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

🇺🇸 N838SY - Boeing 737NG 86N/W - Sun Country Airlines SCX8140/SY8140 - 4.3 mi away @ 37575 ft, heading SSE at 531 mph. Spotted 12x before! [03:47:54 PM CDT] #AB77B9 #N838SY #B738 #SUN_COUNTRY #SCX8140 #SY8140 #ADSB #ADSBbot