🇺🇸 N8558Z - Boeing 737NG 800/W - Southwest Airlines SWA1910/WN1910, Chicago Midway (MDW) to Austin-Bergstrom (AUS) - 7.4 mi away @ 39825 ft, heading SW at 511 mph. Spotted 101x before. [10:43:58 AM CDT] #ABBD73 #N8558Z #B738 #SOUTHWEST #SWA1910 #WN1910 #ADSB #ADSBbot