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

🇺🇸 N823NV - BOEING 737 MAX 8 - Allegiant Air AAY2644/G42644, The Eastern Iowa (CID) to St Pete-Clearwater (PIE) - 4.4 mi away @ 37225 ft, heading SSE at 576 mph. Spotted 2x before. [07:13:52 PM CST] #AB3D40 #N823NV #B38M #ALLEGIANT #AAY2644 #G42644 #ADSB #ADSBbot