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£125 Cheap Flights from San Francisco (SFO) to Philadelphia (PHL)

View £125 flight on Mon, 14 Sept 2026Opens in a new window

Flight 1

Popular airlines from San Francisco International Airport (SFO) to Philadelphia International Airport (PHL)

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Cheap Flights from San Francisco (SFO) to Philadelphia (PHL)

Prices were available within the past 7 days and start at £125 for one-way flights and £267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, 21 Sept - Mon, 28 Sept
SFO
San Francisco
PHL
Philadelphia
£267 Return, found 12 hours ago
£267
Return
found 12 hours ago
Select Alaska Airlines flight, departing Mon, 21 Sept from San Francisco to Philadelphia, returning Mon, 28 Sept, priced at £267 found 12 hours ago
Alaska Airlines
Mon, 21 Sept - Mon, 28 Sept
SFO
San Francisco
PHL
Philadelphia
£276 Return, found 12 hours ago
£276
Return
found 12 hours ago
Select Alaska Airlines flight, departing Mon, 21 Sept from San Francisco to Philadelphia, returning Mon, 28 Sept, priced at £276 found 12 hours ago
Alaska Airlines
Mon, 14 Sept - Fri, 18 Sept
SFO
San Francisco
PHL
Philadelphia
£282 Return, found 1 day ago
£282
Return
found 1 day ago
Select Alaska Airlines flight, departing Mon, 14 Sept from San Francisco to Philadelphia, returning Fri, 18 Sept, priced at £282 found 1 day ago
JetBlue Airways
Mon, 21 Sept - Mon, 28 Sept
SFO
San Francisco
PHL
Philadelphia
£283 Return, found 12 hours ago
£283
Return
found 12 hours ago
Select JetBlue Airways flight, departing Mon, 21 Sept from San Francisco to Philadelphia, returning Mon, 28 Sept, priced at £283 found 12 hours ago
Alaska Airlines
Wed, 7 Oct - Fri, 16 Oct
SFO
San Francisco
PHL
Philadelphia
£284 Return, found 5 days ago
£284
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 7 Oct from San Francisco to Philadelphia, returning Fri, 16 Oct, priced at £284 found 5 days ago
JetBlue Airways
Thu, 10 Sept - Wed, 16 Sept
SFO
San Francisco
PHL
Philadelphia
£285 Return, found 4 days ago
£285
Return
found 4 days ago
Select JetBlue Airways flight, departing Thu, 10 Sept from San Francisco to Philadelphia, returning Wed, 16 Sept, priced at £285 found 4 days ago
Alaska Airlines
Wed, 7 Oct - Fri, 16 Oct
SFO
San Francisco
PHL
Philadelphia
£291 Return, found 5 days ago
£291
Return
found 5 days ago
Select Alaska Airlines flight, departing Wed, 7 Oct from San Francisco to Philadelphia, returning Fri, 16 Oct, priced at £291 found 5 days ago
JetBlue Airways
Mon, 21 Sept - Mon, 28 Sept
SFO
San Francisco
PHL
Philadelphia
£292 Return, found 12 hours ago
£292
Return
found 12 hours ago
Select JetBlue Airways flight, departing Mon, 21 Sept from San Francisco to Philadelphia, returning Mon, 28 Sept, priced at £292 found 12 hours ago
JetBlue Airways
Fri, 2 Oct - Mon, 5 Oct
SFO
San Francisco
PHL
Philadelphia
£294 Return, found 1 day ago
£294
Return
found 1 day ago
Select JetBlue Airways flight, departing Fri, 2 Oct from San Francisco to Philadelphia, returning Mon, 5 Oct, priced at £294 found 1 day ago
JetBlue Airways
Thu, 10 Sept - Wed, 16 Sept
SFO
San Francisco
PHL
Philadelphia
£294 Return, found 4 days ago
£294
Return
found 4 days ago
Select JetBlue Airways flight, departing Thu, 10 Sept from San Francisco to Philadelphia, returning Wed, 16 Sept, priced at £294 found 4 days ago

Find the cheapest month to fly from San Francisco (SFO) to Philadelphia (PHL)

September is typically the cheapest month to fly

From £174 - £185 per traveller.

Frequently asked questions

How much does a flight from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) cost?
You can find one-way and return flights from MAN to GDZ with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SFO to PHL ticket fares go up or down.
What is the cheapest month to fly from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
September is typically the cheapest month to fly from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.), with average return fares around £290. September often sees lower prices because it falls after the peak summer travel season, when demand tends to decrease. Other budget-friendly months to fly from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) include August and October.
Which airlines fly direct from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
There are 2 airlines offering direct flights from San Francisco Intl. (SFO) to Philadelphia Intl. (PHL). Here are the carriers:
  • American Airlines operates 38 direct flights from SFO to PHL every week.
  • United operates 25 direct flights from SFO to PHL every week.
How do I find cheap flights from San Francisco, CA (SFO) to Philadelphia, PA (PHL)?
To find a cheap flight from San Francisco, CA (SFO) to Philadelphia, PA (PHL), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. American Airlines offers the most daily flights from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from San Francisco, CA (SFO) to Philadelphia, PA (PHL)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
The earliest flight from San Francisco International Airport (SFO) to Philadelphia International Airport (PHL) typically departs around 12:05 AM local time, operated by Delta. This is a seasonal service active in May. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.)?
If you're flying from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.), a nonstop flight typically takes around 5 hours 30 minutes. This route covers a distance of approximately 4,049 kilometers. If you opt for a flight with one stop, your journey will generally be longer, taking about 7 hours 48 minutes. Flights with two or more stops will extend your travel time further, usually to around 10 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from San Francisco, CA (SFO) to Philadelphia, PA (PHL)?
Select the "Business class" and "First class" filters when looking for San Francisco, CA (SFO) to Philadelphia, PA (PHL) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight with Expedia?
It's easy to earn miles on a San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Philadelphia, PA (PHL) from San Francisco, CA (SFO)?
If you're planning to travel to Philadelphia from San Francisco Intl. (SFO), you can fly directly into Philadelphia Intl. (PHL). Some flights may connect through major hubs like Portland Intl. (PDX), Los Angeles Intl. (LAX), or San Diego Intl. (SAN) before reaching Philadelphia. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) at the last minute?
Typically, booking a last minute flight from San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight and hotel package?
Securing a San Francisco, CA (SFO-San Francisco Intl.) to Philadelphia, PA (PHL-Philadelphia Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Francisco, CA (SFO) to Philadelphia, PA (PHL)?
If you booked your San Francisco, CA (SFO) to Philadelphia, PA (PHL) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Philadelphia Intl.
Airlines serving
Alaska Airlines, JetBlue Airways
Return price
£266
Distance
4025 km
Average flight time
8 hours 35 mins

Book with confidence

Compare flights from San Francisco to Philadelphia easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Francisco to Philadelphia. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Philadelphia Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Francisco Intl. to Philadelphia Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Francisco Intl. (SFO) to Philadelphia Intl. (PHL)

The easiest way to view the best deals on flights from San Francisco to Philadelphia today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Francisco Intl. to Philadelphia Intl. start at just £267 and range up to £294.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Francisco and Philadelphia
  • booking your flight during September, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Francisco to Philadelphia flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Francisco Intl. to Philadelphia Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from San Francisco to Philadelphia easily and book with confidence

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*Available to Expedia members.