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

🇲🇽 XA-SRK - AMX683/AM683, Chicago O'Hare (ORD) to Licenciado Benito Juarez (MEX) - 4.9 mi away @ 36100 ft, heading SW at 551 mph. Spotted once before! [08:03:59 AM CDT] #0D106D #XA_SRK #B39M #AMX683 #AM683 #ADSB #ADSBbot

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

🇲🇽 XA-SRK - Aerovias De Mexico AMX689/AM689, Chicago O'Hare (ORD) to Licenciado Benito Juarez (MEX) - 4.5 mi away @ 36025 ft, heading SSW at 550 mph. Spotted for first time! [03:09:52 AM CDT] #0D106D #XA_SRK #B39M #AEROMEXICO #AMX689 #AM689 #ADSB #ADSBbot