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

🇺🇸 N37536 - Boeing 737MAX 9 - United Airlines UAL8155/UA8155 (CID-ORD-EWR) - 4.3 mi away @ 35525 ft, heading SW at 450 mph. Spotted 9x before! [12:50:49 AM CST] #A4493E #N37536 #B39M #UNITED #UAL8155 #UA8155 #ADSB #ADSBbot

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

🇺🇸 N14530 - AIRBUS A321neo - UNITED AIRLINES INC UAL8155/UA8155 (FLL-ORD-DCA) - 3.6 mi away @ 30675 ft, heading SW at 481 mph. Spotted once before! [10:17:42 PM CDT] #A0B81D #N14530 #A21N #UAL8155 #UA8155 #ADSB #ADSBbot