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

🇺🇸 N17337 - Boeing 737MAX 8 - United Airlines UAL1340/UA1340, San Francisco (SFO) to Baltimore/Washington Thurgood Marshall (BWI) - 4.3 mi away @ 36625 ft, heading E at 624 mph. Spotted 6x before! [03:04:28 AM CST] #A12733 #N17337 #B38M #UNITED #UAL1340 #UA1340 #ADSB #ADSBbot

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

🇺🇸 N37308 - Boeing 737MAX 8 - United Airlines UAL1340/UA1340, San Francisco (SFO) to Baltimore/Washington Thurgood Marshall (BWI) - 4.2 mi away @ 34750 ft, heading E at 603 mph. Spotted 6x before! [02:58:27 AM CST] #A44169 #N37308 #B38M #UNITED #UAL1340 #UA1340 #ADSB #ADSBbot