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$48+ Cheap flights from Irvine, CA 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SFO
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Fremont are usually found in January or November, booked 71 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Irvine to Fremont

Keep the following information in mind while searching for Irvine to Fremont flight deals. Data was last updated October 29, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$77
(Priceline)

One-way from

$48
(Kiwi.com)

Popular in

May

Cheapest in

January

Average price

$152
Provider with most accurate pricing for Los Angeles-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-San Francisco flights.
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From Irvine to Fremont
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One-way flight from Irvine to Fremont
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Irvine to Fremont

Cheapest flights from Irvine to Fremont
Explore the most affordable flight options available from Irvine to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:58 pmLAX - SFO
Nonstop1h 32mFrontier
Tue 12/309:30 pmSFO - LAX
Nonstop1h 29mFrontier
Deal found 10/27$77
This Frontier deal was found by Cheapflights users on 10/28. 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 12/216:58 pmLAX - SFO
Nonstop1h 32mFrontier
Tue 1/61:19 pmSFO - LAX
Nonstop1h 33mFrontier
Deal found 10/28$78
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:18 pmLAX - SFO
Nonstop1h 29mFrontier
Fri 11/288:53 pmSFO - LAX
Nonstop1h 27mFrontier
Deal found 10/27$79
This CheapOair deal was found by Cheapflights users on 10/28. 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 12/117:35 pmLAX - SFO
Nonstop1h 36mFrontier
Sun 12/146:29 pmSFO - LAX
Nonstop1h 32mFrontier
Deal found 10/28$80
This Frontier deal was found by Cheapflights users on 10/28. 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 11/153:27 pmLAX - SFO
1 stop6h 02mFrontier
Wed 11/195:28 pmSFO - LAX
Nonstop1h 31mFrontier
Deal found 10/28$82
This CheapOair deal was found by Cheapflights users on 10/27. 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.
Mon 11/1712:54 pmLAX - SFO
Nonstop1h 36mFrontier
Wed 11/195:28 pmSFO - LAX
Nonstop1h 31mFrontier
Deal found 10/27$83
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 12/177:35 pmLAX - SFO
Nonstop1h 36mFrontier
Sun 1/1810:41 amSFO - LAX
Nonstop1h 30mFrontier
Deal found 10/28$84
This CheapOair deal was found by Cheapflights users on 10/28. 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 11/277:18 pmLAX - SFO
Nonstop1h 29mFrontier
Fri 11/288:53 pmSFO - LAX
Nonstop1h 27mFrontier
Deal found 10/28$86
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/116:29 pmLAX - SFO
Nonstop1h 41mFrontier
Tue 11/185:28 pmSFO - LAX
Nonstop1h 31mFrontier
Deal found 10/28$87
This Frontier deal was found by Cheapflights users on 10/28. 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 12/206:58 pmLAX - SFO
Nonstop1h 32mFrontier
Mon 1/1910:41 amSFO - LAX
Nonstop1h 30mFrontier
Deal found 10/28$89

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine 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 October 29, 2025.
Use the filters below to find and compare flights from Irvine to Fremont that are best for you.

Fly from

Irvine

Fly to

Fremont

Route

Depart

Return

Price

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Sat 12/13

5:26 pm-6:53 pm

Nonstop1h 27m

San Francisco

Sat 12/13

10:24 pm-11:51 pm

Nonstop1h 27m

$111

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Mon 11/24

8:04 am-9:47 am

Nonstop1h 43m

San Francisco

Sat 11/29

6:00 am-7:35 am

Nonstop1h 35m

$122

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Mon 11/24

6:00 am-7:24 am

Nonstop1h 24m

San Francisco

Tue 11/25

6:00 am-7:35 am

Nonstop1h 35m

$122

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Thu 1/8

8:45 am-3:30 pm

2 stops6h 45m

San Francisco

Mon 1/12

5:35 pm-7:00 pm

Nonstop1h 25m

$132

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Fri 11/28

6:00 am-7:24 am

Nonstop1h 24m

San Francisco

Sat 11/29

6:00 am-7:35 am

Nonstop1h 35m

$132

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Wed 12/3

4:04 pm-8:43 am

1 stop16h 39m

San Francisco

Thu 12/4

11:40 am-1:13 pm

Nonstop1h 33m

$134

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Sun 12/7

7:05 am-8:35 am

Nonstop1h 30m

San Francisco

Tue 12/9

10:35 am-5:55 pm

2 stops7h 20m

$137

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Mon 12/22

7:50 pm-12:06 am

1 stop4h 16m

San Francisco

Tue 1/6

6:00 am-7:41 am

Nonstop1h 41m

$142

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Fri 11/28

6:00 am-7:24 am

Nonstop1h 24m

San Francisco

Mon 12/1

9:24 pm-10:52 pm

Nonstop1h 28m

$157

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Wed 1/28

5:20 pm-6:52 pm

Nonstop1h 32m

$59

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 21 results
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Best time to book a flight from Irvine to Fremont

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

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

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Fremont. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Irvine to Fremont, you should look to book at least 71 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Irvine to Fremont (average of $19). Flying from Irvine to Fremont in August is currently the most expensive (average of $57). 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 IR9 to FR8?

Find hourly flight availability from Irvine 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 October 29, 2025.

It’s typically best to fly out from Irvine to Fremont in the afternoon. Doing so could potentially save you 32% on the flight price compared to flying in the morning, which is usually more expensive.

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

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

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

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

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 October 29, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines from Irvine to Fremont by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,206 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,206 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
7.9
Good
7,994 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
9,001 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,124 reviews
Alaska Airlines
8.0
Very good
11,206 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Irvine to Fremont. 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 Irvine to Fremont flight route?

    Flights from Irvine to Fremont have been viewed 397 times in the past calendar month.

  • How long is the flight from Irvine to Fremont?

    Alaska Airlines, United Airlines, and Southwest can get you from Irvine to Fremont in just under 1h 27m. Your travel time can differ by up to 5h 18m. Irvine and Fremont are separated by a distance of 338 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $59. However, be on the lookout for offers from Delta and Southwest, as they are both options that can get you from Irvine to Fremont for a low price.

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

    Consider China Southern (88%), ANA (83%) or Aer Lingus (82%) when booking your flight. These represent the most reliable airlines when flying from Irvine to Fremont.

  • What are the cheapest flights from Irvine to Fremont?

    Looking for the cheapest flight from Irvine to Fremont? While on average our users pay $699, our data indicates the cheapest price to be $41. The most popular route (Los Angeles - San Francisco), is priced around $47.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Irvine to Fremont (average of $19). Flying from Irvine to Fremont in August is currently the most expensive (average of $57). 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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Top 9 airlines flying from Irvine to Fremont

Discover the top 9 airlines that operate flights from Irvine 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$19Average$90FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$30Average$103FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$57Average$199FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$58Average$193FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$58Average$220FlexibilityNo cancel feeOn-time69%
DeltaCheapest$86Average$196FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$97Average$273FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$106Average$210FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$107Average$343FlexibilityNo cancel feeOn-time71%

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