151 € Philadelphia (PHLA) to San Francisco International (SFO) Cheap Flights

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Flight deals from Philadelphia to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Philadelphia to San Francisco International? Find the lowest prices on one-way and return tickets right here.

San Francisco.151 € per passenger.Departing Sat, 1 Nov, returning Mon, 3 Nov.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Sat, 1 Nov, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Mon, 3 Nov, arriving in Philadelphia International.Price includes taxes and charges.From 151 €, select.

San Francisco.151 € per passenger.Departing Thu, 23 Oct, returning Mon, 27 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Thu, 23 Oct, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Mon, 27 Oct, arriving in Philadelphia International.Price includes taxes and charges.From 151 €, select.

San Francisco.152 € per passenger.Departing Thu, 30 Oct, returning Mon, 3 Nov.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Thu, 30 Oct, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Mon, 3 Nov, arriving in Philadelphia International.Price includes taxes and charges.From 152 €, select.

San Francisco.210 € per passenger.Departing Mon, 8 Dec, returning Thu, 11 Dec.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 8 Dec, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Thu, 11 Dec, arriving in Philadelphia International.Price includes taxes and charges.From 210 €, select.

San Francisco.233 € per passenger.Departing Tue, 21 Oct, returning Fri, 31 Oct.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Tue, 21 Oct, arriving in San Francisco International.Inbound direct flight with United departs from San Francisco International on Fri, 31 Oct, arriving in Philadelphia International.Price includes taxes and charges.From 233 €, select.

San Francisco.233 € per passenger.Departing Sat, 1 Nov, returning Wed, 5 Nov.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Sat, 1 Nov, arriving in San Francisco International.Inbound direct flight with United departs from San Francisco International on Wed, 5 Nov, arriving in Philadelphia International.Price includes taxes and charges.From 233 €, select.

San Francisco.233 € per passenger.Departing Wed, 22 Oct, returning Sat, 1 Nov.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Wed, 22 Oct, arriving in San Francisco International.Inbound direct flight with United departs from San Francisco International on Sat, 1 Nov, arriving in Philadelphia International.Price includes taxes and charges.From 233 €, select.

San Francisco.246 € per passenger.Departing Thu, 2 Apr, returning Mon, 6 Apr.Return flight with United.Outbound direct flight with United departs from Philadelphia International on Thu, 2 Apr, arriving in San Francisco International.Inbound direct flight with United departs from San Francisco International on Mon, 6 Apr, arriving in Philadelphia International.Price includes taxes and charges.From 246 €, select.

Find the cheapest month to fly from Philadelphia to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to San Francisco International flights are currently cheapest in October.

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Direct flights from Philadelphia to San Francisco International

Philadelphia to San Francisco International: Alternative routes

Compare routes from Philadelphia to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

Philadelphia to San Francisco: Flight information

The things to know before you go.

Cheapest flight found	151 €
Cheapest month to fly	November
Average flight time	6 hrs, 16 mins
Most popular airline	American Airlines
Average flights per week	180

Finding cheap flights from Philadelphia to San Francisco International: Frequently asked questions

How much are return flights from Philadelphia to San Francisco International?

The best price we found for a return flight from Philadelphia to San Francisco International is 151 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Philadelphia to San Francisco International?

6 hours and 16 minutes is the average flight time from Philadelphia to San Francisco International.

Which airlines fly direct from Philadelphia to San Francisco International?

American Airlines, British Airways and Qatar Airways fly direct from Philadelphia to San Francisco International.

How many flights are there a week from Philadelphia to San Francisco International?

As of October 2025, there are 180 flights per week flying from Philadelphia to San Francisco International.

When is the cheapest time to fly from Philadelphia to San Francisco International?

The cheapest month to fly from Philadelphia to San Francisco International is usually November.

Which upcoming date is cheapest to fly from Philadelphia to San Francisco International Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to San Francisco International Airport on Saturday, 1 November 2025.

Can I get a direct flight from Philadelphia to San Francisco International Airport?

Yes – the average flight time is 6 hours and 16 minutes.

How can I find the best flight deal to San Francisco International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to San Francisco?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Philadelphia to San Francisco International Airport (SFO): What you need to know

Kick off your journey at one of Philadelphia's main airports, Philadelphia International Airport (PHL) or Trenton-Mercer Airport (TTN). Check out your options for booking a flight from Philadelphia to San Francisco International Airport (SFO) leaving from either of these.
Take off on a direct Philadelphia to San Francisco International Airport flight and you'll be travelling for an average of 6 hours 15 minutes.
San Francisco International Airport is located in San Francisco. The city follows the UTC-7 timezone and is three hours behind Philadelphia.
The most popular route is from Philadelphia International Airport (PHL) to San Francisco International Airport (SFO), with 35 direct weekly services. If you want to be on your way right away, the earliest flight from PHL to SFO is the 6am United Airlines option. If a later flight fits your day better, the final departure is at 9pm with American Airlines.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Get to the airport on time to board your flight from Philadelphia to SFO.
With more travellers during high season, it's smart to get to your terminal even earlier. Two hours for domestic flights and up to four for international journeys will help you deal with longer queues.

