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

🇺🇸 N978AK - Boeing 737MAX 9 - Alaska Airlines ASA377/AS377, Hartsfield - Jackson Atlanta (ATL) to Seattle-Tacoma (SEA) - 3.8 mi away @ 33500 ft, heading WNW at 426 mph. Spotted 2x before. [08:05:44 AM CST] #ADA167 #N978AK #B39M #ALASKA #ASA377 #AS377 #ADSB #ADSBbot

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

🇺🇸 N962AK - Boeing 737MAX 9 - Alaska Airlines ASA377/AS377, Hartsfield - Jackson Atlanta (ATL) to Seattle-Tacoma (SEA) - 3.7 mi away @ 31375 ft, heading NW at 464 mph. Spotted 8x before! [07:24:01 AM CST] #AD639E #N962AK #B39M #ALASKA #ASA377 #AS377 #ADSB #ADSBbot

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

🇺🇸 N581AS - Boeing 737NG 890/W - Alaska Airlines ASA377/AS377, Hartsfield - Jackson Atlanta (ATL) to Seattle-Tacoma (SEA) - 4.5 mi away @ 37300 ft, heading NW at 465 mph. Spotted 4x before! [07:21:10 AM CDT] #A779B0 #N581AS #B738 #ALASKA #ASA377 #AS377 #ADSB #ADSBbot

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

🇺🇸 N935AK - Boeing 737MAX 9 - Alaska Airlines ASA377/AS377, Hartsfield - Jackson Atlanta (ATL) to Seattle-Tacoma (SEA) - 4.5 mi away @ 38000 ft, heading NW at 524 mph. Spotted 9x before! [08:58:03 AM CDT] #ACF846 #N935AK #B39M #ALASKA #ASA377 #AS377 #ADSB #ADSBbot