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

🇺🇸 N816NV - BOEING 737 MAX 8 - ALLEGIANT AIR LLC AAY1215/G41215, Quad Cities (MLI) to Orlando Sanford (SFB) - 4.6 mi away @ 39225 ft, heading SSE at 546 mph. Spotted for first time! [04:16:55 PM CDT] #AB20E6 #N816NV #B38M #AAY1215 #G41215 #ADSB #ADSBbot

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

🇺🇸 N813NV - Boeing 737MAX 8 200 - Allegiant Air AAY1215/G41215, Des Moines (DSM) to Orlando Sanford (SFB) - 4.4 mi away @ 36525 ft, heading SE at 549 mph. Spotted for first time! [09:42:31 AM CDT] #AB15C1 #N813NV #B38M #ALLEGIANT #AAY1215 #G41215 #ADSB #ADSBbot