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

🇺🇸 N724AL - Boeing 737MAX 9 - Alaska Airlines ASA497/AS497, Hartsfield - Jackson Atlanta (ATL) to Seattle-Tacoma (SEA) - 3.7 mi away @ 31725 ft, heading NW at 413 mph. Spotted 3x before! [06:05:10 PM CST] #A9B273 #N724AL #B39M #ALASKA #ASA497 #AS497 #ADSB #ADSBbot