Cheap Flights from Philadelphia (PHL) to San Francisco (SFO) from HK$1,252~

View HK$1,252 flight on Tue, 12 Aug 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at HK$1,252 for one-way flights and HK$2,428 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$2,428 Return, found 1 day ago
HK$2,428
Return
found 1 day ago
Select Delta flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$2,428 found 1 day ago
Delta
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$2,600 Return, found 1 day ago
HK$2,600
Return
found 1 day ago
Select Delta flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$2,600 found 1 day ago
Delta
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$2,944 Return, found 1 day ago
HK$2,944
Return
found 1 day ago
Select Delta flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$2,944 found 1 day ago
Delta
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$3,116 Return, found 1 day ago
HK$3,116
Return
found 1 day ago
Select Delta flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$3,116 found 1 day ago
United
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$3,136 Return, found 1 day ago
HK$3,136
Return
found 1 day ago
Select United flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$3,136 found 1 day ago
Delta
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$3,213 Return, found 1 day ago
HK$3,213
Return
found 1 day ago
Select Delta flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$3,213 found 1 day ago
American Airlines
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$3,295 Return, found 1 day ago
HK$3,295
Return
found 1 day ago
Select American Airlines flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$3,295 found 1 day ago
American Airlines
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$3,308 Return, found 1 day ago
HK$3,308
Return
found 1 day ago
Select American Airlines flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$3,308 found 1 day ago
Delta
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$3,331 Return, found 1 day ago
HK$3,331
Return
found 1 day ago
Select Delta flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$3,331 found 1 day ago
American Airlines
Fri, 15 Aug - Sat, 16 Aug
PHL
Philadelphia
SFO
San Francisco
HK$3,372 Return, found 1 day ago
HK$3,372
Return
found 1 day ago
Select American Airlines flight, departing Fri, 15 Aug from Philadelphia to San Francisco, returning Sat, 16 Aug, priced at HK$3,372 found 1 day ago

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

April is typically the cheapest month to fly

From HK$1,099 - HK$3,431 per traveller.

Graph displaying average flight prices per month

Philadelphia to San Francisco route information
Origin airport
Philadelphia Intl.
Destination airport
San Francisco Intl.
Airlines serving
American Airlines, Delta, United
Return price
HK$2,428
Distance
4025 km
Average flight time
3 hours 40 mins

Flights from Philadelphia to San Francisco

Book cheap flights from Philadelphia (PHL) to San Francisco (SFO) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Philadelphia (PHL) to San Francisco (SFO) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Philadelphia (PHL) to San Francisco (SFO) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your San Francisco flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in San Francisco and things to do in San Francisco for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to San Francisco more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to San Francisco is HK$1,252 now!

 

Frequently asked questions

How much is a flight from Philadelphia Airport to SFO?
Round-trip tickets between PHL and San Francisco Intl. Airport (SFO) start from HK$2,428. This is based on fares offered within the last 7 days on Expedia for flights departing within the next year --- book now so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Philadelphia Airport to San Francisco Airport?
We get that your situation can change unexpectedly, so we've made it as easy as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Philadelphia Intl. Airport (PHL) to SFO that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Philadelphia Intl. Airport (PHL) to San Francisco Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Philadelphia Intl. Airport (PHL) to San Francisco Intl. Airport (SFO)?
Philadelphia to San Francisco is around 4,100 kilometers, so get ready to spend a while in the air. Make sure you pack all the essentials, from your eye mask to your earphones. Take a few snacks to nibble on throughout your flight too.
Which airlines fly direct from PHL to SFO?
American Airlines (AA) is the preferred option for many travelers. It operates 65 flights between Philadelphia Airport and SFO each month. You could also take a look at fares with United Airlines (UA). It operates 30 flights a month between Philadelphia and San Francisco.
Are PHL to SFO flight tickets cheaper when they're purchased at the last minute?
Flight prices are constantly going up and down, so not always. While last-minute flight deals between Philadelphia Intl. Airport (PHL) and San Francisco Intl. Airport (SFO) are possible, it also makes sense to keep track of prices well before you fly. In fact, some carriers advertise their prices up to a year ahead of the departure date. Expedia is constantly updating the best airfare bargains around, so check back often and be ready to book when prices drop.

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