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

🇺🇸 N27509 - Boeing 737MAX 9 - United Airlines UAL1887/UA1887, George Bush Intcntl/Houston (IAH) to Washington Dulles (IAD) - 4.6 mi away @ 39150 ft, heading NE at 588 mph. Spotted 5x before! [09:46:36 PM CDT] #A2BB89 #N27509 #B39M #UNITED #UAL1887 #UA1887 #ADSB #ADSBbot

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

🇺🇸 N39463 - Boeing 737NG 924ER/W - United Airlines UAL1887/UA1887, George Bush Intcntl/Houston (IAH) to Washington Dulles (IAD) - 4.8 mi away @ 36675 ft, heading ENE at 572 mph. Spotted 10x before! [10:53:15 PM CDT] #A494EB #N39463 #B739 #UNITED #UAL1887 #UA1887 #ADSB #ADSBbot