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Fremont

$101+ Cheap flights from Chicago (CHI) 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
oct. 17 — oct. 241
ven. 10/17
ven. 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Fremont are usually found in July or February, booked 83 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Chicago to Fremont

Keep the following information in mind while searching for Chicago to Fremont flight deals. Data was last updated septembre 17, 2025.

Round-trip from

$208
(CheapOair)

One-way from

$101
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$297
From Chicago (CHI) to Fremont
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One-way flight from Chicago (CHI) to Fremont
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Highest demand for flights based on searches. 8% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Chicago to Fremont

Cheapest flights from Chicago to Fremont
Explore the most affordable flight options available from Chicago to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septembre 17, 2025.

This CheapOair deal was found by Cheapflights users on 9/15. 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.
jeu. 10/165:20 pmMDW - SFO
1 stop24h 40mFrontier
dim. 10/198:21 pmSFO - MDW
1 stop26h 03mFrontier
Deal found 9/15$208
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
mar. 10/218:20 amORD - SFO
1 stop7h 41mMultiple Airlines
dim. 10/2610:25 pmSFO - ORD
1 stop12h 33mMultiple Airlines
Deal found 9/15$208
This CheapOair deal was found by Cheapflights users on 9/15. 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.
ven. 10/316:29 pmMDW - SFO
2 stops25h 14mFrontier
dim. 11/21:10 pmSFO - MDW
1 stop26h 39mFrontier
Deal found 9/15$209
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
ven. 10/249:54 pmORD - SFO
1 stop13h 35mMultiple Airlines
mar. 10/288:00 amSFO - ORD
1 stop9h 34mMultiple Airlines
Deal found 9/15$209
This Frontier deal was found by Cheapflights users on 9/16. 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.
jeu. 10/236:24 pmMDW - SFO
1 stop7h 50mFrontier
dim. 10/268:21 pmSFO - MDW
1 stop12h 55mFrontier
Deal found 9/16$210
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
ven. 10/1712:28 pmORD - SFO
1 stop10h 55mFrontier
mer. 10/226:34 amSFO - ORD
1 stop15h 19mFrontier
Deal found 9/15$210
This Frontier deal was found by Cheapflights users on 9/15. 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.
ven. 10/175:10 amMDW - SFO
1 stop12h 50mFrontier
jeu. 10/233:25 pmSFO - MDW
1 stop7h 11mFrontier
Deal found 9/15$211
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
mar. 9/3011:15 amORD - SFO
1 stop12h 06mMultiple Airlines
lun. 10/66:29 amSFO - ORD
1 stop15h 30mMultiple Airlines
Deal found 9/16$211
This CheapOair deal was found by Cheapflights users on 9/15. 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.
mar. 10/147:15 amORD - SFO
1 stop17h 12mFrontier
ven. 10/174:55 pmSFO - ORD
1 stop29h 04mFrontier
Deal found 9/15$212
This Frontier deal was found by Cheapflights users on 9/16. 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.
lun. 10/205:10 amMDW - SFO
1 stop12h 50mFrontier
dim. 10/268:21 pmSFO - MDW
1 stop12h 55mFrontier
Deal found 9/16$213
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
jeu. 10/304:30 pmORD - SFO
2 stops18h 14mFrontier
jeu. 11/61:10 pmSFO - ORD
1 stop9h 49mFrontier
Deal found 9/15$213
This CheapOair deal was found by Cheapflights users on 9/15. 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.
jeu. 11/139:39 pmMDW - SFO
1 stop16h 36mFrontier
dim. 11/1610:11 pmSFO - MDW
2 stops17h 48mFrontier
Deal found 9/15$214

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 septembre 17, 2025.
Use the filters below to find and compare flights from Chicago to Fremont that are best for you.

