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🇺🇸 N17363 - Boeing 737MAX 8 - United Airlines UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 5.1 mi away @ 41850 ft, heading SW at 489 mph. Spotted 2x before. [07:57:35 AM CDT] #A12798 #N17363 #B38M #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 26, 2026 at 12:57 PM
abovestlouis.com
🇺🇸 N21723 - Boeing 737NG 724/W - United Airlines UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 5.1 mi away @ 38000 ft, heading SW at 480 mph. Spotted 31x before. [07:54:47 AM CDT] #A1D63D #N21723 #B737 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 25, 2026 at 12:55 PM
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ICAO: #A12B78
Owner: #WILMINGTONTRUST
Flt: #UAL539 #N17479 #B39M
Time: 2026-09-21 08:47:59 CDT
Min Alt: 28000 ft
Min Dist: 134.42 nm (102deg ESE)

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September 21, 2026 at 1:54 PM
abovestlouis.com
🇺🇸 N823UA - Airbus A319 131 - United Airlines UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 4.3 mi away @ 34525 ft, heading SW at 477 mph. Spotted 24x before. [07:55:38 AM CST] #AB3DC3 #N823UA #A319 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
January 4, 2026 at 1:55 PM
abovestlouis.com
🇺🇸 N846UA - Airbus A319 131 - United Airlines UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 3.9 mi away @ 29950 ft, heading SW at 514 mph. Spotted 39x before. [08:05:28 AM CST] #AB97E6 #N846UA #A319 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
December 30, 2025 at 2:05 PM
abovestlouis.com
🇺🇸 N17443 - BOEING 737 MAX 9 - UMB BANK NA TRUSTEE UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 5.3 mi away @ 36150 ft, heading SW at 526 mph. Spotted 2x before. [08:20:44 AM CDT] #A12B09 #N17443 #B39M #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 18, 2026 at 1:20 PM
abovestlouis.com
🇺🇸 N17431 - BOEING 737 MAX 9 - United Airlines UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 7.5 mi away @ 36275 ft, heading SW at 530 mph. Spotted 4x before. [08:25:32 AM CDT] #A12AE4 #N17431 #B39M #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 16, 2026 at 1:26 PM
abovestlouis.com
🇺🇸 N47412 - BOEING 737-9 - United Airlines UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 4.9 mi away @ 36025 ft, heading SW at 510 mph. Spotted for first time! [08:08:02 AM CDT] #A5D28C #N47412 #B39M #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 14, 2026 at 1:08 PM
abovestlouis.com
🇺🇸 N37450 - BOEING 737-9 - UMB BANK NA TRUSTEE UAL539/UA539 (ORD-DFW-IAH) - 5.2 mi away @ 38400 ft, heading SW at 505 mph. Spotted once before. [08:05:53 AM CDT] #A445C7 #N37450 #B39M #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 9, 2026 at 1:06 PM
abovestlouis.com
🇺🇸 N17458 - BOEING 737 MAX 9 - UMB BANK NA TRUSTEE UAL539/UA539 (ORD-DFW-IAH) - 4.4 mi away @ 34150 ft, heading SW at 554 mph. Spotted 2x before. [08:11:50 AM CDT] #A12B31 #N17458 #B39M #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 8, 2026 at 1:12 PM
abovestlouis.com
🇺🇸 N77572 - Boeing 737MAX 9 - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 5.5 mi away @ 38225 ft, heading SW at 509 mph. Spotted 7x before. [08:41:21 AM CDT] #AA7F02 #N77572 #B39M #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 4, 2026 at 1:41 PM
abovestlouis.com
🇺🇸 N17448 - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 5.2 mi away @ 38225 ft, heading SW at 529 mph. Spotted once before. [08:07:59 AM CDT] #A12B0E #N17448 #B39M #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
September 1, 2026 at 1:08 PM
abovestlouis.com
