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

🇺🇸 N214AK - Boeing 737NG 900ER/W - Alaska Airlines ASA427/AS427, Seattle-Tacoma (SEA) to Cincinnati/Northern Kentucky (CVG) - 4.4 mi away @ 36725 ft, heading ESE at 541 mph. Spotted 5x before! [05:49:20 AM CDT] #A1C868 #N214AK #B739 #ALASKA #ASA427 #AS427 #ADSB #ADSBbot