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

🇺🇸 N408AS - Boeing 737NG 990ER/W - Alaska Airlines ASA618/AS618 (SEA-STL-SEA) - 4.4 mi away @ 14450 ft, heading NW at 389 mph. Spotted 6x before. [03:06:22 PM CST] #A4CA6A #N408AS #B739 #ALASKA #ASA618 #AS618 #TakingOff #ADSB #ADSBbot

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

🇺🇸 N732AL - BOEING 737 MAX 9 - ALASKA AIRLINES INC ASA618/AS618 (SEA-STL-SEA) - 3.5 mi away @ 8275 ft, heading E at 346 mph. Spotted once before. [01:28:53 PM CST] #A9D284 #N732AL #B39M #ASA618 #AS618 #Landing #ADSB #ADSBbot

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

🇺🇸 N453AS - BOEING 737-990ER - Alaska Airlines ASA618/AS618 (SEA-STL-SEA) - 3.3 mi away @ 13100 ft, heading NW at 406 mph. Spotted 5x before. [03:09:52 PM CST] #A57D52 #N453AS #B739 #ALASKA #ASA618 #AS618 #TakingOff #ADSB #ADSBbot