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

🇺🇸 N17312 - Boeing 737MAX 8 - United Airlines UAL1315/UA1315, Denver (DEN) to St Louis Lambert (STL) - 3.5 mi away @ 9500 ft, heading E at 332 mph. Spotted 2x before! [04:13:14 PM CDT] #A126E8 #N17312 #B38M #UNITED #UAL1315 #UA1315 #Landing #Arrival #ADSB #ADSBbot

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

🇺🇸 N17312 - Boeing 737MAX 8 - United Airlines UAL793/UA793, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 3.9 mi away @ 31075 ft, heading SW at 460 mph. Spotted once before! [04:55:43 PM CST] #A126E8 #N17312 #B38M #UNITED #UAL793 #UA793 #ADSB #ADSBbot

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

🇺🇸 N17312 - Boeing 737MAX 8 - United Airlines UAL623/UA623 (LGA-ORD-AUS) - 4.3 mi away @ 36250 ft, heading SW at 445 mph. Spotted for first time! [02:00:51 PM CST] #A126E8 #N17312 #B38M #UNITED #UAL623 #UA623 #ADSB #ADSBbot