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

🇺🇸 N17344 - Boeing 737MAX 8 - United Airlines UAL1939/UA1939, San Francisco (SFO) to Indianapolis (IND) - 4.8 mi away @ 38800 ft, heading E at 548 mph. Spotted 2x before! [03:09:37 PM CDT] #A12753 #N17344 #B38M #UNITED #UAL1939 #UA1939 #ADSB #ADSBbot

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

🇺🇸 N27277 - Boeing 737MAX 8 - United Airlines UAL1939/UA1939 (SFO-IND-IAD) - 4.9 mi away @ 38650 ft, heading E at 553 mph. Spotted 11x before! [03:13:56 PM CDT] #A2B157 #N27277 #B38M #UNITED #UAL1939 #UA1939 #ADSB #ADSBbot

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

🇺🇸 N17301 - Boeing 737MAX 8 - United Airlines UAL1939/UA1939 (BWI-SFO-SLC) - 4.4 mi away @ 37800 ft, heading W at 505 mph. Spotted 17x before! [09:45:24 AM CDT] #A126C4 #N17301 #B38M #UNITED #UAL1939 #UA1939 #ADSB #ADSBbot