What is the cheapest airline that flies from Philadelphia to San Francisco?

Southwest, Frontier, and JetBlue are the most popular carriers operating from Philadelphia to San Francisco

How many flights depart from Philadelphia to San Francisco on average per day?

As of August 2025, 8 flights take off from Philadelphia and land in San Francisco each day. The most common flight departure time for this route is 6:00AM, with 50% of daily flights taking off at noon.

What airlines fly to San Francisco?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to San Francisco from Philadelphia according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 10 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest travel time from Philadelphia to San Francisco?

Flights connecting via Las Vegas (LAS) have the shortest average one-way travel time: 8h 07m.

Which layover airport has the shortest connection time from Philadelphia to San Francisco?

Las Vegas (LAS) has the shortest average layover time for this route: 1h 09m.

Which airport is the most popular layover for flights between Philadelphia and San Francisco?

Atlanta (ATL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

How many flights depart from Philadelphia to San Francisco on average per week?

The number of flights available between Philadelphia and San Francisco is 61 per week as of August 2025. The most frequent departure day is Tue, with 33% of weekly flights leaving on this day.

Which layover airport offers the lowest fares from Philadelphia to San Francisco?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $330.

When did momondo last update prices for flights from Philadelphia Airport to San Francisco Airport?

Prices for flights from Philadelphia Airport to San Francisco Airport refresh daily.

How many operators does momondo search for flights from Philadelphia Airport to San Francisco Airport?

The number of operators available for flights from Philadelphia Airport to San Francisco Airport is 7 as of August 2025.

How old do you have to be to fly from Philadelphia Airport to San Francisco Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$103 Cheap Flights from Philadelphia to San Francisco (PHL-SFO) in 2025

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Find the cheapest flights from Philadelphia to San Francisco (PHL-SFO)

