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

🇲🇽 XA-AMF - BOEING 737 MAX 9 - AMX687/AM687, Chicago O'Hare (ORD) to Licenciado Benito Juarez (MEX) - 4.2 mi away @ 34450 ft, heading SSW at 477 mph. Spotted 3x before. [03:52:01 PM CST] #0D112C #XA_AMF #B39M #AMX687 #AM687 #ADSB #ADSBbot

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

🇲🇽 XA-AMF - BOEING 737 MAX 9 - AMX682/AM682, Licenciado Benito Juarez (MEX) to Chicago O'Hare (ORD) - 4.7 mi away @ 36275 ft, heading NNE at 500 mph. Spotted 2x before. [10:54:31 PM CST] #0D112C #XA_AMF #B39M #AMX682 #AM682 #ADSB #ADSBbot

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

🇲🇽 XA-AMF - BOEING 737 MAX 9 - AMX683/AM683, Chicago O'Hare (ORD) to Licenciado Benito Juarez (MEX) - 3.9 mi away @ 33200 ft, heading SW at 513 mph. Spotted once before. [07:21:24 AM CST] #0D112C #XA_AMF #B39M #AMX683 #AM683 #ADSB #ADSBbot

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

🇲🇽 XA-AMF - BOEING 737 MAX 9 - AMX689/AM689, Chicago O'Hare (ORD) to Licenciado Benito Juarez (MEX) - 4.4 mi away @ 35700 ft, heading SSW at 524 mph. Spotted for first time! [03:17:11 AM CDT] #0D112C #XA_AMF #B39M #AMX689 #AM689 #ADSB #ADSBbot