$159 Cheap Delta flights San Francisco (SFO) to Philadelphia (PHL)

View $159 flight on Mon, Aug 11, 2025Opens in a new window

$159 Cheap Delta flights San Francisco (SFO) to Philadelphia (PHL)

Prices were available within the past 7 days and start at $159 for one-way flights and $309 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Sep 11 - Mon, Sep 15
SFO
San Francisco
PHL
Philadelphia
$309 Roundtrip, just found
$309
Roundtrip
just found
Select Delta flight, departing Thu, Sep 11 from San Francisco to Philadelphia, returning Mon, Sep 15, priced at $309 just found
Flights from San Francisco (SFO) to Philadelphia (PHL)
Origin airport
San Francisco Intl.
Destination airport
Philadelphia 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
10 hours 13 mins

Frequently asked questions

How much is a Delta Air Lines flight from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL)?
Apply the "Price (lowest to highest)" filter on Expedia to look for cheap Delta Air Lines return flights from $309 from SFO to PHL. Affordable one-way options from $159 are also on offer.**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 SFO to PHL with Delta Air Lines?
January is one of the most affordable months to travel to Philadelphia with Delta Air Lines. You could also find fantastic deals on one-way and return fares in February.
What is the cheapest time to book flights from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL) with Delta Air Lines?
Look for cheap Delta Air Lines flights from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL) one to three months before your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and itinerary, the best day of the week to book a domestic flight is usually Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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 Delta Air Lines fly nonstop from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL)?
Simply enter your dates, click search and tick the "Nonstop" filter on Expedia to browse any direct flights from SFO to PHL with Delta Air Lines or other airlines.
What is the earliest Delta Air Lines flight from SFO to PHL?
Search Delta Air Lines's earliest flights from SFO to PHL by using our "Early Morning" and "Morning" filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**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 Delta Air Lines fly into in Philadelphia?
Jump on a Delta Air Lines flight from San Francisco Intl. Airport (SFO) to Philadelphia, and you'll most likely land at Philadelphia Intl. Airport (PHL). This is the airline's main hub in this city.
Why fly with Delta Air Lines from SFO to PHL?
Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a favorite for many travelers heading from SFO to PHL. Also, if you're a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be put toward future travel.*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 Delta Air Lines flight from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL)?
Depending on your fare type, a fee generally applies if you cancel or change your booking more than 24 hours after it's been confirmed. To secure flexible fares, select our "No cancel fee" or "Changes included" filter when looking for flights. To learn more about modifying or canceling your reservation, head to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.