$267 Cheap United flights Philadelphia (PHL) to San Francisco (SFO)

View $267 flight on Wed, Aug 27, 2025Opens in a new window

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$267 Cheap United flights Philadelphia (PHL) to San Francisco (SFO)

Prices were available within the past 7 days and start at $267 for one-way flights and $295 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Aug 31 - Sat, Sep 6
PHL
Philadelphia
SFO
San Francisco
$295 Roundtrip, found 1 hour ago
$295
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Aug 31 from Philadelphia to San Francisco, returning Sat, Sep 6, priced at $295 found 1 hour ago
United
Thu, Nov 20 - Sun, Nov 23
PHL
Philadelphia
SFO
San Francisco
$299 Roundtrip, just found
$299
Roundtrip
just found
Select United flight, departing Thu, Nov 20 from Philadelphia to San Francisco, returning Sun, Nov 23, priced at $299 just found
United
Fri, Jul 18 - Sun, Jul 20
PHL
Philadelphia
SFO
San Francisco
$307 Roundtrip, found 1 hour ago
$307
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Jul 18 from Philadelphia to San Francisco, returning Sun, Jul 20, priced at $307 found 1 hour ago
United
Mon, Aug 25 - Sun, Aug 31
PHL
Philadelphia
SFO
San Francisco
$313 Roundtrip, found 1 hour ago
$313
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Aug 25 from Philadelphia to San Francisco, returning Sun, Aug 31, priced at $313 found 1 hour ago
Flights from Philadelphia (PHL) to San Francisco (SFO)
Origin airport
Philadelphia Intl.
Destination airport
San Francisco Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Popular airline
JetBlue Airways
Distance
2515 mi
Average flight time
3 hours 47 mins

Frequently asked questions

How much is a United Airlines flight from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO)?
You'll discover cheap return United Airlines flights from $295 from PHL to SFO by sorting your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $267 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PHL to SFO with United Airlines?
Search for one-way or round-trip flights to San Francisco in February or April. You could find cheaper fares with United Airlines during these off-season months.
What is the cheapest time to book flights from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO) with United Airlines?
Start searching one to three months before your departure to find cheaper fares on United Airlines flights from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO)?
United Airlines has direct flights from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO), with 7 weekly departures. Simply choose the "Nonstop" and "Airline" filters during your search on Expedia to see all direct United Airlines flights to SFO.
How long does it take to fly from PHL to SFO with United Airlines?
On average, it takes 6h 26m to fly nonstop from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO) with United Airlines.
What is the earliest United Airlines flight from PHL to SFO?
The first United Airlines flight from PHL to SFO takes off at 6:20PM UTC-5, landing at 9:46PM UTC-8. If you prefer to jet off later in the day, the last United Airlines flight leaves PHL at 6:24PM UTC-5 and touches down at SFO at 9:50PM UTC-8. Flying before midday is often a smart option as morning flights tend to experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in San Francisco?
Catch a United Airlines flight from Philadelphia Intl. Airport (PHL) to San Francisco, and you're most likely to arrive at San Francisco Intl. Airport (SFO). This is the airline's primary hub here.
Why fly with United Airlines from PHL to SFO?
Offering a rewarding loyalty program, United Airlines is a popular choice for many travelers departing from PHL to SFO. Plus, if you're a United Mileage Plus and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO)?
United Airlines typically flies Boeing 737 MAX 8 planes for flights from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO). This airline also operates the Boeing 737 MAX 9 on this route. Keep in mind that aircraft type can vary depending on operational needs, so the plane you catch could be different when you leave.
Can I change or cancel my United Airlines flight from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO)?
Changes are often free within 24 hours of booking, but your airline may charge you after that. For further details about modifying your flights, check out your "Trips," select your flight and click on "Manage Booking." If you want the flexibility to adjust your plans without extra charges, tick the "Changes included" or "No cancel fee" filter when planning your next escape.

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