Fremont

$157+ Cheap flights from Philadelphia (PHL) to Fremont, CA

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SFO
Apr 19 — Apr 261
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Cheapflights Tip: The best prices from Philadelphia to Fremont are usually found in September or July, booked 59 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Philadelphia to Fremont

Cheapest flights from Philadelphia to Fremont
Explore the most affordable flight options available from Philadelphia to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 20, 2026.

This Booking.com deal was found by Cheapflights users on 3/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:36 pm
PHL
-
SFO
1 stop26h 29m
Frontier
Fri 4/106:00 am
SFO
-
PHL
1 stop20h 31m
Frontier
Deal found 3/16$289
This Frontier deal was found by Cheapflights users on 3/17. 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 5/241:32 pm
PHL
-
SFO
1 stop9h 02m
Frontier
Fri 6/512:52 pm
SFO
-
PHL
1 stop13h 45m
Frontier
Deal found 3/17$290
This CheapOair deal was found by Cheapflights users on 3/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/28:25 pm
PHL
-
SFO
1 stop26h 45m
Frontier
Tue 4/79:00 pm
SFO
-
PHL
1 stop29h 31m
Frontier
Deal found 3/20$291
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:35 pm
PHL
-
SFO
2 stops27h 29m
Frontier
Sun 5/106:00 am
SFO
-
PHL
1 stop20h 37m
Frontier
Deal found 3/19$292
This Kiwi.com deal was found by Cheapflights users on 3/15. 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.
Wed 4/298:00 am
PHL
-
SFO
2 stops16h 39m
Frontier
Sat 5/26:00 am
SFO
-
PHL
1 stop20h 35m
Frontier
Deal found 3/15$293
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/248:41 pm
PHL
-
SFO
1 stop29h 44m
Frontier
Sun 5/39:24 pm
SFO
-
PHL
2 stops38h 50m
Frontier
Deal found 3/17$294
This Travelocity deal was found by Cheapflights users on 3/20. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:17 am
PHL
-
SFO
1 stop12h 57m
Frontier
Thu 4/29:00 pm
SFO
-
PHL
1 stop29h 31m
Frontier
Deal found 3/20$295
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Tue 4/141:30 pm
PHL
-
SFO
2 stops36h 55m
Frontier
Thu 4/1611:56 am
SFO
-
PHL
1 stop14h 38m
Frontier
Deal found 3/17$296
This CheapOair deal was found by Cheapflights users on 3/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/108:25 pm
PHL
-
SFO
1 stop31h 03m
Frontier
Tue 4/1410:38 pm
SFO
-
PHL
1 stop9h 32m
Frontier
Deal found 3/19$297
This Orbitz deal was found by Cheapflights users on 3/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/176:00 am
PHL
-
SFO
1 stop10h 00m
Multiple Airlines
Sat 5/2312:52 pm
SFO
-
PHL
1 stop13h 45m
Multiple Airlines
Deal found 3/17$298
This Mytrip deal was found by Cheapflights users on 3/15. 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.
Sun 4/128:25 pm
PHL
-
SFO
1 stop31h 03m
Frontier
Sun 4/192:47 pm
SFO
-
PHL
1 stop11h 26m
Frontier
Deal found 3/15$299
This Frontier deal was found by Cheapflights users on 3/20. 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.
Tue 4/712:00 pm
PHL
-
SFO
1 stop10h 19m
Frontier
Sat 4/116:43 pm
SFO
-
PHL
1 stop7h 47m
Frontier
Deal found 3/20$300

Find flight deals from Philadelphia to Fremont

Keep the following information in mind while searching for Philadelphia to Fremont flight deals. Data was last updated March 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(Booking.com)

One-way from

$157
(CheapOair)

Popular in

November

Cheapest in

September

Average price

$438
Provider with most accurate pricing for Philadelphia-San Francisco flight deals.
Provider most trusted by Cheapflights users for Philadelphia-San Francisco flights.
From Philadelphia to Fremont
One-way flight from Philadelphia to Fremont
Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in March 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Fremont 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 March 20, 2026.
Use the filters below to find and compare flights from Philadelphia to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 5/15

