United Flight 555 Deals & Information (2025/2026)

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United Flight 555 Route Deals From $287

The cheapest prices found with in the last 7 days for return flights were $252 and $287 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Aug 31 - Wed, Sep 10
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$252 Roundtrip, found 3 hours ago
$252
Roundtrip
found 3 hours ago
Select United flight, departing Sun, Aug 31 from Newark Liberty Intl. Airport to San Francisco Intl., returning Wed, Sep 10, priced at $252 found 3 hours ago
Sun, Aug 31 - Wed, Sep 10
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$274 Roundtrip, found 3 hours ago
$274
Roundtrip
found 3 hours ago
Select United flight, departing Sun, Aug 31 from Newark Liberty Intl. Airport to San Francisco Intl., returning Wed, Sep 10, priced at $274 found 3 hours ago

Frequently asked questions

What route does flight number UA555 take?
UA555 is used on multiple routes, but the most common is between DIA airport and San Antonio Intl. Airport (SAT). If your flight is direct, you'll land in approximately 2 hours and 5 minutes. Multi-stop flights can also use this number, as can flights on other routes.
What kind of plane is on flight number UA555?
It's more than likely you'll be cruising aboard a Boeing 737-800 if you've booked a seat on flight UA555 from DIA airport to SAT. This is the most commonly used aircraft type on this popular 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 UA555 flight with Travelocity, please visit our Customer Service Portal.