United Flight UA555 Deals & Information (2025/2026)

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United Flight 555 Route Deals From $91

The cheapest prices found with in the last 7 days for return flights were $183 and $91 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Sep 17 - Tue, Sep 23
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$183 Roundtrip, found 4 hours ago
$183
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 17 from Newark Liberty Intl. Airport to San Francisco Intl., returning Tue, Sep 23, priced at $183 found 4 hours ago
Wed, Sep 17 - Tue, Sep 23
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$184 Roundtrip, found 4 hours ago
$184
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 17 from Newark Liberty Intl. Airport to San Francisco Intl., returning Tue, Sep 23, priced at $184 found 4 hours ago
Wed, Sep 17 - Tue, Sep 23
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$213 Roundtrip, found 4 hours ago
$213
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 17 from Newark Liberty Intl. Airport to San Francisco Intl., returning Tue, Sep 23, priced at $213 found 4 hours ago
Wed, Sep 3 - Thu, Sep 4
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$227 Roundtrip, found 12 hours ago
$227
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Sep 3 from Newark Liberty Intl. Airport to San Francisco Intl., returning Thu, Sep 4, priced at $227 found 12 hours ago
Wed, Sep 17 - Tue, Sep 23
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$238 Roundtrip, found 4 hours ago
$238
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Sep 17 from Newark Liberty Intl. Airport to San Francisco Intl., returning Tue, Sep 23, priced at $238 found 4 hours ago
Fri, Sep 12 - Mon, Sep 15
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$241 Roundtrip, found 9 hours ago
$241
Roundtrip
found 9 hours ago
Select United flight, departing Fri, Sep 12 from Newark Liberty Intl. Airport to San Francisco Intl., returning Mon, Sep 15, priced at $241 found 9 hours ago
Fri, Sep 12 - Mon, Sep 15
EWR
Newark Liberty Intl. Airport
SFO
San Francisco Intl.
$243 Roundtrip, found 9 hours ago
$243
Roundtrip
found 9 hours ago
Select United flight, departing Fri, Sep 12 from Newark Liberty Intl. Airport to San Francisco Intl., returning Mon, Sep 15, priced at $243 found 9 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.