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

🇺🇸 N551GJ - Bombardier CRJ 700 702ER - United Express GJS4399/G74399, St Louis Lambert (STL) to Chicago O'Hare (ORD) - 3.3 mi away @ 13275 ft, heading NW at 405 mph. Spotted 11x before! [10:14:25 AM CDT] #A703C1 #N551GJ #CRJ7 #LINDBERGH #GJS4399 #G74399 #TakingOff #Departure #ADSB #ADSBbot