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

🇺🇸 N462AS - Boeing 737NG 990ER/W - Alaska Airlines ASA390/AS390, San Diego (SAN) to General Edward Lawrence Logan (BOS) - 4.6 mi away @ 37200 ft, heading E at 522 mph. Spotted 5x before! [02:48:49 PM CDT] #A5A11A #N462AS #B739 #ALASKA #ASA390 #AS390 #ADSB #ADSBbot