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Fremont

$50+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SFO
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Fremont are usually found in January or February, booked 85 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 December 12, 2025.

This Frontier deal was found by Cheapflights users on 12/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:58 pmLAX - SFO
Nonstop1h 32mFrontier
Tue 1/67:09 pmSFO - LAX
Nonstop1h 27mFrontier
Deal found 12/10$85
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:58 pmLAX - SFO
Nonstop1h 32mFrontier
Mon 1/266:39 pmSFO - LAX
Nonstop1h 33mFrontier
Deal found 12/10$91
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:58 pmLAX - SFO
Nonstop1h 32mFrontier
Mon 1/59:30 pmSFO - LAX
Nonstop1h 29mFrontier
Deal found 12/10$93
This Frontier deal was found by Cheapflights users on 12/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:58 pmLAX - SFO
Nonstop1h 32mFrontier
Thu 1/810:41 amSFO - LAX
Nonstop1h 32mFrontier
Deal found 12/10$101
This Frontier deal was found by Cheapflights users on 12/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:58 pmLAX - SFO
Nonstop1h 32mFrontier
Fri 1/910:41 amSFO - LAX
Nonstop1h 32mFrontier
Deal found 12/10$102
This Frontier deal was found by Cheapflights users on 12/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/186:58 pmLAX - SFO
Nonstop1h 32mFrontier
Mon 1/59:30 pmSFO - LAX
Nonstop1h 29mFrontier
Deal found 12/10$103
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:58 pmLAX - SFO
Nonstop1h 32mFrontier
Thu 1/19:30 pmSFO - LAX
Nonstop1h 29mFrontier
Deal found 12/10$104
This CheapOair deal was found by Cheapflights users on 12/9. 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.
Mon 12/226:58 pmLAX - SFO
Nonstop1h 32mFrontier
Thu 1/19:30 pmSFO - LAX
Nonstop1h 29mFrontier
Deal found 12/9$105
This Frontier deal was found by Cheapflights users on 12/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:35 pmLAX - SFO
Nonstop1h 36mFrontier
Tue 1/67:09 pmSFO - LAX
Nonstop1h 27mFrontier
Deal found 12/10$106
This Frontier deal was found by Cheapflights users on 12/11. 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.
Wed 12/246:58 pmLAX - SFO
Nonstop1h 32mFrontier
Sun 1/49:30 pmSFO - LAX
Nonstop1h 29mFrontier
Deal found 12/11$109
This Frontier deal was found by Cheapflights users on 12/11. 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.
Thu 12/256:58 pmLAX - SFO
Nonstop1h 32mFrontier
Wed 12/319:30 pmSFO - LAX
Nonstop1h 29mFrontier
Deal found 12/11$113
This Frontier deal was found by Cheapflights users on 12/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:58 pmLAX - SFO
Nonstop1h 32mFrontier
Mon 12/299:30 pmSFO - LAX
Nonstop1h 29mFrontier
Deal found 12/10$114

Find flight deals from Irvine to Fremont

Keep the following information in mind while searching for Irvine to Fremont flight deals. Data was last updated December 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$83
(Expedia)

One-way from

$50
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$171
Provider with most accurate pricing for Los Angeles-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-San Francisco flights.
Search Deals
From Irvine to Fremont
Search Deals
One-way flight from Irvine to Fremont
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($4 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 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 December 12, 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

Thu 1/29

5:49 pm-7:23 pm

Nonstop1h 34m

San Francisco

Thu 2/5

4:51 pm-9:27 am

1 stop16h 36m

$99

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Tue 1/13

3:32 pm-9:45 pm

1 stop6h 13m

San Francisco

Wed 1/14

2:24 pm-7:22 pm

1 stop4h 58m

$110

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Wed 3/4

6:00 am-7:31 am

Nonstop1h 31m

San Francisco

Wed 3/4

10:35 am-12:06 pm

Nonstop1h 31m

$111

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Sat 1/17

7:10 am-8:35 am

Nonstop1h 25m

San Francisco

Sun 1/18

8:15 am-9:40 am

Nonstop1h 25m

$117

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Tue 3/3

6:30 am-7:55 am

Nonstop1h 25m

San Francisco

Sat 3/7

1:08 pm-2:40 pm

Nonstop1h 32m

$117

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Sat 1/17

4:15 pm-5:47 pm

Nonstop1h 32m

San Francisco

Sun 1/18

10:59 pm-12:34 am

Nonstop1h 35m

$117

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Tue 1/6

7:50 am-9:20 am

Nonstop1h 30m

San Francisco

Tue 1/13

2:10 pm-3:35 pm

Nonstop1h 25m

$117

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Sat 2/7

7:55 pm-9:25 pm

Nonstop1h 30m

San Francisco

Tue 2/10

7:30 am-9:02 am

Nonstop1h 32m

$117

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Wed 2/25

4:30 pm-5:56 pm

Nonstop1h 26m

San Francisco

Thu 2/26

11:02 am-12:35 pm

Nonstop1h 33m

$117

Los AngelesSan Francisco

LAX - SFO

LAXSFO

Los Angeles

Sat 4/11

6:58 pm-8:30 pm

Nonstop1h 32m

San Francisco

Sat 4/18

2:00 pm-3:34 pm

Nonstop1h 34m

$118

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 22 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 December 5, 2025.

To ensure you get the cheapest price possible for a flight from Irvine to Fremont, you should look to book at least 85 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, February is the cheapest month in which you can book a flight from Irvine to Fremont (average of $18). Flying from Irvine to Fremont in November is currently the most expensive (average of $62). 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 December 12, 2025.

It’s typically best to fly out from Irvine to Fremont in the afternoon. Doing so could potentially save you 30% 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.

Weekly flight availability from Irvine to Fremont

Explore weekly flight availability from Irvine 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 December 12, 2025.

The most flights from IR9 to FR8 are scheduled on a Thursday (156 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (69 on average).

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 December 12, 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
11,432 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

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
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

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
8,007 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

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
9,095 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

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
11,050 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

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
3,084 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Entertainment

7.0

Crew

8.5

Boarding

8.1

Overall

8.0

Food

7.1

Comfort

7.8

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 373 times in the past calendar month.

  • How long is the flight from Irvine to Fremont?

    Frontier, Alaska Airlines, and Southwest can get you from Irvine to Fremont in just under 1h 25m. Your travel time will be generally consistent. Irvine and Fremont are separated by a distance of 338 mi. All flights are typically nonstop.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $21. However, be on the lookout for offers from Frontier and JetBlue, 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 Aer Lingus (92%), Emirates (82%) or KLM (76%) 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 $892, our data indicates the cheapest price to be $54. The most popular route (Los Angeles - San Francisco), is priced around $55.

  • 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, February is the cheapest month in which you can book a flight from Irvine to Fremont (average of $18). Flying from Irvine to Fremont in November is currently the most expensive (average of $62). 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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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$19Average$97FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$30Average$99FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$57Average$200FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$58Average$193FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$58Average$215FlexibilityNo cancel feeOn-time69%
DeltaCheapest$86Average$198FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$97Average$273FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$106Average$217FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$107Average$343FlexibilityNo cancel feeOn-time71%

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