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

🇺🇸 N856SY - Boeing 737NG 82R/W - Sun Country Airlines SCX1803/SY1803 (MSP-MSY) - 4.9 mi away @ 39225 ft, heading SSE at 516 mph. Spotted 6x before! [03:34:59 PM CDT] #ABBF49 #N856SY #B738 #SUN_COUNTRY #SCX1803 #SY1803 #ADSB #ADSBbot