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

🇺🇸 N335SN - Boeing 737MAX 8 - American Airlines AAL2421/AA2421, Chicago O'Hare (ORD) to Dallas-Fort Worth (DFW) - 4.3 mi away @ 36425 ft, heading SW at 460 mph. Spotted 14x before! [09:22:24 AM CST] #A3A9FF #N335SN #B38M #AMERICAN #AAL2421 #AA2421 #ADSB #ADSBbot