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

🇺🇸 N434AS - Boeing 737NG 990ER/W - Alaska Airlines ASA527/AS527, Seattle-Tacoma (SEA) to Nashville (BNA) - 4.5 mi away @ 35425 ft, heading SE at 605 mph. Spotted 5x before. [05:38:31 PM CST] #A5320B #N434AS #B739 #ALASKA #ASA527 #AS527 #ADSB #ADSBbot

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

🇺🇸 N431AS - Boeing 737NG 990ER/W - Alaska Airlines ASA527/AS527, Orlando (MCO) to Portland (PDX) - 3.7 mi away @ 31825 ft, heading NW at 491 mph. Spotted 3x before! [09:42:29 AM CST] #A526E6 #N431AS #B739 #ALASKA #ASA527 #AS527 #ADSB #ADSBbot