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

🇺🇸 N68891 - Boeing 737NG 924ER/W - United Airlines UAL1633/UA1633, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 3.8 mi away @ 28800 ft, heading SW at 465 mph. Spotted 11x before. [09:58:44 AM CST] #A9249C #N68891 #B739 #UNITED #UAL1633 #UA1633 #ADSB #ADSBbot

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

🇺🇸 N81449 - Boeing 737NG 924ER/W - United Airlines UAL1633/UA1633, Chicago O'Hare (ORD) to George Bush Intcntl/Houston (IAH) - 3.3 mi away @ 26200 ft, heading SW at 420 mph. Spotted 15x before. [09:54:09 AM CST] #AB1B3E #N81449 #B739 #UNITED #UAL1633 #UA1633 #ADSB #ADSBbot