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$101+ Cheap flights from Philadelphia (PHL) to San Francisco Bay Area

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SFO
Dec 2 — Dec 91
Tue 12/2
Tue 12/9
1 adult, Economy
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Cheap flight deals from Philadelphia to San Francisco Bay Area

Keep the following information in mind while searching for Philadelphia to San Francisco Bay Area flight deals. Data was last updated November 2, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$251
(American Airlines)

One-way from

$101
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$435
Provider with most accurate pricing for Philadelphia-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-San Francisco flights.
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From Philadelphia to San Francisco Bay Area
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One-way flight from Philadelphia to San Francisco Bay Area
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Highest demand for flights based on searches. 6% potential increase in price ($25 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Philadelphia to San Francisco Bay Area

Cheapest flights from Philadelphia to San Francisco Bay Area
Explore the most affordable flight options available from Philadelphia to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2025.

This American Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 12/1310:30 amPHL - SJC
1 stop11h 02mAmerican Airlines
Wed 12/176:10 amSJC - PHL
1 stop7h 09mAmerican Airlines
Deal found 11/2$251
This Delta deal was found by Cheapflights users on 11/2. 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.
Sat 12/136:18 amPHL - SJC
2 stops11h 39mDelta
Wed 12/176:35 amSJC - PHL
2 stops10h 04mDelta
Deal found 11/2$267
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Thu 12/43:58 pmPHL - SJC
1 stop9h 19mAmerican Airlines
Sat 12/136:00 amSJC - PHL
1 stop7h 42mAmerican Airlines
Deal found 10/31$271
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Thu 12/46:15 amPHL - SFO
Nonstop6h 25mUnited Airlines
Sun 12/711:15 amSFO - PHL
Nonstop5h 26mUnited Airlines
Deal found 11/2$289
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:30 amPHL - SFO
1 stop19h 20mMultiple Airlines
Mon 1/59:30 pmSFO - PHL
2 stops48h 01mMultiple Airlines
Deal found 11/2$291
This American Airlines deal was found by Cheapflights users on 10/31. 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.
Thu 12/45:00 amPHL - SJC
1 stop11h 05mAmerican Airlines
Thu 12/117:16 pmSJC - PHL
1 stop8h 34mAmerican Airlines
Deal found 10/31$291
This Kiwi.com deal was found by Cheapflights users on 11/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/173:59 pmPHL - SFO
2 stops27h 44mFrontier
Wed 11/198:02 amSFO - PHL
1 stop17h 47mFrontier
Deal found 11/1$292
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:11 pmPHL - SFO
1 stop21h 07mFrontier
Sat 12/1310:10 pmSFO - PHL
2 stops41h 28mFrontier
Deal found 11/2$294
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Sun 11/238:15 amPHL - SFO
1 stop9h 36mUnited Airlines
Sat 12/611:15 amSFO - PHL
Nonstop5h 26mUnited Airlines
Deal found 10/31$295
This Kiwi.com deal was found by Cheapflights users on 10/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:00 amPHL - SFO
1 stop15h 55mMultiple Airlines
Thu 1/84:07 pmSFO - PHL
2 stops14h 30mMultiple Airlines
Deal found 10/30$296
This Southwest deal was found by Cheapflights users on 10/31. 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.
Thu 12/412:05 pmPHL - SJC
2 stops11h 35mSouthwest
Thu 12/1112:25 pmSJC - PHL
1 stop7h 10mSouthwest
Deal found 10/31$296
This Kiwi.com deal was found by Cheapflights users on 10/31. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:19 amPHL - SFO
1 stop11h 21mFrontier
Wed 11/198:55 pmSFO - PHL
2 stops35h 52mFrontier
Deal found 10/31$297

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to San Francisco Bay Area 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 November 2, 2025.
Use the filters below to find and compare flights from Philadelphia to San Francisco Bay Area that are best for you.

