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

🇺🇸 N17589 - BOEING 737 MAX 9 - BANK OF UTAH TRUSTEE UAL1572/UA1572, San Francisco (SFO) to St Louis Lambert (STL) - 3.3 mi away @ 9075 ft, heading E at 374 mph. Spotted for first time! [04:39:34 AM CDT] #A12F52 #N17589 #B39M #UAL1572 #UA1572 #Landing #Arrival #ADSB #ADSBbot

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

🇺🇸 N77592 - BOEING 737 MAX 9 - UMB BANK NA TRUSTEE UAL1572/UA1572, San Francisco (SFO) to St Louis Lambert (STL) - 3.5 mi away @ 11150 ft, heading ESE at 350 mph. Spotted for first time! [04:44:48 AM CDT] #AA7F48 #N77592 #B39M #UAL1572 #UA1572 #Landing #Arrival #ADSB #ADSBbot

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

🇺🇸 N37562 - Boeing 737MAX 9 - United Airlines UAL1572/UA1572 (HNL-SFO-STL) - 3.4 mi away @ 7275 ft, heading SE at 318 mph. Spotted 6x before! [04:48:24 AM CDT] #A449A3 #N37562 #B39M #UNITED #UAL1572 #UA1572 #Landing #ADSB #ADSBbot