🇺🇸 N277AK - Boeing 737NG 900ER/W - Alaska Airlines ASA388/AS388 (SEA-STL-SEA) - 3.4 mi away @ 12100 ft, heading NW at 442 mph. Spotted 11x before. [03:31:05 PM CDT] #A2C087 #N277AK #B739 #ALASKA #ASA388 #AS388 #Landing #ADSB #ADSBbot