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

🇺🇸 N75429 - Boeing 737NG 924ER/W - United Airlines UAL1645/UA1645, Cleveland-Hopkins (CLE) to George Bush Intcntl/Houston (IAH) - 4.0 mi away @ 34375 ft, heading SW at 464 mph. Spotted 16x before! [06:42:30 AM CST] #AA2BA5 #N75429 #B739 #UNITED #UAL1645 #UA1645 #ADSB #ADSBbot

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

🇺🇸 N17405 - BOEING 737 MAX 9 - UMB BANK NA TRUSTEE UAL1645/UA1645, Cleveland-Hopkins (CLE) to George Bush Intcntl/Houston (IAH) - 5.0 mi away @ 35525 ft, heading SW at 521 mph. Spotted for first time! [03:33:18 PM CDT] #A12A7F #N17405 #B39M #UAL1645 #UA1645 #ADSB #ADSBbot