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Cheap flights from San Francisco to Philadelphia from £139

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — PHL
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to Philadelphia

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Philadelphia
Explore the most affordable flight options available from San Francisco to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 March 2026.

Sat 25/405:40
SFO
-
PHL
2 stops9h 55m
Southwest
Sat 2/507:45
PHL
-
SFO
2 stops10h 40m
Southwest
Deal found 27/3£226
Wed 22/405:55
SFO
-
PHL
2 stops8h 55m
Southwest
Wed 29/414:00
PHL
-
SFO
2 stops11h 10m
Southwest
Deal found 26/3£238
Mon 21/915:04
SFO
-
PHL
1 stop22h 02m
Alaska Airlines
Sat 26/917:15
PHL
-
SFO
1 stop9h 24m
Alaska Airlines
Deal found 27/3£248
Wed 3/611:25
SFO
-
PHL
2 stops9h 30m
Southwest
Mon 8/605:00
PHL
-
SFO
2 stops10h 00m
Southwest
Deal found 26/3£256
Wed 23/912:32
SFO
-
PHL
Nonstop5h 30m
United Airlines
Tue 29/906:10
PHL
-
SFO
Nonstop6h 18m
United Airlines
Deal found 27/3£263
Sat 25/408:40
SFO
-
PHL
Nonstop5h 35m
United Airlines
Sat 2/509:55
PHL
-
SFO
1 stop10h 46m
United Airlines
Deal found 26/3£268
Tue 5/505:55
SFO
-
PHL
2 stops8h 55m
Southwest
Tue 26/514:00
PHL
-
SFO
2 stops11h 05m
Southwest
Deal found 26/3£268
Tue 28/408:55
SFO
-
PHL
2 stops10h 05m
Southwest
Fri 1/518:00
PHL
-
SFO
1 stop9h 20m
Southwest
Deal found 25/3£270
Thu 21/523:20
SFO
-
PHL
Nonstop5h 30m
United Airlines
Mon 25/519:45
PHL
-
SFO
1 stop8h 30m
United Airlines
Deal found 28/3£273
Fri 19/617:25
SFO
-
PHL
1 stop9h 43m
Delta
Fri 10/716:08
PHL
-
SFO
1 stop9h 41m
Delta
Deal found 30/3£278

Find flight deals from San Francisco to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 March 2026.

Round-trip from

£226

One-way from

£139

Popular in

December

Cheapest in

February

Average price

£330
Southwest
  • Southwest
  • 25/4-2/5
  • 4 total stops
  • 20h 35m total
  • San Francisco to Philadelphia
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 23/9
  • 1 total stop
  • 9h 43m total
  • San Francisco to Philadelphia
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£31 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 30 March 2026.
Use the filters below to find and compare flights from San Francisco to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Thu 16/4

11:10-00:35

2 stops10h 25m

Philadelphia

Tue 21/4

16:00-22:45

2 stops9h 45m

£256
Fastest return journey

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Tue 28/4

08:40-17:15

Nonstop5h 35m

Philadelphia

Sat 2/5

09:30-12:48

Nonstop6h 18m

£263

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 27/5

00:45-11:58

1 stop8h 13m

Philadelphia

Sun 31/5

06:00-08:58

Nonstop5h 58m

£271

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 22/5

18:56-05:31

1 stop7h 35m

Philadelphia

Tue 26/5

06:00-08:58

Nonstop5h 58m

£296

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Mon 15/6

19:23-06:08

1 stop7h 45m

Philadelphia

Fri 3/7

06:05-10:29

1 stop7h 24m

£312

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Sat 11/4

08:40-17:15

Nonstop5h 35m

Philadelphia

Tue 14/4

06:12-09:30

Nonstop6h 18m

£323

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 29/4

05:55-17:50

2 stops8h 55m

Philadelphia

Fri 1/5

13:35-21:10

2 stops10h 35m

£326

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Thu 9/7

17:30-05:31

1 stop9h 01m

Philadelphia

Wed 22/7

09:25-12:34

Nonstop6h 09m

£351

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 17/6

18:56-05:31

1 stop7h 35m

Philadelphia

Thu 2/7

09:25-12:34

Nonstop6h 09m

£354

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Sat 20/6

18:56-05:31

1 stop7h 35m

Philadelphia

Wed 8/7

18:23-21:33

Nonstop6h 10m

£354

Flights are sorted by cheapest return flights first.

