Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N812UP - BOEING 737 MAX 8 - American Airlines AAL2269/AA2269 (DFW-STL-DFW) - 3.3 mi away @ 8125 ft, heading SW at 306 mph. Spotted 3x before. [08:58:29 PM CST] #AB129A #N812UP #B38M #AMERICAN #AAL2269 #AA2269 #TakingOff #ADSB #ADSBbot