Fly from

Philadelphia

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

PhiladelphiaSan Jose

PHL - SJC

PHLSJC

Philadelphia

Fri 1/16

7:06 pm-9:48 am

1 stop17h 42m

San Jose

Tue 1/20

6:15 am-6:03 pm

1 stop8h 48m

$273

PhiladelphiaSan Jose

PHL - SJC

PHLSJC

Philadelphia

Fri 1/16

5:40 am-12:56 pm

1 stop10h 16m

San Jose

Tue 1/20

8:05 pm-8:52 am

2 stops9h 47m

$282

PhiladelphiaSan Jose

PHL - SJC

PHLSJC

Philadelphia

Fri 1/16

1:15 pm-8:45 pm

1 stop10h 30m

San Jose

Tue 1/20

7:30 am-8:20 pm

2 stops9h 50m

$292

PhiladelphiaSan Jose

PHL - SJC

PHLSJC

Philadelphia

Fri 12/12

5:30 am-11:40 am

1 stop9h 10m

San Jose

Sun 12/14

10:25 pm-11:32 am

1 stop10h 07m

$297

PhiladelphiaSan Jose

PHL - SJC

PHLSJC

Philadelphia

Sat 12/6

7:06 am-1:50 pm

1 stop9h 44m

San Jose

Sat 12/13

5:50 pm-5:46 am

1 stop8h 56m

$298

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Mon 11/24

8:00 pm-1:15 am

1 stop8h 15m

San Francisco

Sun 1/4

10:40 pm-7:04 am

Nonstop5h 24m

$299

PhiladelphiaSan Jose

PHL - SJC

PHLSJC

Philadelphia

Sat 12/13

9:45 am-4:48 pm

2 stops10h 03m

San Jose

Wed 12/17

4:50 pm-9:27 am

2 stops13h 37m

$307

PhiladelphiaOakland

PHL - OAK

PHLOAK

Philadelphia

Sat 12/6

7:06 am-1:32 pm

1 stop9h 26m

Oakland

Wed 12/10

6:40 am-5:53 pm

1 stop8h 13m

$308

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 1/13

7:06 pm-10:46 am

1 stop18h 40m

San Francisco

Tue 1/20

7:40 pm-6:06 pm

1 stop19h 26m

$308

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 12/6

7:06 am-3:46 pm

1 stop11h 40m

San Francisco

Fri 12/12

6:20 pm-5:46 am

1 stop8h 26m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 60 results
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Best time to book a flight from Philadelphia to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area 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.

Cheapflights Insights

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

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

Currently, February is the cheapest month in which you can book a flight from Philadelphia to San Francisco Bay Area (average of $71). Flying from Philadelphia to San Francisco Bay Area in May is currently the most expensive (average of $187). 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 XIH?

Find hourly flight availability from Philadelphia to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2025.

One of the essential ways to save on airfare from Philadelphia to San Francisco Bay Area is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 36% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to San Francisco Bay Area. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Philadelphia to San Francisco Bay Area flight should consider departing on Wednesday evenings 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 Bay Area

Explore weekly flight availability from Philadelphia to San Francisco Bay Area. 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 November 2, 2025.

The most flights from PHL to zzXIH are scheduled on a Sunday (18 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing San Francisco Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 Bay Area. Reviews last updated November 2, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Philadelphia to San Francisco Bay Area by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,240 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,997 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,034 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,118 reviews
Southwest
8.0
Very good
4,240 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

  • What airport do you fly from for flights from Philadelphia to San Francisco Bay Area?

    If you book a flight to San Francisco Bay Area from Philadelphia, you will be flying from Philadelphia, which is the city’s only airport. Philadelphia (PHL) is located 7.0 mi from the center of Philadelphia.

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

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

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

    A quick flight from Philadelphia to San Francisco Bay Area can take about 10h 16m. Alaska Airlines provides one of the quickest options available for as low as $282. There are 2496 mi between Philadelphia and San Francisco Bay Area. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $121 on Frontier. Other airlines that offer cheap prices include American Airlines from $126 and Delta from $129 one-way.

  • What are the most popular routes from Philadelphia to San Francisco Bay Area?

    The most popular flight routes from Philadelphia to San Francisco Bay Area are Philadelphia - San Francisco, Philadelphia - San Jose and Philadelphia - Oakland.

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

    No one likes to see their flight delayed. When booking a flight from Philadelphia to San Francisco Bay Area consider choosing Air China (94%), ANA (89%) or British Airways (86%) 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 Bay Area?

    While on average a flight from Philadelphia to San Francisco Bay Area is generally $1,221, our data shows the cheapest flight currently is $158. When looking at the most popular route, (Philadelphia - San Francisco), you can expect to pay $209 for that flight.

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

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

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

    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 Bay Area.

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

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

    Currently, February is the cheapest month in which you can book a flight from Philadelphia to San Francisco Bay Area (average of $71). Flying from Philadelphia to San Francisco Bay Area in May is currently the most expensive (average of $187). 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

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Alternative routes for Philadelphia to San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Philadelphia to San Francisco Bay Area

Discover the top 7 airlines that operate flights from Philadelphia to San Francisco Bay Area. 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 November 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$125Average$291FlexibilityNo cancel feeOn-time65%
FrontierCheapest$137Average$265FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$179Average$436FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$470FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$225Average$282FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$247Average$402FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$347FlexibilityNo cancel feeOn-timeN/A

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