ICAO: AA7E9A
Owner: UNITEDAIRLINES
Flt: UAL1989 N77543 B39M ORD-BOS
Time: 2026-02-14 21:30:46 EST
Min Alt: 9875 ft
Min Dist: 1.1 nm (-13deg NNW)
Squawk: 4140
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.

🇺🇸 N77543 - Boeing 737MAX 9 - United Airlines UAL795/UA795, Raleigh-Durham (RDU) to San Francisco (SFO) - 3.9 mi away @ 33100 ft, heading WNW at 480 mph. Spotted 9x before. [09:22:27 AM CST] #AA7E9A #N77543 #B39M #UNITED #UAL795 #UA795 #ADSB #ADSBbot

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

🇺🇸 N77543 - Boeing 737MAX 9 - United Airlines UAL1879/UA1879, Chicago O'Hare (ORD) to Los Cabos (SJD) - 4.2 mi away @ 34400 ft, heading SSW at 470 mph. Spotted 8x before. [10:36:55 AM CST] #AA7E9A #N77543 #B39M #UNITED #UAL1879 #UA1879 #ADSB #ADSBbot

ICAO: AA7E9A
Owner: UNITED AIRLINES
Flt: UAL1076 N77543 B39M IAH-BOS
Time: 2025-12-03 22:32:08 EST
Min Alt: 8125 ft
Min Dist: 0.99 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.

🇺🇸 N77543 - Boeing 737MAX 9 - United Airlines UAL2132/UA2132 (TUS-DEN-SMF-EWR) - 4.8 mi away @ 39300 ft, heading ENE at 594 mph. Spotted 7x before! [05:19:53 AM CDT] #AA7E9A #N77543 #B39M #UNITED #UAL2132 #UA2132 #ADSB #ADSBbot

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

🇺🇸 N77543 - Boeing 737MAX 9 - United Airlines UAL1667/UA1667, Cancun (CUN) to Chicago O'Hare (ORD) - 4.5 mi away @ 36850 ft, heading NE at 516 mph. Spotted 6x before! [06:12:28 PM CDT] #AA7E9A #N77543 #B39M #UNITED #UAL1667 #UA1667 #ADSB #ADSBbot