$154 Cheap Alaska Airlines flights Philadelphia (PHL) to San Francisco (SFO)

View $154 flight on Sat, Sep 27, 2025Opens in a new window

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$154 Cheap Alaska Airlines flights Philadelphia (PHL) to San Francisco (SFO)

Prices were available within the past 7 days and start at $154 for one-way flights and $288 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, Sep 3 - Sat, Sep 6
PHL
Philadelphia
SFO
San Francisco
$288 Roundtrip, just found
$288
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Sep 3 from Philadelphia to San Francisco, returning Sat, Sep 6, priced at $288 just found
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 40 mins

Frequently asked questions

How much is an Alaska Airlines flight from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO)?
Apply the "Price (lowest to highest)" filter on Expedia to search for cheap Alaska Airlines return flights from $288 from PHL to SFO. Affordable one-way options from $154 are available too.**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 Alaska Airlines?
Browse for round-trip or one-way flights to San Francisco in February or April. You could find an affordable fare with Alaska 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 Alaska Airlines?
Begin your search one to three months before your departure to score cheaper fares on Alaska 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 cut 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 right, and you can enjoy significant savings on domestic journeys.*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 Alaska Airlines fly nonstop from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO)?
Click on the "Nonstop" filter when looking for direct Alaska Airlines flights from PHL to SFO. It's also an easy way to compare other carriers servicing the same nonstop trip.
What is the earliest Alaska Airlines flight from PHL to SFO?
Sort your results by "Morning" and "Early Morning" to find the earliest departures from PHL to SFO. Taking off early means you're 20% less likely to experience 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 Alaska Airlines fly into in San Francisco?
San Francisco Intl. Airport (SFO) is the main San Francisco hub for Alaska Airlines flights from Philadelphia Intl. Airport (PHL).
Why fly with Alaska Airlines from PHL to SFO?
Flying from PHL to SFO with Alaska Airlines comes with a range of perks, such as a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That's on top of the Mileage Plan points you can earn with Alaska Airlines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Alaska Airlines flight from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO)?
Changes are generally free within 24 hours of making a booking, but your airline may charge you after that time. For further details about altering your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to make changes without additional costs, apply the "No cancel fee" or "Changes included" filter when organizing your next break.

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*Available to One Key members.