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

🇺🇸 N708AL - Boeing 737MAX 9 - Alaska Airlines ASA113/AS113, San Francisco (SFO) to John F Kennedy (JFK) - 4.6 mi away @ 37250 ft, heading ESE at 549 mph. Spotted 4x before! [02:42:24 PM CDT] #A97251 #N708AL #B39M #ALASKA #ASA113 #AS113 #ADSB #ADSBbot