$149 Cheap United flights San Francisco (SFO) to Philadelphia (PHL)

Finding cheap one-way United Airlines flights from SFO to PHL from $149 on Expedia is simple — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $243 for your next adventure.**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.

January is one of the least expensive months to get away to Philadelphia with United Airlines. You could also find fantastic deals on one-way and round-trip fares in February.

Begin your search one to three months ahead of your travel date to get cheaper fares on United Airlines flights from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL). 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 the timing right, 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.

Skip the layovers and fly from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL) on one of United Airlines’s 7 direct weekly flights. Apply Expedia’s “Nonstop” and “Airline” filters to find the United Airlines flight that’ll get you to PHL at a time that suits you.

It takes approximately 5h 29m to fly nonstop from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL) with United Airlines.

Leaving SFO at 8:48AM UTC-8, the first United Airlines flight to PHL lands at 5:18PM UTC-5. Flying early means you’ll be less likely to experience delays.* Not a morning person? The last United Airlines flight from SFO to PHL departs at 8:50AM UTC-8 and touches down at 5:20PM UTC-5.*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.

United Airlines flights from San Francisco Intl. Airport (SFO) to Philadelphia touch down at Philadelphia Intl. Airport (PHL). This is the main gateway to this destination.

Fly from SFO to PHL with United Airlines and enjoy a host of benefits including a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to spend on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely be on a Boeing 737 MAX 8 or a Boeing 737 MAX 9 when flying United Airlines from San Francisco Intl. Airport (SFO) to Philadelphia Intl. Airport (PHL). However, keep in mind that a different plane may be used due to operational demands.

It’s generally possible to modify or cancel your flight, although there may be additional charges if your booking was made over 24 hours ago. Need to keep your options open? Use our “No cancel fee” or “Changes included” filter to find flights that won’t penalize you if you have to adjust your plans. To make modifications, visit “Trips,” select your flight and click on “Manage Booking” for further information.