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

🇺🇸 N77518 - Boeing 737NG 824/W - United Airlines UAL1259/UA1259 (ATL-SFO-LAS) - 3.9 mi away @ 32700 ft, heading WNW at 455 mph. Spotted 13x before. [07:25:33 AM CST] #AA7E36 #N77518 #B738 #UNITED #UAL1259 #UA1259 #ADSB #ADSBbot

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

🇺🇸 N24211 - Boeing 737NG 824/W - United Airlines UAL1259/UA1259 (BWI-SFO-SAN) - 4.6 mi away @ 38000 ft, heading W at 519 mph. Spotted 11x before! [07:23:53 AM CDT] #A23A02 #N24211 #B738 #UNITED #UAL1259 #UA1259 #ADSB #ADSBbot