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

🇺🇸 N804AM - BOEING 737-9 - BOEING CO AMX683/AM683, Chicago O'Hare (ORD) to Licenciado Benito Juarez (MEX) - 4.0 mi away @ 34400 ft, heading SSW at 493 mph. Spotted once before. [03:55:23 PM CST] #AAF0C5 #N804AM #B39M #AMX683 #AM683 #ADSB #ADSBbot

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

🇺🇸 N804AM - BOEING 737-9 - BOEING CO AMX683/AM683, Chicago O'Hare (ORD) to Licenciado Benito Juarez (MEX) - 4.1 mi away @ 34325 ft, heading SSW at 506 mph. Spotted for first time! [07:54:01 AM CST] #AAF0C5 #N804AM #B39M #AMX683 #AM683 #ADSB #ADSBbot