Fly from

Chicago

Fly to

Fremont

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

ven. 12/12

3:05 pm-11:48 pm

1 stop10h 43m

San Francisco

lun. 12/15

7:47 pm-2:09 pm

1 stop16h 22m

$241

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

jeu. 11/13

2:54 pm-11:46 pm

1 stop10h 52m

San Francisco

mar. 11/18

7:00 am-11:59 pm

1 stop14h 59m

$241

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

mer. 10/8

8:20 am-2:01 pm

1 stop7h 41m

San Francisco

mar. 10/14

10:26 am-11:59 pm

1 stop11h 33m

$259

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

sam. 12/6

8:00 am-8:03 pm

2 stops14h 03m

San Francisco

mer. 12/10

8:09 am-6:54 pm

1 stop8h 45m

$268

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

ven. 11/14

2:54 pm-10:01 pm

1 stop9h 07m

San Francisco

mar. 11/18

10:35 am-7:55 pm

1 stop7h 20m

$277

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

lun. 10/27

9:07 pm-11:59 pm

Nonstop4h 52m

San Francisco

mer. 10/29

5:10 am-11:30 am

Nonstop4h 20m

$287

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

mar. 10/14

6:15 am-8:54 am

Nonstop4h 39m

San Francisco

sam. 10/18

7:00 am-1:32 pm

Nonstop4h 32m

$287

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

mar. 10/28

6:05 pm-11:33 pm

1 stop7h 28m

San Francisco

ven. 10/31

12:35 am-9:03 am

1 stop6h 28m

$289

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

jeu. 12/11

8:15 am-11:00 am

Nonstop4h 45m

San Francisco

jeu. 12/18

6:10 am-12:15 pm

Nonstop4h 05m

$297

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

sam. 10/25

4:23 pm-10:30 pm

1 stop8h 07m

San Francisco

mar. 10/28

12:35 am-8:55 am

1 stop6h 20m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 42 results
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Best time to book a flight from Chicago to Fremont

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

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Fremont. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Fremont, you should look to book at least 83 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 Chicago to Fremont?

Currently, January is the cheapest month in which you can book a flight from Chicago to Fremont (average of $276). Flying from Chicago to Fremont in June is currently the most expensive (average of $357). 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 CHI to FR8?

Find hourly flight availability from Chicago 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 septembre 17, 2025.

When flying from Chicago to Fremont, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

Travelers seeking maximum savings on their Chicago to Fremont flight should consider departing on Thursday evenings 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 Chicago to Fremont

Explore weekly flight availability from Chicago 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 septembre 17, 2025.

The most flights from CHI to FR8 are scheduled on a Monday (93 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (45 on average).

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 septembre 17, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and United Airlines from Chicago 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

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.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

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
8,926 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

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
3,173 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Food

7.1

Boarding

8.1

Crew

8.5

Overall

8.0

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 Chicago to Fremont. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago to Fremont?

    There are many flights that can get you from Chicago to Fremont in 4h 45m. Fly via Alaska Airlines, Delta, or Southwest to get the fastest option. There are 1849 mi between Chicago and Fremont. 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 Chicago to Fremont one-way?

    For one-way options, check prices for Hawaiian Airlines. According to our data, you can fly for as low as $109. Users have also found prices from $115 and $139 on Alaska Airlines and Southwest, respectively.

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

    The top 3 most reliable airlines when flying from Chicago to Fremont are Air China (84%), ANA (80%) and United Airlines (76%).

  • What are the cheapest flights from Chicago to Fremont?

    The cheapest flight price from Chicago to Fremont is $89. On average you can expect to pay $935. The most popular route, (Chicago O'Hare Intl - San Francisco), can usually be booked for $153.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago to Fremont (average of $276). Flying from Chicago to Fremont in June is currently the most expensive (average of $357). 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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Alternative routes for Chicago to Fremont

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Chicago to Fremont

Discover the top 9 airlines that operate flights from Chicago 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 septembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$83Average$243FlexibilityNo cancel feeOn-time65%
FrontierCheapest$90Average$263FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$108Average$217FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$112Average$335FlexibilityNo cancel feeOn-time83%
DeltaCheapest$128Average$351FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$180Average$421FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$188Average$328FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$197Average$417FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$204Average$414FlexibilityNo cancel feeOn-time69%

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