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

🇺🇸 N17289 - Boeing 737MAX 8 - United Airlines UAL433/UA433 (PHL-SFO-SEA) - 4.4 mi away @ 38300 ft, heading W at 547 mph. Spotted 7x before! [07:18:54 AM CDT] #A1242D #N17289 #B38M #UNITED #UAL433 #UA433 #ADSB #ADSBbot