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Fremont

$132+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 November 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$253
(Kiwi.com)

One-way from

$132
(Kiwi.com)

Popular in

November

Cheapest in

July

Average price

$426
Provider with most accurate pricing for Chicago (CHI)-San Francisco flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-San Francisco flights.
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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. 15% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 26, 2025.

This Frontier deal was found by Cheapflights users on 11/25. 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 12/1512:59 pmORD - SFO
1 stop10h 09mFrontier
Mon 12/1511:33 pmSFO - ORD
1 stop13h 39mFrontier
Deal found 11/25$254
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Thu 12/116:15 amMDW - SFO
1 stop9h 03mFrontier
Mon 12/154:59 pmSFO - MDW
2 stops13h 47mFrontier
Deal found 11/26$255
This Kiwi.com deal was found by Cheapflights users on 11/26. 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.
Thu 12/256:12 amMDW - SFO
1 stop9h 01mFrontier
Tue 1/612:49 pmSFO - MDW
2 stops31h 28mFrontier
Deal found 11/26$256
This Delta deal was found by Cheapflights users on 11/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:00 amORD - SFO
1 stop9h 33mDelta
Tue 12/167:15 amSFO - ORD
1 stop7h 30mDelta
Deal found 11/25$256
This CheapOair deal was found by Cheapflights users on 11/23. 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.
Sun 12/2110:50 pmMDW - SFO
1 stop27h 34mFrontier
Tue 1/1311:20 pmSFO - MDW
1 stop9h 11mFrontier
Deal found 11/23$257
This Cheapflightsfares deal was found by Cheapflights users on 11/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:27 pmORD - SFO
1 stop8h 04mFrontier
Thu 1/16:24 amSFO - ORD
1 stop15h 48mFrontier
Deal found 11/26$257
This CheapOair deal was found by Cheapflights users on 11/25. 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 12/46:15 amMDW - SFO
1 stop9h 03mFrontier
Sun 12/74:07 pmSFO - MDW
1 stop17h 01mFrontier
Deal found 11/25$258
This Kiwi.com deal was found by Cheapflights users on 11/25. 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 12/156:11 amORD - SFO
1 stop9h 17mFrontier
Thu 12/186:00 amSFO - ORD
1 stop6h 17mFrontier
Deal found 11/25$258
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 12/86:11 amORD - SFO
1 stop9h 17mFrontier
Thu 12/114:07 pmSFO - ORD
1 stop6h 05mFrontier
Deal found 11/24$260
This Cheapflightsfares deal was found by Cheapflights users on 11/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2110:49 pmORD - SFO
1 stop25h 00mFrontier
Sun 1/1111:35 pmSFO - ORD
1 stop10h 00mFrontier
Deal found 11/26$261
This CheapOair deal was found by Cheapflights users on 11/25. 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 12/126:15 amMDW - SFO
1 stop9h 03mFrontier
Sun 12/1411:33 pmSFO - MDW
1 stop8h 19mFrontier
Deal found 11/25$262
This Frontier deal was found by Cheapflights users on 11/25. 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.
Fri 12/1212:59 pmORD - SFO
1 stop10h 26mFrontier
Fri 12/1211:38 pmSFO - ORD
1 stop10h 16mFrontier
Deal found 11/25$262

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 November 26, 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

MDW - SFO

MDWSFO

Chicago Midway

Fri 2/20

7:50 am-2:20 pm

1 stop8h 30m

San Francisco

Mon 2/23

6:25 am-12:25 pm

Nonstop4h 00m

$258

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Sat 1/17

8:15 am-11:15 am

Nonstop5h 00m

San Francisco

Mon 1/19

8:30 pm-5:15 am

1 stop6h 45m

$258

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Fri 1/16

7:16 pm-11:47 pm

1 stop6h 31m

San Francisco

Mon 1/19

10:54 pm-8:52 am

1 stop7h 58m

$259

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Fri 1/30

12:48 pm-7:49 pm

1 stop9h 01m

San Francisco

Mon 2/2

10:54 pm-8:52 am

1 stop7h 58m

$259

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Mon 2/2

8:50 am-1:47 pm

1 stop6h 57m

San Francisco

Sat 2/7

12:40 am-11:47 am

1 stop9h 07m

$259

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Sun 1/18

8:10 am-2:55 pm

2 stops8h 45m

San Francisco

Tue 1/27

9:55 am-9:15 pm

2 stops9h 20m

$263

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sun 1/18

7:15 am-3:30 pm

2 stops10h 15m

San Francisco

Tue 1/27

9:55 am-10:35 pm

2 stops10h 40m

$263

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 1/8

2:20 pm-10:55 pm

2 stops10h 35m

San Francisco

Sat 1/10

12:46 pm-9:43 pm

1 stop6h 57m

$266

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 2/28

12:46 pm-3:51 pm

Nonstop5h 05m

San Francisco

Mon 3/2

6:45 am-1:06 pm

Nonstop4h 21m

$267

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Thu 1/15

6:14 pm-11:25 pm

1 stop7h 11m

San Francisco

Mon 1/19

10:54 pm-8:52 am

1 stop7h 58m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 47 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 November 21, 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, October is the cheapest month in which you can book a flight from Chicago to Fremont (average of $80). Flying from Chicago to Fremont in November is currently the most expensive (average of $204). 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 November 26, 2025.

It’s typically best to fly out from Chicago to Fremont in the afternoon. Doing so could potentially save you 12% on the flight price compared to flying in the evening, which is usually more expensive.

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 mornings 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 November 26, 2025.

The most flights from CHI to FR8 are scheduled on a Monday (68 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (19 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 November 26, 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
11,355 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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
11,355 reviews
Alaska Airlines
8.0
Very good
11,355 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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.
Southwest
8.0
Very good
4,253 reviews
Alaska Airlines
8.0
Very good
11,355 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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
9,046 reviews
Alaska Airlines
8.0
Very good
11,355 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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
11,038 reviews
Alaska Airlines
8.0
Very good
11,355 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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
3,099 reviews
Alaska Airlines
8.0
Very good
11,355 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Food

7.1

Boarding

8.1

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 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 5h 05m. Fly via Southwest, Delta, or United Airlines to get the fastest option. There are 1841 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 Southwest. According to our data, you can fly for as low as $135. Users have also found prices from $136 and $140 on Delta and United Airlines, respectively.

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

    The top 3 most reliable airlines when flying from Chicago to Fremont are ANA (90%), ITA Airways (87%) and Air China (85%).

  • What are the cheapest flights from Chicago to Fremont?

    The cheapest flight price from Chicago to Fremont is $129. On average you can expect to pay $1,218. The most popular route, (Chicago O'Hare Intl - San Francisco), can usually be booked for $175.

  • 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, October is the cheapest month in which you can book a flight from Chicago to Fremont (average of $80). Flying from Chicago to Fremont in November is currently the most expensive (average of $204). 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$242FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$83Average$221FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$108Average$217FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$112Average$375FlexibilityNo cancel feeOn-time83%
DeltaCheapest$128Average$353FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$430FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$188Average$328FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$197Average$465FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$204Average$432FlexibilityNo cancel feeOn-time69%

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