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

🇺🇸 N27404 - BOEING 737 MAX 9 - BANK OF UTAH TRUSTEE UAL1945/UA1945 (ORD-IAH-LAX) - 4.2 mi away @ 35350 ft, heading SW at 439 mph. Spotted 2x before! [09:36:31 AM CDT] #A2B7CD #N27404 #B39M #UAL1945 #UA1945 #ADSB #ADSBbot