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🇺🇸 N27568 - Boeing 737MAX 9 - United Airlines UAL2139/UA2139, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 5.3 mi away @ 36225 ft, heading SW at 510 mph. Spotted 8x before. [08:22:27 PM CDT] #A2BC5A #N27568 #B39M #UNITED #UAL2139 #UA2139 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 16, 2026 at 1:22 AM
abovestlouis.com
🇺🇸 N37506 - Boeing 737MAX 9 - United Airlines UAL2139/UA2139, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 5.1 mi away @ 35950 ft, heading SW at 511 mph. Spotted 5x before. [07:39:44 PM CDT] #A448D5 #N37506 #B39M #UNITED #UAL2139 #UA2139 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 14, 2026 at 12:39 AM
abovestlouis.com
🇺🇸 N54570 - UNITED AIRLINES INC UAL2139/UA2139, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 3.8 mi away @ 30675 ft, heading SW at 546 mph. Spotted 2x before. [06:53:31 AM CDT] #A6EDE5 #N54570 #A21N #UAL2139 #UA2139 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
May 11, 2026 at 11:53 AM
abovestlouis.com
🇺🇸 N14520 - Airbus A321 271NXSL - United Airlines UAL2139/UA2139, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 4.0 mi away @ 34425 ft, heading SW at 508 mph. Spotted 3x before. [06:17:56 AM CDT] #A0B7FA #N14520 #A21N #UNITED #UAL2139 #UA2139 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
May 9, 2026 at 11:18 AM
abovestlouis.com
🇺🇸 N44550 - UNITED AIRLINES INC UAL2139/UA2139, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 4.2 mi away @ 34175 ft, heading SSW at 518 mph. Spotted 2x before. [06:09:32 AM CDT] #A56050 #N44550 #A21N #UAL2139 #UA2139 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
May 3, 2026 at 11:09 AM