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

🇺🇸 N842SY - Boeing 737NG 8K5/W - Sun Country Airlines SCX8423/SY8423, Monroe Regional (MLU) to Chicago O'Hare (ORD) - 4.7 mi away @ 38750 ft, heading NNE at 507 mph. Spotted 8x before! [01:27:10 PM CDT] #AB88EE #N842SY #B738 #SUN_COUNTRY #SCX8423 #SY8423 #ADSB #ADSBbot