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

🇺🇸 N39423 - Boeing 737NG 924ER/W - United Airlines UAL2711/UA2711, Washington Dulles (IAD) to Harry Reid (LAS) - 4.3 mi away @ 34050 ft, heading W at 501 mph. Spotted 12x before! [06:40:46 PM CDT] #A4945F #N39423 #B739 #UNITED #UAL2711 #UA2711 #ADSB #ADSBbot

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

🇺🇸 N37297 - Boeing 737MAX 8 - United Airlines UAL2711/UA2711, Washington Dulles (IAD) to Harry Reid (LAS) - 4.4 mi away @ 36150 ft, heading W at 503 mph. Spotted 3x before! [07:22:42 PM CDT] #A43EEC #N37297 #B38M #UNITED #UAL2711 #UA2711 #ADSB #ADSBbot