San Diego

$59+ Cheap flights from Fremont, CA to San Diego (SAN)

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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — SAN
May 30 — Jun 61
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Cheapflights Tip: The best prices from Fremont to San Diego are usually found in July or June, booked 72 days in advance, depart on a Saturday or Tuesday and return on a Friday

Cheap flight deals from Fremont to San Diego

Cheapest flights from Fremont to San Diego
Explore the most affordable flight options available from Fremont to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.

This Kissandfly.com deal was found by Cheapflights users on 4/26. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:27 pm
SFO
-
SAN
Nonstop1h 48m
Frontier
Wed 6/176:20 am
SAN
-
SFO
1 stop6h 10m
Frontier
Deal found 4/26$109
This CheapOair deal was found by Cheapflights users on 4/29. 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.
Tue 6/210:01 pm
SFO
-
SAN
Nonstop1h 43m
Frontier
Sat 6/67:15 pm
SAN
-
SFO
Nonstop2h 01m
Frontier
Deal found 4/29$110
This Super.com deal was found by Cheapflights users on 4/26. 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.
Sat 6/610:01 pm
SFO
-
SAN
Nonstop1h 43m
Frontier
Wed 6/107:35 pm
SAN
-
SFO
Nonstop1h 55m
Frontier
Deal found 4/26$111
This CheapOair deal was found by Cheapflights users on 4/27. 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 6/510:01 pm
SFO
-
SAN
Nonstop1h 43m
Frontier
Mon 6/87:15 pm
SAN
-
SFO
Nonstop2h 01m
Frontier
Deal found 4/27$112
This CheapOair deal was found by Cheapflights users on 4/26. 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.
Tue 5/129:26 pm
SFO
-
SAN
Nonstop1h 46m
Frontier
Tue 5/196:44 pm
SAN
-
SFO
Nonstop1h 52m
Frontier
Deal found 4/26$113
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/306:16 am
SFO
-
SAN
Nonstop1h 42m
Multiple Airlines
Sat 5/307:15 pm
SAN
-
SFO
Nonstop2h 01m
Multiple Airlines
Deal found 4/26$114
This Expedia deal was found by Cheapflights users on 4/27. 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.
Thu 5/2810:01 pm
SFO
-
SAN
Nonstop1h 43m
Multiple Airlines
Wed 6/37:43 am
SAN
-
SFO
Nonstop1h 50m
Multiple Airlines
Deal found 4/27$115
This Super.com deal was found by Cheapflights users on 4/27. 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.
Wed 5/2710:01 pm
SFO
-
SAN
Nonstop1h 43m
Frontier
Wed 6/37:15 pm
SAN
-
SFO
Nonstop2h 01m
Frontier
Deal found 4/27$116
This United Airlines deal was found by Cheapflights users on 4/27. 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 5/2710:05 am
SFO
-
SAN
Nonstop1h 46m
United Airlines
Sat 5/309:07 am
SAN
-
SFO
Nonstop1h 46m
United Airlines
Deal found 4/27$117
This Frontier deal was found by Cheapflights users on 4/29. 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.
Sat 5/3010:01 pm
SFO
-
SAN
Nonstop1h 43m
Frontier
Mon 6/17:36 pm
SAN
-
SFO
1 stop18h 50m
Frontier
Deal found 4/29$118
This Frontier deal was found by Cheapflights users on 4/26. 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 5/109:56 pm
SFO
-
SAN
Nonstop1h 46m
Frontier
Tue 5/196:44 pm
SAN
-
SFO
Nonstop1h 52m
Frontier
Deal found 4/26$120

Find flight deals from Fremont to San Diego

Keep the following information in mind while searching for Fremont to San Diego flight deals. Data was last updated April 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$109
(Kissandfly.com)

One-way from

$59
(United Airlines)

Popular in

March

Cheapest in

July

Average price

$228
Provider with most accurate pricing for San Francisco-San Diego flight deals.
Provider most trusted by Cheapflights users for San Francisco-San Diego flights.
From Fremont to San Diego
One-way flight from Fremont to San Diego
Highest demand for flights based on searches. 21% potential increase in price ($54 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to San Diego 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 April 30, 2026.
Use the filters below to find and compare flights from Fremont to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 5/27

