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

🇺🇸 N37257 - Boeing 737MAX 8 - United Airlines UAL1204/UA1204, Raleigh-Durham (RDU) to San Francisco (SFO) - 4.2 mi away @ 37450 ft, heading W at 442 mph. Spotted 9x before! [07:46:28 AM CDT] #A43E60 #N37257 #B38M #UNITED #UAL1204 #UA1204 #ADSB #ADSBbot

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

🇺🇸 N810UA - Airbus A319 131 - United Airlines UAL1204/UA1204, Washington Dulles (IAD) to Albuquerque Sunport (ABQ) - 4.2 mi away @ 35900 ft, heading WSW at 515 mph. Spotted 31x before! [01:17:12 PM CDT] #AB0B1F #N810UA #A319 #UNITED #UAL1204 #UA1204 #ADSB #ADSBbot

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

🇺🇸 N15751 - Boeing 737NG 71Q/W - United Airlines UAL1204/UA1204, Chicago O'Hare (ORD) to Albuquerque Sunport (ABQ) - 5.6 mi away @ 40325 ft, heading WSW at 529 mph. Spotted 10x before! [09:42:50 AM CDT] #A0E751 #N15751 #B737 #UNITED #UAL1204 #UA1204 #ADSB #ADSBbot