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

🇺🇸 N829SY - Boeing 737NG 8F2/W - Sun Country Airlines SCX8442/SY8442, Newark Liberty (EWR) to Lubbock Preston Smith (LBB) - 5.9 mi away @ 40350 ft, heading WSW at 448 mph. Spotted 11x before. [02:38:14 PM CST] #AB53F1 #N829SY #B738 #SUN_COUNTRY #SCX8442 #SY8442 #ADSB #ADSBbot