Map of the St. Louis area showing the position and track of the aircraft described in the post.
🇺🇸 N283WN - Boeing 737NG 7H4/W - Southwest Airlines SWA1575/WN1575, San Antonio (SAT) to Baltimore/Washington Thurgood Marshall (BWI) - 4.5 mi away @ 39125 ft, heading NNE at 521 mph. Spotted 68x before. [09:56:37 PM CDT] #A2DB21 #N283WN #B737 #SOUTHWEST #SWA1575 #WN1575 #ADSB #ADSBbot