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

🇺🇸 N814NV - Boeing 737MAX 8 200 - Allegiant Air AAY2924/G42924, Joe Foss Field (FSD) to Orlando Sanford (SFB) - 4.9 mi away @ 41250 ft, heading SE at 510 mph. Spotted once before! [10:53:19 AM CDT] #AB1978 #N814NV #B38M #ALLEGIANT #AAY2924 #G42924 #ADSB #ADSBbot