🇺🇸 N8580Z - Boeing 737NG 800/W - Southwest Airlines SWA4498/WN4498, St Louis Lambert (STL) to San Antonio (SAT) - 3.8 mi away @ 9750 ft, heading SW at 320 mph. Spotted 105x before. [08:46:05 AM CDT] #ABC780 #N8580Z #B738 #SOUTHWEST #SWA4498 #WN4498 #TakingOff #Departure #ADSB #ADSBbot