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

4:10 pm - 9:35 pmPHL-SFO

8h 25m1 stop

11:25 am - 9:50 pmSFO-PHL

7h 25m1 stop

$206Southwest

Find Deal

Sat, Sep 20 - Tue, Sep 23

11:40 am - 6:35 pmPHL-SFO

9h 55m2 stops

6:10 am - 5:15 pmSFO-PHL

8h 05m1 stop

$211Southwest

Find Deal

Wed, Dec 10 - Tue, Dec 16

12:45 pm - 9:03 pmPHL-SFO

11h 18m1 stop

7:10 am - 11:43 pmSFO-PHL

13h 33m1 stop

$258Frontier

Find Deal

Sat, Aug 30 - Wed, Sep 10

6:45 am - 10:30 pmPHL-SFO

18h 45m1 stop

11:00 pm - 10:56 amSFO-PHL

8h 56m1 stop

$260Frontier

Find Deal

Sat, Sep 27 - Sat, Oct 4

5:00 pm - 10:51 pmPHL-SFO

8h 51m1 stop

10:59 pm - 10:30 amSFO-PHL

8h 31m1 stop

$277Delta

Find Deal

Fri, Aug 29 - Mon, Sep 8

6:45 pm - 10:02 pmPHL-SFO

6h 17mnonstop

11:25 pm - 1:01 pmSFO-PHL

10h 36m1 stop

$282American Airlines

Find Deal

Wed, Sep 3 - Wed, Sep 10

7:00 am - 2:47 pmPHL-SFO

10h 47m1 stop

11:45 am - 11:43 pmSFO-PHL

8h 58m1 stop

$293Delta

Find Deal

Mon, Nov 24 - Tue, Dec 2

8:15 pm - 11:18 pmPHL-SFO

6h 03mnonstop

6:00 am - 7:55 pmSFO-PHL

10h 55m1 stop

$295American Airlines

Find Deal

Tue, Sep 2 - Tue, Sep 9

6:30 am - 9:32 amPHL-SFO

6h 02mnonstop

10:45 pm - 9:33 amSFO-PHL

7h 48m1 stop

$299United Airlines

Find Deal

Fri, Aug 29 - Sun, Sep 7

6:27 pm - 11:14 pmPHL-SFO

7h 47m1 stop

12:43 am - 11:59 amSFO-PHL

8h 16m1 stop

$303United Airlines

Find Deal

Fri, Sep 5 - Fri, Sep 5

Southwest flights from Philadelphia to San Francisco

Our best Southwest deals on Philadelphia to San Francisco flight tickets

Southwest

Sep 20

PHL4:10 pmPhiladelphia

8h 25m

1 stop

SFO9:35 pmSan Francisco

Sep 23

SFO11:25 amSan Francisco

7h 25m

1 stop

PHL9:50 pmPhiladelphia

$206

Find similar

Southwest

Dec 10

PHL11:40 amPhiladelphia

9h 55m

2 stops

SFO6:35 pmSan Francisco

Dec 16

SFO6:10 amSan Francisco

8h 05m

1 stop

PHL5:15 pmPhiladelphia

$211

Find similar

Southwest

Dec 10

PHL11:40 amPhiladelphia

9h 55m

2 stops

SFO6:35 pmSan Francisco

Dec 16

SFO9:25 amSan Francisco

8h 50m

2 stops

PHL9:15 pmPhiladelphia

$216

Find similar

JetBlue flights from Philadelphia to San Francisco

Our best JetBlue deals on Philadelphia to San Francisco flight tickets

JetBlue

Oct 2

PHL3:55 pmPhiladelphia

11h 04m

1 stop

SFO11:59 pmSan Francisco

Oct 20

SFO10:15 pmSan Francisco

9h 35m

1 stop

PHL10:50 amPhiladelphia

$247

Find similar

JetBlue

Aug 26

PHL5:40 pmPhiladelphia

10h 18m

1 stop

SFO12:58 amSan Francisco

Sep 2

SFO8:44 pmSan Francisco

11h 21m

1 stop

PHL11:05 amPhiladelphia

$252

Find similar

JetBlue

Aug 25

PHL5:40 pmPhiladelphia

10h 18m

1 stop

SFO12:58 amSan Francisco

Sep 2

SFO8:44 pmSan Francisco

11h 21m

1 stop

PHL11:05 amPhiladelphia

$264

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 9/20

4:10 pm-9:35 pm

1 stop8h 25m

San Francisco

Tue 9/23

11:25 am-9:50 pm

1 stop7h 25m

$206

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 12/10

11:40 am-6:35 pm

2 stops9h 55m

San Francisco

Tue 12/16

6:10 am-5:15 pm

1 stop8h 05m

$211

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 8/30

12:45 pm-9:03 pm

1 stop11h 18m

San Francisco

Wed 9/10

7:10 am-11:43 pm

1 stop13h 33m

$258

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 9/27

6:45 am-10:30 pm

1 stop18h 45m

San Francisco

Sat 10/4

11:00 pm-10:56 am

1 stop8h 56m

$260

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 8/29

5:00 pm-10:51 pm

1 stop8h 51m

San Francisco

Mon 9/8

10:59 pm-10:30 am

1 stop8h 31m

$277

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 9/3

6:45 pm-10:02 pm

Nonstop6h 17m

San Francisco

Wed 9/10

11:25 pm-1:01 pm

1 stop10h 36m

$282

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Mon 11/24

7:00 am-2:47 pm

1 stop10h 47m

San Francisco

Tue 12/2

11:45 am-11:43 pm

1 stop8h 58m

$293

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 9/2

8:15 pm-11:18 pm

Nonstop6h 03m

San Francisco

Tue 9/9

6:00 am-7:55 pm

1 stop10h 55m

$295

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 8/29

6:30 am-9:32 am

Nonstop6h 02m

San Francisco

Sun 9/7

10:45 pm-9:33 am

1 stop7h 48m

$299

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 9/5

6:27 pm-11:14 pm

1 stop7h 47m

San Francisco

Fri 9/5

12:43 am-11:59 am

1 stop8h 16m

$303

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Philadelphia to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $367.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Philadelphia to San Francisco is on a Wednesday when prices can be found for as low as $413. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $594.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Philadelphia to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $317. Flights in the afternoon are often more expensive with an average ticket price of $471.

