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Fremont

$155+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SFO
ene. 2 — ene. 91
vie. 1/2
vie. 1/9
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Fremont are usually found in September or February, booked 87 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 diciembre 3, 2025.

This Super.com deal was found by Cheapflights users on 12/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/125:30 amPHL - SFO
1 stop10h 48mFrontier
dom. 12/1411:33 pmSFO - PHL
1 stop8h 50mFrontier
Deal found 12/3$291
This Frontier deal was found by Cheapflights users on 12/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/78:36 pmPHL - SFO
1 stop14h 17mFrontier
dom. 12/1411:33 pmSFO - PHL
1 stop8h 50mFrontier
Deal found 12/1$292
This CheapOair deal was found by Cheapflights users on 12/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/58:36 pmPHL - SFO
1 stop30h 48mFrontier
vie. 12/126:30 amSFO - PHL
1 stop20h 01mFrontier
Deal found 12/1$293
This CheapOair deal was found by Cheapflights users on 12/3. 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.
sáb. 12/208:36 pmPHL - SFO
1 stop30h 48mFrontier
lun. 1/1911:46 pmSFO - PHL
1 stop12h 51mFrontier
Deal found 12/3$298
This United Airlines deal was found by Cheapflights users on 12/2. 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.
mar. 12/236:34 pmPHL - SFO
1 stop9h 40mUnited Airlines
sáb. 12/2710:40 pmSFO - PHL
Nonstop5h 24mUnited Airlines
Deal found 12/2$299
This Super.com deal was found by Cheapflights users on 12/1. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/315:15 amPHL - SFO
1 stop10h 58mFrontier
dom. 1/411:20 pmSFO - PHL
1 stop8h 48mFrontier
Deal found 12/1$301
This Kiwi.com deal was found by Cheapflights users on 12/1. 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.
dom. 12/78:36 pmPHL - SFO
2 stops26h 17mFrontier
vie. 12/126:30 amSFO - PHL
1 stop20h 01mFrontier
Deal found 12/1$302
This Frontier deal was found by Cheapflights users on 12/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/55:30 amPHL - SFO
1 stop10h 48mFrontier
lun. 12/1511:33 pmSFO - PHL
1 stop8h 17mFrontier
Deal found 12/2$303
This Expedia deal was found by Cheapflights users on 12/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/228:36 pmPHL - SFO
1 stop30h 48mFrontier
mar. 12/306:00 amSFO - PHL
1 stop20h 40mFrontier
Deal found 12/1$304
This CheapOair deal was found by Cheapflights users on 12/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/188:36 pmPHL - SFO
1 stop30h 48mFrontier
lun. 12/296:00 amSFO - PHL
1 stop20h 40mFrontier
Deal found 12/2$305

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 diciembre 3, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$289
(Alaska Airlines)

One-way from

$155
(Southwest)

Popular in

November

Cheapest in

September

Average price

$432
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 Fremont
Search Deals
One-way flight from Philadelphia to Fremont
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 diciembre 3, 2025.
Use the filters below to find and compare flights from Philadelphia to Fremont that are best for you.

Fly from

Philadelphia

Fly to

Fremont

Route

Depart

Return

Price

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

jue. 2/19

5:00 am-1:10 pm

2 stops11h 10m

San Francisco

sáb. 2/21

6:40 am-4:45 pm

1 stop7h 05m

$289

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

mié. 4/29

12:55 pm-6:47 pm

1 stop8h 52m

San Francisco

mié. 5/6

11:05 pm-7:45 am

Nonstop5h 40m

$299

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

lun. 2/23

6:20 pm-9:50 pm

Nonstop6h 30m

San Francisco

lun. 3/2

10:40 pm-9:48 am

1 stop8h 08m

$299

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

vie. 3/6

6:50 pm-11:54 pm

1 stop8h 04m

San Francisco

vie. 3/13

5:01 pm-5:41 am

1 stop9h 40m

$309

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

vie. 1/9

12:11 pm-7:49 pm

1 stop10h 38m

San Francisco

dom. 1/11

6:30 pm-8:50 am

2 stops11h 20m

$321

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

mar. 3/24

6:00 am-2:50 pm

1 stop11h 50m

San Francisco

dom. 3/29

8:45 pm-7:49 am

1 stop8h 04m

$331

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

dom. 2/15

5:00 am-10:10 am

1 stop8h 10m

$155

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

jue. 2/26

6:00 am-2:15 pm

1 stop11h 15m

$159

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

mié. 3/4

5:40 am-2:20 pm

2 stops11h 40m

$160

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

lun. 12/15

8:36 pm-4:51 pm

2 stops23h 15m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 18 results
1
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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 November 28, 2025.

Booking 70 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, February is the cheapest month in which you can book a flight from Philadelphia to Fremont (average of $71). Flying from Philadelphia to Fremont in May is currently the most expensive (average of $184). 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 diciembre 3, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 27% on flights from Philadelphia to Fremont by exploring options for tickets at noon.

What is the cheapest day to fly from Philadelphia to Fremont?

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

Travelers seeking maximum savings on their Philadelphia to Fremont 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.

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 diciembre 3, 2025.
See what other customers who have flown with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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
4,253 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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
8,011 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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
9,063 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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
11,045 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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
3,094 reviews
Southwest
8.0
Very good
4,253 reviews

Entertainment

7.5

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Boarding

8.1

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 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 3 daily outbound flights to Fremont from 7 different airlines.

  • How popular is this Philadelphia to Fremont flight route?

    Within the past month, 60 users have taken a look at flights from Philadelphia to Fremont.

  • How long is the flight from Philadelphia to Fremont?

    A quick flight from Philadelphia to Fremont can take about 8h 04m. Southwest provides one of the quickest options available for as low as $309. Airlines will cover a distance of 2513 mi. This flight may include one or multiple stops.

  • 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 $66 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $80 and JetBlue from $113 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 Qantas Airways (91%), Fiji Airways (89%) or Air China (88%) 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 $1,071 for a flight from Philadelphia to Fremont. The cheapest flight overall is $158 while the most popular route, (Philadelphia - San Francisco) is currently priced at $180.

  • 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, February is the cheapest month in which you can book a flight from Philadelphia to Fremont (average of $71). Flying from Philadelphia to Fremont in May is currently the most expensive (average of $184). 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.

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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 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 diciembre 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$125Average$313FlexibilityNo cancel feeOn-time65%
FrontierCheapest$136Average$273FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$179Average$433FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$216Average$367FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$225Average$282FlexibilityNo cancel feeOn-time62%
DeltaCheapest$276Average$349FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$276Average$420FlexibilityNo cancel feeOn-time69%

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