United Flight UA504 Deals & Information (2025/2026)

UA504 is used on multiple routes, but the most common is between San Francisco, CA Airport (SFO-San Francisco Intl.) and Los Angeles, CA Airport (LAX-Los Angeles Intl.). If your flight goes direct, you’ll arrive in about 1 hour and 51 minutes. Multi-stop flights can also travel under the same number, as can flights on other routes.

Terminal 3 is where you’ll most likely board from if you’re booked on a flight out of San Francisco Airport. San Francisco Airport to Los Angeles, CA Airport (LAX-Los Angeles Intl.) is the most popular route for flight number UA504.

It’s highly likely you’ll be boarding an Airbus A319 if you’re on flight number UA504 from San Francisco, CA Airport (SFO-San Francisco Intl.) to Los Angeles, CA Airport (LAX-Los Angeles Intl.). This is the most commonly used type of aircraft on this particular route.

For more info about changing your UA504 flight with Travelocity, please visit our Customer Service Portal.