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

🇺🇸 N17349 - Boeing 737MAX 8 - United Airlines UAL552/UA552 (PIT-SFO-PHL) - 5.0 mi away @ 37975 ft, heading W at 497 mph. Spotted 4x before! [05:54:28 PM CDT] #A12758 #N17349 #B38M #UNITED #UAL552 #UA552 #ADSB #ADSBbot