Airports in Philadelphia

Philadelphia International Airport (PHL)

You can take a direct flight from Philadelphia to San Francisco International Airport (SFO) out of Philadelphia International Airport (PHL).
American Airlines is a popular carrier that operates direct flights from Philadelphia to San Francisco International Airport jetting out of PHL.
The preferred airline for passengers flying between PHL and SFO is American Airlines.
The top on-time carrier on this route is American Airlines. Its services arrive without delay 72.67% of the time.
Located around 19 kilometres from central Philadelphia, PHL can be reached in about 15 minutes by car, depending on traffic. The journey by public transport will take roughly 45 minutes.
Have an early flight from Philadelphia to San Francisco International Airport? Avoid the mad dash to the terminal (and enjoy a little extra shut-eye) by choosing one of these stays close to Philadelphia International Airport:
78.93% of flights taking off from Philadelphia International Airport make it to their destination on schedule.
PHL's address is 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

You can get to TTN from the centre of Philadelphia in approximately 40 minutes by car (depending on traffic). The ride by public transport will take roughly 1 hour 45 minutes to travel the 56 kilometres or so.
Get your holiday started early with an extra night away from home. Before catching your Philadelphia to SFO flight, stay in one of these hotels close to Trenton-Mercer Airport:
Trenton-Mercer Airport has a track record for punctuality. 82.45% of flights leaving here keep to their planned arrival schedule.
The address for TTN is Scotch Road, Terminal Building.

About San Francisco International Airport (SFO)

Consider booking a hotel near SFO if you're catching a late flight from Philadelphia to San Francisco International Airport. Pick one of these options and be in bed in no time flat:
Grab a San Francisco International Airport rental car and explore San Francisco and beyond with your own set of wheels. Dollar, Thrifty and Hertz are top outlets to choose from here.
To get the best deal, book your vehicle around one week ahead of your Philadelphia to San Francisco International Airport flight.

Getting from San Francisco International Airport (SFO) to central San Francisco

San Francisco International Airport to the centre of San Francisco is about 18 kilometres. If you're renting a car or getting a cab, plan in advance to make your trip as easy as possible. Journey times vary based on traffic conditions and the time of day.
If you're travelling by public transport, expect a journey of around 45 minutes.

How to find the cheapest flights from Philadelphia to San Francisco International Airport (SFO)

Currently, 92 € is the lowest price we've found for a one-way ticket from Philadelphia to San Francisco International Airport. The cheapest price for a return flight is 151 €. Keep in mind fares may change due to demand at the time of booking.
Booking ahead of time is often the key to scoring a cheap flight from Philadelphia to SFO. Prices tend to rise as demand increases, so the closer you get to departure, the more it could cost you.
The 'Whole month' tool will show you the cheapest Philadelphia to San Francisco International Airport tickets across each month. It's a great way to snap up a bargain if your travel dates aren't set in stone.
You don't need to check every day to find out if fares have dropped when you create a Price Alert. We'll notify you when a better deal comes up on plane tickets from Philadelphia to SFO.
Filters make it easier to scoop up a deal on your flight from Philadelphia to San Francisco International Airport. Choose the airlines, flight times and stops that line up with your plans. Then sort the results by 'Cheapest' to zero in on the cheapest fare fast.

The best time to fly from Philadelphia to San Francisco International Airport (SFO)

August is the busiest month for flights from Philadelphia to San Francisco International Airport (SFO). Visit San Francisco in February if you'd rather avoid peak season.
The warmest month in San Francisco is September, with temperatures ranging between 12ºC (54ºF) and 22ºC (72ºF). Book your Philadelphia to SFO plane ticket then if that's your ideal forecast.
If you want cooler conditions, look for a cheap ticket from Philadelphia to San Francisco International Airport in January when temperatures are between 6ºC (43ºF) and 16ºC (61ºF).

More about San Francisco

Once you've booked your flight from Philadelphia to San Francisco International Airport, find a hotel that offers the right mix of comfort and location. Make one of these accommodation options your base for exploring San Francisco:
Every great adventure has to include a little sightseeing. Golden Gate Bridge, Painted Ladies - Alamo Square and Alcatraz Island are essential stops on your San Francisco itinerary.

Explore more of the United States

Fresno is just one of the many places in the United States waiting to be discovered once you've seen the sights of San Francisco. Around 257 kilometres away to the east, its top attractions include Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo.
If there's time to check out another great destination in the United States, head for Sacramento, roughly 129 kilometres north-east of San Francisco. Old Sacramento Waterfront, Fright Planet - America's Haunted Theme Park and California State Railroad Museum are the start of reasons to visit.