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Cheap flights from Philadelphia to San Francisco from £91

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SFO
26 Feb — 5 Mar1
1 adult

The best prices from Philadelphia to San Francisco are usually found in September or January, booked 87 days in advance, depart on a Tuesday or Monday and return on a Wednesday

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 21 February 2025.

Round-trip from

£206

One-way from

£91

Popular in

June

Cheapest in

September

Average price

£308
United Airlines
  • United Airlines
  • 22/3-23/3
  • Nonstop
  • 11h 49m total
  • Philadelphia to San Francisco
United Airlines
  • United Airlines
  • 25/3
  • Nonstop
  • 6h 31m total
  • Philadelphia to San Francisco
Highest demand for flights based on searches. 7% potential increase in price (£21 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in February 2025

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 21 February 2025.

Sat 22/306:12PHL - SFO
Nonstop6h 33mUnited Airlines
Sun 23/320:54SFO - PHL
Nonstop5h 16mUnited Airlines
Deal found 20/2£206
Wed 16/407:05PHL - SFO
1 stop8h 30mDelta
Mon 21/400:47SFO - PHL
1 stop6h 49mDelta
Deal found 20/2£219
Sat 29/309:55PHL - SFO
1 stop10h 25mSouthwest
Wed 2/408:10SFO - PHL
2 stops11h 25mSouthwest
Deal found 20/2£249
Wed 26/210:12PHL - SFO
1 stop12h 12mJetBlue
Fri 2/520:50SFO - PHL
1 stop9h 49mJetBlue
Deal found 19/2£264
Sat 26/407:04PHL - SFO
2 stops14h 22mAlaska Airlines
Mon 5/516:49SFO - PHL
1 stop9h 55mAlaska Airlines
Deal found 19/2£292
Wed 2/712:05PHL - SFO
1 stop13h 45mSun Country Air
Sun 6/723:59SFO - PHL
1 stop8h 11mSun Country Air
Deal found 20/2£297

Find flights from Philadelphia to San Francisco within your budget

Customise 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 858,174 searches. Data last updated 21 February 2025.

Fly from

Philadelphia

Fly to

San Francisco

Route

Depart

Return

Price

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 22/3

06:12-09:45

Nonstop6h 33m

San Francisco

Sun 23/3

20:54-05:10

Nonstop5h 16m

£206

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 16/4

07:05-12:35

1 stop8h 30m

San Francisco

Mon 21/4

00:47-10:36

1 stop6h 49m

£219

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 29/3

09:55-17:20

1 stop10h 25m

San Francisco

Wed 2/4

08:10-22:35

2 stops11h 25m

£249

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 2/4

17:37-00:23

1 stop9h 46m

San Francisco

Thu 3/4

08:25-20:40

1 stop9h 15m

£269

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 26/4

07:04-18:26

2 stops14h 22m

San Francisco

Mon 5/5

16:49-05:44

1 stop9h 55m

£292

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 2/7

12:05-22:50

1 stop13h 45m

San Francisco

Sun 6/7

23:59-11:10

1 stop8h 11m

£297

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 25/3

06:09-09:40

Nonstop6h 31m

£91

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Thu 29/5

17:30-00:20

1 stop9h 50m

£109

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 16/4

12:28-19:00

1 stop9h 32m

£110

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 1/4

07:20-19:22

2 stops15h 02m

£116

Flights are sorted by cheapest return flights first.

Deals found on 21/2

Showing 1-10 of 13 results
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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 return 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 return flight from Philadelphia to San Francisco. Price data was last updated on 14 February 2025.

The best time to book flights from Philadelphia to San Francisco is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, February is the cheapest month in which you can book a flight from Philadelphia to San Francisco (average of £538). Flying from Philadelphia to San Francisco in July is currently the most expensive (average of £803). 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 21 February 2025.

When flying from Philadelphia to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 21 February 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 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

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 21 February 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Philadelphia to San Francisco have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

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

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

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

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

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

8.0
Very Good

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

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

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

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

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

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

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

    United Airlines, at £206, was found to be the cheapest airline from Philadelphia to San Francisco.Alternate airlines flying return to your destination include Delta and Southwest. United Airlines is priced at 36% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapet airlines for a one-way flight from Philadelphia to San Francisco are United Airlines (£91), JetBlue (£109), and Delta (£110).

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

    The top 3 most reliable airlines when flying from Philadelphia to San Francisco are China Southern (89%), United Airlines (76%) and Air New Zealand (76%).

  • 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 holiday 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, February is the cheapest month in which you can book a flight from Philadelphia to San Francisco (average of £538). Flying from Philadelphia to San Francisco in July is currently the most expensive (average of £803). 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

Travelling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Santa Cruz
San Mateo
Los Banos
Vallejo
South San Francisco
Pacific Grove
Union City

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Can Cheapflights find flights from Philadelphia to San Francisco with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Philadelphia to San Francisco, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Philadelphia to San Francisco become cheaper?

Yes, Cheapflights offers price alerts on Philadelphia to San Francisco flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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