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

🇺🇸 N8778Q - Boeing 737MAX 8 - Southwest Airlines SWA3660/WN3660, St Louis Lambert (STL) to Tampa (TPA) - 4.1 mi away @ 6400 ft, heading S at 332 mph. Spotted 75x before! [07:13:45 PM CDT] #AC13D6 #N8778Q #B38M #SOUTHWEST #SWA3660 #WN3660 #TakingOff #Departure #ADSB #ADSBbot