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

🇺🇸 N76503 - Boeing 737NG 824/W - United Airlines UAL1256/UA1256, Charlotte/Douglas (CLT) to Denver (DEN) - 3.8 mi away @ 30675 ft, heading W at 448 mph. Spotted 14x before. [09:48:06 AM CST] #AA568F #N76503 #B738 #UNITED #UAL1256 #UA1256 #ADSB #ADSBbot

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

🇺🇸 N68836 - Boeing 737NG 924ER/W - United Airlines UAL1256/UA1256 (ORF-DEN-HDN) - 7.1 mi away @ 33925 ft, heading W at 478 mph. Spotted 6x before! [09:00:26 AM CDT] #A923CF #N68836 #B739 #UNITED #UAL1256 #UA1256 #ADSB #ADSBbot