A United Airlines Boeing 737-800 taxis along the airfield at Phoenix Sky Harbor International Airport, captured in sharp side profile under bright daylight. The aircraft’s white fuselage and blue-and-gold tail are clearly visible, with engines spooling at low power and landing gear fully extended. Behind the aircraft, Terminal 3 infrastructure, elevated roadways, airport signage, and a Sky Train guideway frame the scene, emphasizing the dense, urban airport environment.

United Airlines
UA1873 PHX-IAD
Boeing 737-800
Reg. N87507
Phoenix Sky Harbor International Airport, KPHX
October 2, 2025

#unitedairlines #united #N87507 #aviationphotography #planespotting #boeing #boeing737 #boeing737800 #B737 #KPHX #phoenix #fujifilm

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

🇺🇸 N87507 - Boeing 737NG 824/W - United Airlines UAL349/UA349, Cozumel (CZM) to Chicago O'Hare (ORD) - 4.3 mi away @ 36925 ft, heading NNE at 532 mph. Spotted 18x before. [04:29:51 PM CST] #AC0B61 #N87507 #B738 #UNITED #UAL349 #UA349 #ADSB #ADSBbot

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

🇺🇸 N87507 - Boeing 737NG 824/W - United Airlines UAL1873/UA1873, Phoenix Sky Harbor (PHX) to Washington Dulles (IAD) - 4.5 mi away @ 38775 ft, heading E at 526 mph. Spotted 17x before! [01:10:56 PM CDT] #AC0B61 #N87507 #B738 #UNITED #UAL1873 #UA1873 #ADSB #ADSBbot

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

🇺🇸 N87507 - Boeing 737NG 824/W - United Airlines UAL729/UA729 (CLE-ORD-DFW) - 5.5 mi away @ 39750 ft, heading SW at 537 mph. Spotted 16x before! [08:28:24 AM CDT] #AC0B61 #N87507 #B738 #UNITED #UAL729 #UA729 #ADSB #ADSBbot

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

🇺🇸 N87507 - Boeing 737NG 824/W - United Airlines UAL1603/UA1603 (STL-SFO-SEA) - 3.9 mi away @ 14300 ft, heading WNW at 447 mph. Spotted 15x before! [06:16:28 PM CDT] #AC0B61 #N87507 #B738 #UNITED #UAL1603 #UA1603 #TakingOff #ADSB #ADSBbot

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

🇺🇸 N87507 - Boeing 737NG 824/W - United Airlines UAL1500/UA1500, Baltimore/Washington Thurgood Marshall (BWI) to San Francisco (SFO) - 5.1 mi away @ 42225 ft, heading W at 505 mph. Spotted 14x before! [07:24:23 AM CDT] #AC0B61 #N87507 #B738 #UNITED #UAL1500 #UA1500 #ADSB #ADSBbot

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

🇺🇸 N87507 - Boeing 737NG 824/W - United Airlines UAL1603/UA1603, San Francisco (SFO) to Indianapolis (IND) - 4.9 mi away @ 41350 ft, heading E at 542 mph. Spotted 13x before! [03:14:45 AM CDT] #AC0B61 #N87507 #B738 #UNITED #UAL1603 #UA1603 #ADSB #ADSBbot

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

🇺🇸 N87507 - Boeing 737NG 824/W - United Airlines UAL1346/UA1346 (IAH-IAD-BDL) - 4.6 mi away @ 37900 ft, heading NE at 614 mph. Spotted 12x before! [10:23:26 AM CDT] #AC0B61 #N87507 #B738 #UNITED #UAL1346 #UA1346 #ADSB #ADSBbot

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

🇺🇸 N87507 - Boeing 737NG 824/W - United Airlines UAL729/UA729, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 4.3 mi away @ 35450 ft, heading SW at 385 mph. Spotted 11x before! [08:49:42 AM CST] #AC0B61 #N87507 #B738 #UNITED #UAL729 #UA729 #ADSB #ADSBbot