9:30 am-12:48 pm

Nonstop6h 18m

San Francisco

Tue 5/19

11:20 pm-8:00 am

Nonstop5h 40m

$349

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 5/29

6:23 pm-9:33 pm

Nonstop6h 10m

San Francisco

Sat 6/6

6:56 pm-5:31 am

1 stop7h 35m

$359

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Mon 6/15

8:26 pm-1:42 am

1 stop8h 16m

San Francisco

Mon 7/13

11:20 pm-7:50 am

Nonstop5h 30m

$359

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Mon 6/1

6:23 pm-9:33 pm

Nonstop6h 10m

San Francisco

Sun 6/7

10:38 pm-9:39 am

1 stop8h 01m

$359

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 8/14

6:40 pm-11:52 pm

1 stop8h 12m

San Francisco

Tue 8/18

6:00 am-5:25 pm

1 stop8h 25m

$369

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 8/28

1:04 pm-6:29 pm

1 stop8h 25m

San Francisco

Sat 8/29

12:45 am-11:58 am

1 stop8h 13m

$369

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 6/5

2:00 pm-7:55 pm

1 stop8h 55m

San Francisco

Mon 6/8

11:00 am-12:40 am

2 stops10h 40m

$378
Quickest round-trip

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 5/19

6:00 am-9:18 am

Nonstop6h 18m

San Francisco

Sun 5/24

11:20 pm-7:50 am

Nonstop5h 30m

$415

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 6/16

4:35 pm-11:15 pm

2 stops9h 40m

San Francisco

Tue 6/23

12:10 pm-1:00 am

2 stops9h 50m

$419

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 4/3

6:54 pm-12:02 am

1 stop8h 08m

San Francisco

Tue 4/14

8:00 pm-8:55 am

2 stops9h 55m

$451

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/15

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Philadelphia to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont 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 Fremont

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

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Fremont. Price data was last updated on March 13, 2026.

Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia to Fremont. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from Philadelphia to Fremont (average of $113). Flying from Philadelphia to Fremont in May is currently the most expensive (average of $193). 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 FR8?

Find hourly flight availability from Philadelphia to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 20, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Philadelphia to Fremont as you normally would.

Weekly flight availability from Philadelphia to Fremont

Explore weekly flight availability from Philadelphia to Fremont. 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 March 20, 2026.

The most flights from PHL to FR8 are scheduled on a Friday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated March 20, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Philadelphia to Fremont have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

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

    Located just 7.0 mi from the city center, Philadelphia is the airport most travelers will use when flying to Fremont from Philadelphia. Booking flights from Philadelphia (PHL) to Fremont should be relatively easy as there are 11 daily outbound flights to Fremont from 7 different airlines.

  • How popular is this Philadelphia to Fremont flight route?

  • How long is the flight from Philadelphia to Fremont?

    A quick flight from Philadelphia to Fremont can take about 6h 18m. United Airlines provides one of the quickest options available for as low as $349. Airlines will cover a distance of 2513 mi. All flights are typically nonstop.

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

    One-way options have recently been found by users for as low as $90 on Frontier. Other airlines that offer cheap prices include JetBlue from $128 and Delta from $138 one-way.

  • What are the most reliable airlines from Philadelphia to Fremont?

    No one likes to see their flight delayed. When booking a flight from Philadelphia to Fremont consider choosing Air China (100%), Fiji Airways (88%) or Qatar Airways (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Philadelphia to Fremont?

    On average you can expect to pay $1,222 for a flight from Philadelphia to Fremont. The cheapest flight overall is $168 while the most popular route, (Philadelphia - San Francisco) is currently priced at $215.

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

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

  • How can I find direct flights from Philadelphia to Fremont?

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

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

    Yes. Cheapflights offers flight deals from Philadelphia to Fremont 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 Fremont?

    Currently, December is the cheapest month in which you can book a flight from Philadelphia to Fremont (average of $113). Flying from Philadelphia to Fremont in May is currently the most expensive (average of $193). 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 Fremont

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Philadelphia to Fremont

Discover the top 7 airlines that operate flights from Philadelphia to Fremont. 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 March 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$111Average$246FlexibilityNo cancel feeOn-time65%
DeltaCheapest$153Average$353FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$154Average$258FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$179Average$423FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$211Average$372FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$246Average$286FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$281Average$406FlexibilityNo cancel feeOn-time69%

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