🇺🇸 N825UA - Airbus A319 131 - United Airlines UAL1257/UA1257 (STL-SFO-SAN) - 4.4 mi away @ 7900 ft, heading SW at 342 mph. Spotted 33x before. [09:23:41 AM CDT] #AB4531 #N825UA #A319 #UNITED #UAL1257 #UA1257 #TakingOff #ADSB #ADSBbot