United Flight 504 Deals & Information (2025/2026)

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United Flight 504 Route Deals From $66

The cheapest prices found with in the last 7 days for return flights were $99 and $66 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.
$99 Roundtrip, found 6 hours ago
$99
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Jul 28 from San Francisco Intl. to Harry Reid Intl., returning Wed, Aug 6, priced at $99 found 6 hours ago
Mon, Jul 28 - Wed, Aug 6
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$104 Roundtrip, found 6 hours ago
$104
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Jul 28 from San Francisco Intl. to Harry Reid Intl., returning Wed, Aug 6, priced at $104 found 6 hours ago
Mon, Jul 28 - Wed, Aug 6
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$107 Roundtrip, found 6 hours ago
$107
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Jul 28 from San Francisco Intl. to Harry Reid Intl., returning Wed, Aug 6, priced at $107 found 6 hours ago
Mon, Jul 28 - Wed, Aug 6
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$108 Roundtrip, found 6 hours ago
$108
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Jul 28 from San Francisco Intl. to Harry Reid Intl., returning Wed, Aug 6, priced at $108 found 6 hours ago
Wed, Oct 29 - Fri, Oct 31
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$109 Roundtrip, found 22 hours ago
$109
Roundtrip
found 22 hours ago
Select United flight, departing Wed, Oct 29 from San Francisco Intl. to Harry Reid Intl., returning Fri, Oct 31, priced at $109 found 22 hours ago
Mon, Jul 28 - Wed, Aug 6
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$113 Roundtrip, found 6 hours ago
$113
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Jul 28 from San Francisco Intl. to Harry Reid Intl., returning Wed, Aug 6, priced at $113 found 6 hours ago
Mon, Jul 28 - Wed, Aug 6
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$118 Roundtrip, found 6 hours ago
$118
Roundtrip
found 6 hours ago
Select United flight, departing Mon, Jul 28 from San Francisco Intl. to Harry Reid Intl., returning Wed, Aug 6, priced at $118 found 6 hours ago
Wed, Jul 23 - Sat, Jul 26
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$119 Roundtrip, found 7 hours ago
$119
Roundtrip
found 7 hours ago
Select United flight, departing Wed, Jul 23 from San Francisco Intl. to Harry Reid Intl., returning Sat, Jul 26, priced at $119 found 7 hours ago
Sun, Oct 12 - Thu, Oct 16
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$120 Roundtrip, found 4 days ago
$120
Roundtrip
found 4 days ago
Select United flight, departing Sun, Oct 12 from San Francisco Intl. to Harry Reid Intl., returning Thu, Oct 16, priced at $120 found 4 days ago
Wed, Oct 8 - Sat, Oct 11
SFO
San Francisco Intl.
LAS
Harry Reid Intl.
$123 Roundtrip, found 3 days ago
$123
Roundtrip
found 3 days ago
Select United flight, departing Wed, Oct 8 from San Francisco Intl. to Harry Reid Intl., returning Sat, Oct 11, priced at $123 found 3 days 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.