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Fremont

$159+ 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 3/8. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SFO
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Cheapflights Tip: The best prices from Philadelphia to Fremont are usually found in September or July, booked 48 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 February 12, 2026.

This United Airlines deal was found by Cheapflights users on 2/10. 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 3/56:20 pm
PHL
-
SFO
Nonstop6h 30m
United Airlines
Tue 3/1011:05 pm
SFO
-
PHL
Nonstop5h 10m
United Airlines
Deal found 2/10$289
This Frontier deal was found by Cheapflights users on 2/9. 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.
Mon 3/99:17 am
PHL
-
SFO
1 stop12h 57m
Frontier
Sat 3/1410:38 pm
SFO
-
PHL
1 stop9h 21m
Frontier
Deal found 2/9$290
This Frontier deal was found by Cheapflights users on 2/11. 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 2/1512:28 pm
PHL
-
SFO
1 stop12h 11m
Frontier
Wed 2/1810:58 pm
SFO
-
PHL
1 stop9h 20m
Frontier
Deal found 2/11$291
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 3/57:50 pm
PHL
-
SFO
2 stops26h 24m
Frontier
Tue 3/1010:40 pm
SFO
-
PHL
1 stop9h 19m
Frontier
Deal found 2/10$292
This Mytrip deal was found by Cheapflights users on 2/9. 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 2/1512:28 pm
PHL
-
SFO
1 stop12h 11m
Frontier
Sun 2/2210:46 pm
SFO
-
PHL
1 stop9h 32m
Frontier
Deal found 2/9$293
This CheapOair deal was found by Cheapflights users on 2/9. 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 3/56:00 am
PHL
-
SFO
2 stops13h 56m
Multiple Airlines
Tue 3/1010:40 pm
SFO
-
PHL
1 stop9h 19m
Multiple Airlines
Deal found 2/9$294
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 4/1312:10 pm
PHL
-
SFO
1 stop10h 04m
Multiple Airlines
Wed 4/156:00 am
SFO
-
PHL
2 stops13h 59m
Multiple Airlines
Deal found 2/10$295
This Kiwi.com deal was found by Cheapflights users on 2/11. 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 2/2112:23 pm
PHL
-
SFO
1 stop12h 32m
Multiple Airlines
Tue 2/2410:58 pm
SFO
-
PHL
2 stops14h 28m
Multiple Airlines
Deal found 2/11$296
This JetBlue deal was found by Cheapflights users on 2/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:00 am
PHL
-
SFO
1 stop12h 34m
JetBlue
Mon 6/19:00 pm
SFO
-
PHL
1 stop11h 15m
JetBlue
Deal found 2/10$297
This Trip.com deal was found by Cheapflights users on 2/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1011:52 am
PHL
-
SFO
1 stop10h 22m
Frontier
Sun 3/2210:40 pm
SFO
-
PHL
1 stop9h 19m
Frontier
Deal found 2/10$298
This United Airlines deal was found by Cheapflights users on 2/9. 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.
Wed 4/226:21 pm
PHL
-
SFO
Nonstop6h 18m
United Airlines
Sun 4/2611:52 pm
SFO
-
PHL
1 stop7h 36m
United Airlines
Deal found 2/9$299
This Frontier deal was found by Cheapflights users on 2/11. 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 3/89:17 am
PHL
-
SFO
1 stop12h 57m
Frontier
Wed 3/1110:38 pm
SFO
-
PHL
1 stop9h 21m
Frontier
Deal found 2/11$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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$159
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$409
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. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 12, 2026.
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

Wed 3/4

8:35 am-12:06 pm

Nonstop6h 31m

San Francisco

Wed 3/11

11:05 pm-7:15 am

Nonstop5h 10m

$289

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 4/22

6:21 pm-9:39 pm

Nonstop6h 18m

San Francisco

Sat 4/25

11:35 pm-8:15 am

Nonstop5h 40m

$289

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Thu 3/12

6:20 pm-9:50 pm

Nonstop6h 30m

San Francisco

Wed 3/25

11:05 pm-7:15 am

Nonstop5h 10m

$289

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 4/22

6:12 am-9:30 am

Nonstop6h 18m

San Francisco

Sun 4/26

11:35 pm-8:15 am

Nonstop5h 40m

$289

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 6/6

10:00 am-7:34 pm

1 stop12h 34m

San Francisco

Sun 6/7

9:30 pm-9:13 am

1 stop8h 43m

$297

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 5/13

6:06 pm-9:24 pm

Nonstop6h 18m

San Francisco

Sat 5/16

11:05 pm-9:54 am

1 stop7h 49m

$299

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 5/22

8:26 pm-1:42 am

1 stop8h 16m

San Francisco

Mon 5/25

11:20 pm-7:50 am

Nonstop5h 30m

$299

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Thu 4/23

6:12 am-9:30 am

Nonstop6h 18m

San Francisco

Sun 4/26

11:52 pm-10:28 am

1 stop7h 36m

$299

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 7/22

6:30 pm-9:40 pm

Nonstop6h 10m

San Francisco

Tue 8/4

10:35 pm-9:49 am

1 stop8h 14m

$299

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Mon 4/13

5:01 am-12:23 am

2 stops22h 22m

$161

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 20 results
1
2

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 February 6, 2026.

Booking 48 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 $181). 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 February 12, 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.

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 February 12, 2026.
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
4,280 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

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
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

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
8,180 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

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
9,279 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

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
11,271 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

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
5.7
Fair
3,052 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

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 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 2 daily outbound flights to Fremont from 7 different airlines.

  • How popular is this Philadelphia to Fremont flight route?

    Within the past month, 82 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 6h 31m. United Airlines provides one of the quickest options available for as low as $289. 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 $71 on Spirit Airlines. Other airlines that offer cheap prices include Frontier from $77 and JetBlue from $128 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 Aer Lingus (80%), American Airlines (69%) or British Airways (65%) 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 $1,107 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 $193.

  • 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 $181). 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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Alternative routes for Philadelphia to Fremont

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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$67Average$224FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$136Average$282FlexibilityNo cancel feeOn-time62%
FrontierCheapest$140Average$258FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$347FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$179Average$420FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$211Average$370FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$277Average$415FlexibilityNo cancel feeOn-time69%

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