BLEEP BLOOP: I just saw an aircraft with callsign #SWA1465 (ICAO code #ACA01A) flying at 314 kt at altitude 9000 feet MSL at coordinates 34.1807,-118.4401.

They must have had a 50 knots tail wind.

https://globe.adsbexchange.com/?icao=aca01a
https://www.openstreetmap.org/?mlat=34.1807&mlon=-118.4401#map=15/34.1807/-118.4401

BLEEP BLOOP: I just saw an aircraft with callsign #SWA274 (ICAO code #ACA01A) flying at 310 kt at altitude 7500 feet MSL at coordinates 34.2369,-118.4087.

That's, like, super fast.

https://globe.adsbexchange.com/?icao=aca01a
https://www.openstreetmap.org/?mlat=34.2369&mlon=-118.4087#map=15/34.2369/-118.4087