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$115+ Cheap flights from Philadelphia to San Francisco (PHL - SFO)

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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SFO
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Philadelphia to San Francisco are usually found in September or January, booked 87 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Philadelphia to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to San Francisco (SFO). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$256
(Frontier)

One-way from

$115
(American Airlines)

Popular in

June

Cheapest in

September

Average price

$389

Good round-trip deal

$339 or less

Good one-way deal

$170 or less
Provider with most accurate pricing for Philadelphia-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-San Francisco flights.
Search Deals
From Philadelphia to San Francisco
Search Deals
One-way flight from Philadelphia to San Francisco
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Philadelphia to San Francisco.
Search Deals
Price to beat on a one-way flight from Philadelphia to San Francisco.
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Find flight deals from Philadelphia to San Francisco

Cheapest flights from Philadelphia to San Francisco
Explore the most affordable flight options available from Philadelphia to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Frontier deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/212:31 pmPHL - SFO
1 stop13h 44mFrontier
Tue 3/43:30 pmSFO - PHL
1 stop11h 44mFrontier
Deal found 2/20$256
This American Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/197:30 pmPHL - SFO
Nonstop6h 22mAmerican Airlines
Mon 3/3111:00 pmSFO - PHL
Nonstop5h 21mAmerican Airlines
Deal found 2/20$259
This United Airlines deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/246:12 amPHL - SFO
Nonstop6h 33mUnited Airlines
Mon 4/1412:08 amSFO - PHL
1 stop7h 30mUnited Airlines
Deal found 2/19$270
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/167:05 amPHL - SFO
1 stop8h 30mDelta
Mon 4/2112:47 amSFO - PHL
1 stop6h 49mDelta
Deal found 2/20$277
This Mytrip deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/285:41 pmPHL - SFO
2 stops31h 00mMultiple Airlines
Tue 3/46:00 amSFO - PHL
3 stops23h 46mMultiple Airlines
Deal found 2/19$292
This Southwest deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/68:05 amPHL - SFO
1 stop10h 55mSouthwest
Sat 5/109:00 amSFO - PHL
2 stops9h 15mSouthwest
Deal found 2/20$325
This Sun Country Air deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/212:05 pmPHL - SFO
1 stop13h 45mSun Country Air
Sun 7/611:59 pmSFO - PHL
1 stop8h 11mSun Country Air
Deal found 2/20$375
This Alaska Airlines deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/257:20 amPHL - SFO
2 stops17h 01mAlaska Airlines
Mon 3/316:10 pmSFO - PHL
1 stop8h 50mAlaska Airlines
Deal found 2/20$381

Find flights from Philadelphia to San Francisco within your budget

Customize your flight search to find flights from Philadelphia to San Francisco 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 2,558,603 searches. Data last updated February 20, 2025.

Fly from

Philadelphia

Fly to

San Francisco

Route

Depart

Return

Price

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sun 3/2

12:31 pm-11:15 pm

1 stop13h 44m

San Francisco

Sun 3/9

8:19 pm-6:30 am

1 stop7h 11m

$256

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 3/22

6:05 pm-9:27 pm

Nonstop6h 22m

San Francisco

Mon 3/24

11:00 pm-7:21 am

Nonstop5h 21m

$259

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 3/25

12:00 pm-7:07 pm

1 stop10h 07m

San Francisco

Sun 3/30

9:07 pm-5:35 am

Nonstop5h 28m

$269

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 4/8

6:00 am-11:11 am

1 stop8h 11m

San Francisco

Mon 4/14

12:47 am-1:53 pm

1 stop10h 06m

$277

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 3/5

10:12 am-7:24 pm

1 stop12h 12m

San Francisco

Wed 3/12

8:00 am-10:02 pm

1 stop11h 02m

$286

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 3/29

6:00 am-11:01 pm

2 stops20h 01m

San Francisco

Sat 4/5

4:49 pm-6:05 am

1 stop10h 16m

$310

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 4/15

2:40 pm-8:55 pm

2 stops9h 15m

San Francisco

Tue 4/22

10:40 am-10:10 pm

1 stop8h 30m

$314

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Mon 8/4

12:05 pm-10:50 pm

1 stop13h 45m

San Francisco

Wed 8/6

11:59 pm-11:10 am

1 stop8h 11m

$325

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 3/26

7:20 am-6:43 pm

2 stops14h 23m

San Francisco

Tue 4/8

2:39 pm-6:00 am

1 stop12h 21m

$342

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 4/16

7:10 pm-10:36 pm

Nonstop6h 26m

$115

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 18 results
1
2

Compare providers for flights from Philadelphia to San Francisco

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Philadelphia to San Francisco in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
GotogatePrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Philadelphia-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Philadelphia to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Philadelphia with our price prediction graph.
Estimated round-trip 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.

Travel insights for flights from Philadelphia to San Francisco

Get recent, data-driven insights about flights from Philadelphia to San Francisco including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to San Francisco. Price data was last updated on February 14, 2025.