Deals found on 28/3

Showing 1-10 of 22 resultsSorted by cheapest first
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2
3

Best time to book a flight from San Francisco to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from San Francisco with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Philadelphia

How far ahead should I book a flight from San Francisco to Philadelphia?

Use this chart to determine the optimal time to book a return flight from San Francisco to Philadelphia. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from San Francisco to Philadelphia, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Francisco to Philadelphia?

Currently, July is the cheapest month in which you can book a flight from San Francisco to Philadelphia (average of £90). Flying from San Francisco to Philadelphia in August is currently the most expensive (average of £146). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to PHL?

Find hourly flight availability from San Francisco to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 March 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Philadelphia as you normally would.

How much does it cost for a return flight from San Francisco to Philadelphia?

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated 30 March 2026.
Read through reviews of airlines operating flights from San Francisco to Philadelphia, such as American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.1
Good
11,531 reviews
Check prices

Boarding

7.5

Food

6.4

Crew

7.9

Entertainment

6.9

Overall

7.1

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sept 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.1
Good
11,531 reviews
American Airlines
7.1
Good
11,531 reviews
Check prices

Boarding

7.5

Food

6.4

Crew

7.9

Entertainment

6.9

Overall

7.1

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sept 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Francisco to Philadelphia?

    Booking a flight from San Francisco (SFO) to Philadelphia (PHL) is your only option if you wish to fly from San Francisco to Philadelphia. On a typical day, there are 9 flights from San Francisco to Philadelphia, all of which are around 5h 40m for a nonstop flight. You can also purchase a plane ticket from 1 airline when you book a flight from San Francisco to Philadelphia.

  • How popular is this San Francisco to Philadelphia flight route?

    Within the past month, 1 users have taken a look at flights from San Francisco to Philadelphia.

  • How long is the flight from San Francisco to Philadelphia?

    For as low as £263, United Airlines can have you in Philadelphia from San Francisco in 5h 41m. Airlines will cover a distance of 2513 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What is the cheapest airline to fly from San Francisco to Philadelphia round-trip?

    American Airlines, at £218, was found to be the cheapest airline from San Francisco to Philadelphia.. Users have found that American Airlines is 32% cheaper than the other options available to this destination.

  • What are the most reliable airlines from San Francisco to Philadelphia?

    Consider Aer Lingus (97%), ANA (90%) or American Airlines (89%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Philadelphia.

  • Can I find deals for flights from San Francisco to Philadelphia that include hotel bookings?

    Yes. In addition to deals on San Francisco to Philadelphia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Philadelphia.

  • Can I find deals for business class flights from San Francisco to Philadelphia?

    Yes. Cheapflights offers flight deals from San Francisco to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Philadelphia?

    Currently, July is the cheapest month in which you can book a flight from San Francisco to Philadelphia (average of £90). Flying from San Francisco to Philadelphia in August is currently the most expensive (average of £146). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from San Francisco to Philadelphia

Discover the top airline that operate flights from San Francisco to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 30 March 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest£218Average£263FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco to Philadelphia?

When you search for this flight from San Francisco to Philadelphia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from San Francisco to Philadelphia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Philadelphia from San Francisco.

Can Cheapflights find flights from San Francisco to Philadelphia with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from San Francisco to Philadelphia flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from San Francisco to Philadelphia become cheaper?

Yes, Cheapflights offers price alerts on San Francisco to Philadelphia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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