What is the cheapest Philadelphia to San Francisco flight route?

Fly from Philadelphia to San Francisco for the best Philadelphia - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $395 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Philadelphia for as low as $340 on momondo.

What cabin class options are available on Philadelphia to San Francisco flights?

There are 4 cabin classes available to choose from on Philadelphia to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to San Francisco flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to San Francisco.

How have Philadelphia to San Francisco flight prices changed over time?

As of August 2025, prices for Philadelphia to San Francisco flights are approximately 12% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Philadelphia to San Francisco according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Philadelphia to San Francisco (PHL to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to San Francisco

Best Price Found	$103
Fastest flight time	6h 02m
Direct flights	Every day
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from Philadelphia in the past 72 hours is $103. The best round-trip flight deal from Philadelphia to San Francisco found on momondo in the last 72 hours is $206.

The fastest flight from Philadelphia to San Francisco takes 6h 02m

Direct flights go from Philadelphia to San Francisco every day.

There is 1 airport near San Francisco: San Francisco (SFO)

Search flight deals

How far is Philadelphia to San Francisco by plane?
A flight from Philadelphia to San Francisco will travel around 2514.9 mi. 6h 02m is a normal flight duration for this route.
When did momondo last update prices for flights from Philadelphia Airport to San Francisco Airport?
Prices for flights from Philadelphia Airport to San Francisco Airport refresh daily.
How many operators does momondo search for flights from Philadelphia Airport to San Francisco Airport?
The number of operators available for flights from Philadelphia Airport to San Francisco Airport is 7 as of August 2025.
How old do you have to be to fly from Philadelphia Airport to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Philadelphia to San Francisco?
Based on momondo bookings for flights between Philadelphia and San Francisco, the leading plane model is Boeing 737 MAX 8, making up 45.44% of the total bookings. Other popular models include Boeing 737-900 with 32.82%, Boeing 737-800 with 6.90%, and Airbus A321neo with 4.61%.
What is the most popular airline from Philadelphia to San Francisco?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Philadelphia to San Francisco is American Airlines (71% of total bookings). The next most popular airlines are United Airlines (21%), Frontier (4%), and Delta (2%).

Best airlines flying from Philadelphia to San Francisco

Compare and see reviews for airlines that fly from Philadelphia to San Francisco with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $122	Free Cancellation	Rating 6.3 8,054 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $135	Free Cancellation	Rating 5.8 3,232 reviews	Search Frontier flights
JetBlue	PriceFrom $136	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
Southwest	PriceFrom $248	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
American Airlines	PriceFrom $260	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $276	Free Cancellation	Rating 8.0 7,987 reviews	Search Delta flights
United Airlines	PriceFrom $281	Free Cancellation	Rating 7.4 8,915 reviews	Search United Airlines flights

United Airlines Flights From Philadelphia to San Francisco
United Airlines operates around 10 flights from Philadelphia to San Francisco every week. The average price of these flights found in the last 72 hours has been $424, but momondo users have found United Airlines deals from Philadelphia to San Francisco from as low as $281 round-trip. United Airlines has been scored 7.4/10 in 8,915 reviews.
American Airlines Flights From Philadelphia to San Francisco
Across 10,000 American Airlines reviews on momondo, the average score is 7.2/10. American Airlines flies from Philadelphia to San Francisco about 6 times each week, with ticket deals ranging from $260 to $398. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to San Francisco?

Finding the right flight to San Francisco from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

Can I find flights from Philadelphia to San Francisco with flexible booking policies on momondo?

Flights from Philadelphia to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Philadelphia to San Francisco?

