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

🇺🇸 N7729A - Boeing 737NG 76N/W - Southwest Airlines SWA1510/WN1510, Chicago O'Hare (ORD) to Cancun (CUN) - 4.6 mi away @ 37650 ft, heading SSW at 536 mph. Spotted 63x before! [11:35:41 AM CST] #AA7409 #N7729A #B737 #SOUTHWEST #SWA1510 #WN1510 #ADSB #ADSBbot