United Flight 504 Deals & Information (2025/2026)

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United Flight 504 Route Deals From

The cheapest prices found with in the last 7 days for return flights were $104 and for one-way flights to Harry Reid Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jul 28 - Wed, Aug 6
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$104 Roundtrip, found 1 day ago
$104
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jul 28 from San Francisco Intl. to Harry Reid Intl., returning Wed, Aug 6, priced at $104 found 1 day ago
Thu, Aug 28 - Sat, Aug 30
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$106 Roundtrip, found 11 hours ago
$106
Roundtrip
found 11 hours ago
Select United flight, departing Thu, Aug 28 from San Francisco Intl. to Harry Reid Intl., returning Sat, Aug 30, priced at $106 found 11 hours ago
Thu, Aug 28 - Sat, Aug 30
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$107 Roundtrip, found 11 hours ago
$107
Roundtrip
found 11 hours ago
Select United flight, departing Thu, Aug 28 from San Francisco Intl. to Harry Reid Intl., returning Sat, Aug 30, priced at $107 found 11 hours ago
Mon, Jul 28 - Wed, Aug 6
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$113 Roundtrip, found 1 day ago
$113
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jul 28 from San Francisco Intl. to Harry Reid Intl., returning Wed, Aug 6, priced at $113 found 1 day ago

Frequently asked questions

What route does flight number UA504 take?
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.
What terminal does UA504 fly out of?
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.
What kind of plane is on 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.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your UA504 flight with Travelocity, please visit our Customer Service Portal.