7:20 am-2:10 pm

2 stops6h 50m

San Diego

Wed 6/3

8:20 pm-10:05 pm

Nonstop1h 45m

$132

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Tue 6/2

7:20 am-2:10 pm

2 stops6h 50m

San Diego

Wed 6/3

4:25 pm-10:45 pm

1 stop6h 20m

$162
Quickest round-trip

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 6/17

5:50 am-7:25 am

Nonstop1h 35m

San Diego

Sun 6/21

7:15 am-8:50 am

Nonstop1h 35m

$172

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Mon 6/8

6:16 am-7:58 am

Nonstop1h 42m

San Diego

Mon 6/8

8:35 pm-10:23 pm

Nonstop1h 48m

$177

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 6/13

6:55 pm-11:40 pm

1 stop4h 45m

San Diego

Tue 6/16

3:00 pm-6:58 pm

1 stop3h 58m

$192

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Sat 5/30

11:05 am-4:10 pm

1 stop5h 05m

San Diego

Mon 6/1

4:20 pm-10:10 pm

2 stops5h 50m

$202

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 7/9

6:00 am-10:08 am

1 stop4h 08m

San Diego

Fri 7/24

9:26 am-11:12 am

Nonstop1h 46m

$217

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Wed 6/3

2:50 pm-7:25 pm

1 stop4h 35m

San Diego

Sun 6/7

8:25 am-2:30 pm

2 stops6h 05m

$222

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 5/21

6:00 am-7:35 am

Nonstop1h 35m

San Diego

Mon 5/25

6:20 am-8:10 am

Nonstop1h 50m

$232

San FranciscoSan Diego

SFO - SAN

SFOSAN

San Francisco

Thu 5/28

11:10 am-6:00 pm

1 stop6h 50m

San Diego

Thu 6/4

8:15 am-1:40 pm

2 stops5h 25m

$242

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Fremont to San Diego

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

What is the cheapest time of day to fly from FR8 to SAN?

Find hourly flight availability from Fremont to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2026.

One of the essential ways to save on airfare from Fremont to San Diego is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

What is the cheapest day to fly from Fremont to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Fremont to San Diego. Price data was last updated on April 25, 2026.

Travelers seeking maximum savings on their Fremont to San Diego flight should consider departing on Monday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Fremont to San Diego

Explore weekly flight availability from Fremont to San Diego. 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 April 30, 2026.

The most flights from FR8 to SAN are scheduled on a Wednesday (63 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 on average).

How much does it cost to fly round-trip from Fremont to San Diego?

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated April 30, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andHawaiian Airlines from Fremont to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

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.

Entertainment

7.5

Comfort

8.0

Food

7.0

Overall

8.0

Boarding

8.1

Crew

8.6

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 Fremont to San Diego. 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 into for flights to San Diego from Fremont?

    For a flight from Fremont to San Diego, you will be flying into San Diego. San Diego (SAN) is just 2.6 mi from the center of the city. San Diego is the only San Diego airport and it handles 30 inbound flights from Fremont per day. 9 airlines have flights to San Diego from Fremont on a regular basis.

  • How popular is this Fremont to San Diego flight route?

  • How long is the flight from Fremont to San Diego?

    There are many flights that can get you from Fremont to San Diego in 1h 42m. Fly via Southwest, Alaska Airlines, or Delta to get the fastest option. There are 446 mi between Fremont and San Diego. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $22. Frontier flights start at $30 while deals on Southwest start at $38 one-way.

  • What are the most reliable airlines from Fremont to San Diego?

    Before booking your flight to San Diego from Fremont, check out the most reliable airlines to get you to your destination on time: Iberia (100%), Copa Airlines (93%), Air China( 88%).

  • What are the cheapest flights from Fremont to San Diego?

    While on average a flight from Fremont to San Diego is generally $481, our data shows the cheapest flight currently is $58. When looking at the most popular route, (San Francisco - San Diego), you can expect to pay $56 for that flight.

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

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

  • How can I find direct flights from Fremont to San Diego?

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

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

    Yes. Cheapflights offers flight deals from Fremont to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Alternative routes for Fremont to San Diego

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

Top 9 airlines flying from Fremont to San Diego

Discover the top 9 airlines that operate flights from Fremont to San Diego. 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 April 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$34Average$129FlexibilityNo cancel feeOn-time65%
FrontierCheapest$37Average$122FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$46Average$169FlexibilityNo cancel feeOn-time85%
JetBlueCheapest$53Average$216FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$57Average$216FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$58Average$177FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$77Average$229FlexibilityNo cancel feeOn-time63%
DeltaCheapest$78Average$183FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$186Average$343FlexibilityNo cancel feeOn-time71%

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