🇺🇸 B737-M9 - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 4.8 mi away @ 38250 ft, heading SW at 521 mph. Spotted 4x before. [07:55:29 AM CDT] #A5D319 #B737_M9 #B39M #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 31, 2026 at 12:55 PM
abovestlouis.com
🇺🇸 N62894 - Boeing 737NG 924ER/W - United Airlines UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 4.9 mi away @ 39650 ft, heading SW at 522 mph. Spotted 14x before. [08:15:23 AM CDT] #A837A5 #N62894 #B739 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 22, 2026 at 1:15 PM
abovestlouis.com
🇺🇸 N77598 - BOEING 737 MAX 9 - UMB BANK NA TRUSTEE UAL539/UA539 (ORD-DFW-IAH) - 5.0 mi away @ 40100 ft, heading SW at 494 mph. Spotted 8x before. [08:10:30 AM CDT] #AA7F4E #N77598 #B39M #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 18, 2026 at 1:10 PM
abovestlouis.com
🇺🇸 N47457 - UNITED AIRLINES INC UAL539/UA539 (ORD-DFW-IAH) - 4.6 mi away @ 36050 ft, heading SW at 512 mph. Spotted once before. [07:57:51 AM CDT] #A5D31D #N47457 #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 17, 2026 at 12:58 PM
abovestlouis.com
🇺🇸 N37538 - Boeing 737MAX 9 - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 4.4 mi away @ 32150 ft, heading SW at 531 mph. Spotted 8x before. [08:19:49 AM CDT] #A44940 #N37538 #B39M #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 12, 2026 at 1:19 PM
abovestlouis.com
🇺🇸 N37563 - Boeing 737MAX 9 - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 4.8 mi away @ 38000 ft, heading SW at 506 mph. Spotted 9x before. [07:55:54 AM CDT] #A449A4 #N37563 #B39M #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 11, 2026 at 12:56 PM
abovestlouis.com
🇺🇸 N33266 - Boeing 737NG 824/W - United Airlines UAL539/UA539, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 5.0 mi away @ 40050 ft, heading SW at 490 mph. Spotted 17x before. [08:18:43 AM CDT] #A3A086 #N33266 #B738 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 8, 2026 at 1:18 PM
abovestlouis.com
🇺🇸 N26232 - Boeing 737NG 824/W - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 5.0 mi away @ 39675 ft, heading SW at 530 mph. Spotted 20x before. [08:04:37 AM CDT] #A28947 #N26232 #B738 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
August 2, 2026 at 1:04 PM
abovestlouis.com
🇺🇸 N76519 - Boeing 737NG 824/W - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 6.8 mi away @ 40400 ft, heading SW at 540 mph. Spotted 23x before. [08:21:49 AM CDT] #AA56B8 #N76519 #B738 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 30, 2026 at 1:21 PM
abovestlouis.com
🇺🇸 N76529 - Boeing 737NG 824/W - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 4.9 mi away @ 40400 ft, heading SW at 501 mph. Spotted 21x before. [08:20:41 AM CDT] #AA56DB #N76529 #B738 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 24, 2026 at 1:20 PM
abovestlouis.com
🇺🇸 N24211 - Boeing 737NG 824/W - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 5.2 mi away @ 40375 ft, heading SW at 524 mph. Spotted 15x before. [08:20:54 AM CDT] #A23A02 #N24211 #B738 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 23, 2026 at 1:21 PM
abovestlouis.com
🇺🇸 N78501 - Boeing 737NG 824/W - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 4.8 mi away @ 40225 ft, heading SW at 519 mph. Spotted 36x before. [08:13:22 AM CDT] #AAA58B #N78501 #B738 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 22, 2026 at 1:13 PM
abovestlouis.com
🇺🇸 N14231 - Boeing 737NG 824/W - United Airlines UAL539/UA539 (ORD-DFW-IAH) - 4.5 mi away @ 38275 ft, heading SW at 537 mph. Spotted 22x before. [08:15:07 AM CDT] #A0ACF9 #N14231 #B738 #UNITED #UAL539 #UA539 #ADSB #ADSBbot
Map of the St. Louis area showing the position and track of the aircraft described in the post.
July 20, 2026 at 1:15 PM