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

🇺🇸 N7745A - Boeing 737NG 7BD/W - Southwest Airlines SWA1561/WN1561, Baltimore/Washington Thurgood Marshall (BWI) to Orlando (MCO) - 6.2 mi away @ 39075 ft, heading NE at 539 mph. Spotted 79x before. [11:23:12 PM CDT] #AA7AEB #N7745A #B737 #SOUTHWEST #SWA1561 #WN1561 #ADSB #ADSBbot