Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N942AK - Boeing 737MAX 9 - Alaska Airlines ASA305/AS305 (SEA-MIA-SEA) - 3.9 mi away @ 32600 ft, heading NW at 477 mph. Spotted 9x before. [07:40:20 PM CDT] #AD14A0 #N942AK #B39M #ALASKA #ASA305 #AS305 #ADSB #ADSBbot