🇺🇸 N939WN - Boeing 737NG 7H4/W - Southwest Airlines SWA193/WN193, Chicago Midway (MDW) to San Antonio (SAT) - 4.9 mi away @ 39575 ft, heading SW at 449 mph. Spotted 89x before. [10:35:35 AM CDT] #AD0919 #N939WN #B737 #SOUTHWEST #SWA193 #WN193 #ADSB #ADSBbot