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

🇺🇸 N827SY - Boeing 737NG 8F2/W - Sun Country Airlines SCX8774/SY8774 - 4.4 mi away @ 18400 ft, heading NW at 426 mph. Spotted 4x before! [11:19:37 AM CDT] #AB4C83 #N827SY #B738 #SUN_COUNTRY #SCX8774 #SY8774 #ADSB #ADSBbot