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

🇺🇸 N13138 - Boeing 757 224/W - United Airlines UAL1343/UA1343, Newark Liberty (EWR) to San Francisco (SFO) - 4.0 mi away @ 31575 ft, heading WSW at 523 mph. Spotted 6x before! [12:28:53 PM CDT] #A081CA #N13138 #B752 #UNITED #UAL1343 #UA1343 #ADSB #ADSBbot

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

🇺🇸 N12116 - Boeing 757 224/W - United Airlines UAL1343/UA1343, Newark Liberty (EWR) to San Francisco (SFO) - 4.5 mi away @ 37875 ft, heading W at 504 mph. Spotted 2x before! [12:34:31 PM CDT] #A05A03 #N12116 #B752 #UNITED #UAL1343 #UA1343 #ADSB #ADSBbot