Once all potential Philadelphia to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Philadelphia to San Francisco right now. Can momondo alert me if prices change?

Price alerts on flights to San Francisco from Philadelphia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Cheap flights from Philadelphia to San Francisco from $103

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to San Francisco departing on 9/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Find the cheapest flights from Philadelphia to San Francisco (PHL-SFO)

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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Southwest flights from Philadelphia to San Francisco

Our best Southwest deals on Philadelphia to San Francisco flight tickets

JetBlue flights from Philadelphia to San Francisco

Our best JetBlue deals on Philadelphia to San Francisco flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Philadelphia to San Francisco that are best for you.

See travel insights to San Francisco from

How to get the cheapest flight ticket from Philadelphia to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $367.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Philadelphia to San Francisco is on a Wednesday when prices can be found for as low as $413. The most expensive day to fly to San Francisco is Monday, with ticket prices averaging around $594.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Philadelphia to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $317. Flights in the afternoon are often more expensive with an average ticket price of $471.

What is the cheapest Philadelphia to San Francisco flight route?

Fly from Philadelphia to San Francisco for the best Philadelphia - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

What cabin class options are available on Philadelphia to San Francisco flights?

There are 4 cabin classes available to choose from on Philadelphia to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Philadelphia to San Francisco flights?

No. A direct flight is the cheapest option for a flight between Philadelphia to San Francisco.

How have Philadelphia to San Francisco flight prices changed over time?

As of August 2025, prices for Philadelphia to San Francisco flights are approximately 12% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Philadelphia to San Francisco?

Southwest, Frontier, and JetBlue are the most popular carriers operating from Philadelphia to San Francisco

What airlines fly to San Francisco?

Which airport is the most popular layover for flights between Philadelphia and San Francisco?

Atlanta (ATL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Philadelphia to San Francisco?

Flights via Atlanta (ATL) offer the lowest average round-trip price of $330.

Which layover airport has the shortest travel time from Philadelphia to San Francisco?

Flights connecting via Las Vegas (LAS) have the shortest average one-way travel time: 8h 07m.

Which layover airport has the shortest connection time from Philadelphia to San Francisco?

Las Vegas (LAS) has the shortest average layover time for this route: 1h 09m.

How many flights depart from Philadelphia to San Francisco on average per day?

As of August 2025, 8 flights take off from Philadelphia and land in San Francisco each day. The most common flight departure time for this route is 6:00AM, with 50% of daily flights taking off at noon.

How many flights depart from Philadelphia to San Francisco on average per week?

The number of flights available between Philadelphia and San Francisco is 61 per week as of August 2025. The most frequent departure day is Tue, with 33% of weekly flights leaving on this day.

When to book flights from Philadelphia to San Francisco

Cheap Philadelphia to San Francisco (PHL to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to San Francisco

Best Price Found

Fastest flight time

Direct flights

Airports in San Francisco

How far is Philadelphia to San Francisco by plane?

When did momondo last update prices for flights from Philadelphia Airport to San Francisco Airport?

How many operators does momondo search for flights from Philadelphia Airport to San Francisco Airport?

How old do you have to be to fly from Philadelphia Airport to San Francisco Airport?

What documentation or ID do you need to fly to San Francisco Airport?

What is the most popular plane model from Philadelphia to San Francisco?

What is the most popular airline from Philadelphia to San Francisco?

Best airlines flying from Philadelphia to San Francisco

Compare and see reviews for airlines that fly from Philadelphia to San Francisco with momondo

United Airlines Flights From Philadelphia to San Francisco

American Airlines Flights From Philadelphia to San Francisco

Traveling to a place near San Francisco?

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to San Francisco?

Can I find flights from Philadelphia to San Francisco with flexible booking policies on momondo?

How can momondo help me find flights from Philadelphia to San Francisco?

I’m not ready to book a flight from Philadelphia to San Francisco right now. Can momondo alert me if prices change?

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.