🇺🇸 N821SY - Boeing 737NG 8FH/W - Sun Country Airlines SCX1626/SY1626, St Louis Lambert (STL) to Minneapolis-St Paul/Wold-Chamberlain (MSP) - 3.4 mi away @ 18025 ft, heading NW at 438 mph. Spotted for first time! [06:54:05 PM CDT] #AB3639 #N821SY #B738 #SUN_COUNTRY #SCX1626 #SY1626 #ADSB #ADSBbot