The price you pay for your flight from Philadelphia to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Philadelphia to San Francisco (average of $276). Flying from Philadelphia to San Francisco in June is currently the most expensive (average of $403). 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 PHL to SFO?

Find hourly flight availability from Philadelphia to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

It’s typically best to fly out from Philadelphia to San Francisco at noon. Doing so could potentially save you 37% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Philadelphia to San Francisco?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to San Francisco. Price data was last updated on February 16, 2025.

Travelers seeking maximum savings on their Philadelphia to San Francisco flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Philadelphia to San Francisco

Explore weekly flight availability from Philadelphia to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 20, 2025.

The most flights from PHL to SFO are scheduled on a Thursday (12 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated February 20, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from Philadelphia to San Francisco by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Boarding

8.2

Comfort

8.1

Food

7.1

Overall

8.1

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to San Francisco. 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 Philadelphia to San Francisco?

    You will need to book a flight from Philadelphia to San Francisco if you want to fly from Philadelphia to San Francisco. At least 8 different airlines have flights from Philadelphia (PHL) to San Francisco (SFO) on a regular basis. There are 9 flights to San Francisco from the Philadelphia airport per day. If you manage to book one that is nonstop, then you can expect the flight time from PHL to SFO to be around 6h 00m.

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

    The Philadelphia to San Francisco flight path was viewed by 31 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines flying from Philadelphia to San Francisco round-trip?

    Flying on Frontier is currently your cheapest option to San Francisco, with prices starting at $256. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $259 and $269, respectively. These flights start at 37% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to San Francisco one-way?

    $115 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Frontier and JetBlue, with prices starting from $116 and $137, respectively.

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

    No one likes to see their flight delayed. When booking a flight from Philadelphia to San Francisco consider choosing China Southern (89%), United Airlines (76%) or Air New Zealand (76%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to San Francisco?

    Looking for the cheapest flight from Philadelphia to San Francisco? While on average our users pay $1,004, our data indicates the cheapest price to be $114. The most popular route (Philadelphia - San Francisco), is priced around $147.

  • Where are the most common layover locations when flying from Philadelphia to San Francisco?

    The most popular layover on flights from Philadelphia to San Francisco is Denver. Phoenix is the second most popular location for layovers on flights from Philadelphia to San Francisco. Atlanta comes next as the third most popular layover location for Philadelphia to San Francisco flights.

  • What are some popular things to do or see while on a layover in Denver?

    Coors Field, 16th Street Mall, and Paramount Theatre are the most popular attractions in Denver if you're in need of something to do during your layover. Coors Field, 16th Street Mall and Paramount Theatre are located about 18.4 mi, 18.7 mi, and 18.6 mi, respectively from Denver Intl if you are interested in checking them out. Travelers can book a car rental at Denver Intl for about $47 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Phoenix?

    Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are the most popular attractions in Phoenix if you're in need of something to do during your layover. Chase Field, Desert Ridge Marketplace, and Phoenix Symphony Hall are located about 4.0 mi, 16.7 mi, and 4.3 mi, respectively from Phoenix Sky Harbor Intl. Those landing in Phoenix looking to spend some time exploring during their layover can rent a car for about $55 per day.

  • What are points of interest worth seeing during a layover in Atlanta?

    If you're on a layover in Atlanta and looking for things to do, consider visiting Georgia Aquarium, Fox Theatre, or World of Coca-Cola. Travelers on a layover in Atlanta can visit Georgia Aquarium, Fox Theatre, and World of Coca-Cola, by traveling 8.6 mi, 9.3 mi, and 8.6 mi, respectively after landing at Atlanta Hartsfield-Jackson. Travelers in need of a car in Atlanta can rent one for about $47 per day.

  • Where are the least popular layover locations for Philadelphia to San Francisco flights?

    The least popular layover on flights from Philadelphia to San Francisco is Los Angeles. Chicago sees the second fewest layovers for non-direct flights flying from Philadelphia to San Francisco. Detroit sees the third fewest flights with layovers for the Philadelphia to San Francisco route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Philadelphia to San Francisco 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 Philadelphia to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Philadelphia to San Francisco (average of $276). Flying from Philadelphia to San Francisco in June is currently the most expensive (average of $403). 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

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Roseville
Mountain View
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Vallejo
Newark
Alameda
Campbell
Pacific Grove
Sunnyvale

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Alternative routes for Philadelphia to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Philadelphia to San Francisco

Discover the top 8 airlines that operate flights from Philadelphia to San Francisco. 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 2,558,603 searches. Data last updated February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$122Average$203FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$135Average$313FlexibilityNo cancel feeOn-time83%
FrontierCheapest$137Average$221FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$225Average$255FlexibilityNo cancel feeOn-time62%
DeltaCheapest$264Average$358FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$268Average$424FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$281Average$457FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$368Average$488FlexibilityNo cancel feeOn-time63%
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