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

🇺🇸 N17279 - Boeing 737MAX 8 - United Airlines UAL427/UA427, San Diego (SAN) to Newark Liberty (EWR) - 3.8 mi away @ 29500 ft, heading ENE at 603 mph. Spotted 14x before. [07:11:06 PM CST] #A1240A #N17279 #B38M #UNITED #UAL427 #UA427 #ADSB #ADSBbot

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

🇺🇸 N17279 - Boeing 737MAX 8 - United Airlines UAL2006/UA2006, Chicago O'Hare (ORD) to La Aurora (GUA) - 3.6 mi away @ 25400 ft, heading SSW at 480 mph. Spotted 13x before! [10:12:45 AM CST] #A1240A #N17279 #B38M #UNITED #UAL2006 #UA2006 #ADSB #ADSBbot