 N17405 - BOEING 737 MAX 9 - UMB BANK NA TRUSTEE UAL1645/UA1645, Cleveland-Hopkins (CLE) to George Bush Intcntl/Houston (IAH) - 5.0 mi away @ 35525 ft, heading SW at 521 mph. Spotted for first time! [03:33:18 PM CDT] #A12A7F #N17405 #B39M #UAL1645 #UA1645 #ADSB #ADSBbot