HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$126+ Cheap flights from Fremont, CA to Chicago (CHI)

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.
SFO — CHI
Jan 16 — Jan 231
Fri 1/16
Fri 1/23
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Fremont to Chicago with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Fremont to Chicago are usually found in February or September, booked 71 days in advance, depart on a Wednesday or Saturday and return on a Thursday

Cheap flight deals from Fremont to Chicago

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

This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Tue 12/308:12 pmSFO - ORD
2 stops26h 00mFrontier
Sun 1/410:49 pmORD - SFO
1 stop15h 45mFrontier
Deal found 12/15$276
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Wed 12/316:24 amSFO - ORD
1 stop15h 48mFrontier
Mon 1/56:00 amORD - SFO
1 stop9h 13mFrontier
Deal found 12/15$285
This Kiwi.com deal was found by Cheapflights users on 12/14. 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.
Sun 12/286:24 amSFO - ORD
1 stop15h 48mFrontier
Sun 1/410:49 pmORD - SFO
1 stop15h 45mFrontier
Deal found 12/14$292
This Trip.com deal was found by Cheapflights users on 12/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:24 amSFO - ORD
1 stop15h 48mFrontier
Thu 1/17:00 amORD - SFO
1 stop19h 24mFrontier
Deal found 12/15$295
This CheapOair deal was found by Cheapflights users on 12/14. 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 12/2511:20 pmSFO - MDW
1 stop12h 01mFrontier
Mon 1/56:12 amMDW - SFO
1 stop9h 01mFrontier
Deal found 12/14$305
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Wed 12/249:30 pmSFO - ORD
1 stop30h 35mMultiple Airlines
Mon 1/51:32 pmORD - SFO
2 stops35h 27mMultiple Airlines
Deal found 12/15$316
This CheapOair deal was found by Cheapflights users on 12/17. 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 12/308:16 pmSFO - MDW
1 stop11h 05mFrontier
Sun 1/410:50 pmMDW - SFO
1 stop27h 34mFrontier
Deal found 12/17$319
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 12/249:30 pmSFO - ORD
1 stop16h 19mFrontier
Mon 1/56:00 amORD - SFO
1 stop9h 13mFrontier
Deal found 12/14$324
This Kiwi.com deal was found by Cheapflights users on 12/14. 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 12/249:30 pmSFO - ORD
1 stop16h 19mFrontier
Sun 1/410:49 pmORD - SFO
1 stop10h 59mFrontier
Deal found 12/14$326
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
Mon 12/296:24 amSFO - ORD
1 stop15h 48mMultiple Airlines
Mon 1/57:57 pmORD - SFO
2 stops48h 02mMultiple Airlines
Deal found 12/15$327
This Southwest deal was found by Cheapflights users on 12/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:10 amSFO - MDW
Nonstop4h 05mSouthwest
Mon 1/511:15 amMDW - SFO
1 stop7h 35mSouthwest
Deal found 12/15$346
This Cheapflightsfares deal was found by Cheapflights users on 12/14. 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.
Fri 12/196:24 amSFO - ORD
1 stop15h 48mFrontier
Mon 12/226:00 amORD - SFO
1 stop9h 13mFrontier
Deal found 12/14$350

Find flight deals from Fremont to Chicago

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

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$263
(Southwest)

One-way from

$126
(Priceline)

Popular in

December

Cheapest in

February

Average price

$458
Provider with most accurate pricing for San Francisco-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Chicago (CHI) flights.
Search Deals
From Fremont to Chicago (CHI)
Search Deals
One-way flight from Fremont to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 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 Fremont to Chicago 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 17, 2025.
Use the filters below to find and compare flights from Fremont to Chicago that are best for you.

Fly from

Fremont

Fly to

Chicago

Route

Depart

Return

Price

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Tue 3/17

11:34 am-11:56 pm

1 stop10h 22m

Chicago O'Hare Intl

Tue 3/24

2:05 pm-7:19 pm

1 stop7h 14m

$266

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sun 1/25

7:00 am-11:37 pm

1 stop14h 37m

Chicago O'Hare Intl

Sat 1/31

9:00 am-9:55 pm

2 stops14h 55m

$266

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Sat 2/21

6:55 am-12:55 pm

Nonstop4h 00m

Chicago Midway

Tue 2/24

8:10 am-2:55 pm

2 stops8h 45m

$268

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Sun 1/25

6:25 am-12:25 pm

Nonstop4h 00m

Chicago Midway

Sat 1/31

8:15 am-11:15 am

Nonstop5h 00m

$269

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Tue 1/20

2:00 pm-9:50 pm

1 stop5h 50m

Chicago Midway

Fri 1/23

8:10 am-2:55 pm

2 stops8h 45m

$273

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Sat 2/21

6:10 am-4:14 pm

1 stop8h 04m

Chicago Midway

Tue 2/24

1:26 pm-10:41 pm

2 stops11h 15m

$276

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Tue 2/3

8:15 am-4:35 pm

1 stop6h 20m

Chicago Midway

Wed 2/11

10:00 am-5:05 pm

2 stops9h 05m

$276

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 1/8

1:35 pm-8:05 pm

Nonstop4h 30m

Chicago O'Hare Intl

Mon 1/12

2:40 pm-5:36 pm

Nonstop4h 56m

$279

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Thu 1/8

6:45 am-1:10 pm

Nonstop4h 25m

Chicago O'Hare Intl

Fri 1/16

6:47 am-9:40 am

Nonstop4h 53m

$279

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Sat 1/24

10:25 am-4:20 pm

Nonstop3h 55m

Chicago Midway

Mon 1/26

8:15 am-3:30 pm

1 stop9h 15m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Fremont to Chicago

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

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

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

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Fremont to Chicago. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, December is the cheapest month in which you can book a flight from Fremont to Chicago (average of $107). Flying from Fremont to Chicago in November is currently the most expensive (average of $210). 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 FR8 to CHI?

Find hourly flight availability from Fremont to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 17, 2025.

When flying from Fremont to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 25% versus a flight in the evening.

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

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

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

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated December 17, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and United Airlines from Fremont to Chicago 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
11,474 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,474 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,249 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,053 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Frontier
5.8
Fair
3,082 reviews
Alaska Airlines
8.0
Very good
11,474 reviews

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Entertainment

7.0

Food

7.1

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

Find useful and relevant information for your journey from Fremont to Chicago. 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 Fremont to Chicago?

    For as low as $268, Alaska Airlines can have you in Chicago from Fremont in 4h. There are 1849 mi between Fremont and Chicago. 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 Chicago one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $71. However, be on the lookout for offers from Hawaiian Airlines and Alaska Airlines, as they are both options that can get you from Fremont to Chicago for a low price.

  • What are the most popular routes from Fremont to Chicago?

    When deciding which route to take from Fremont to Chicago consider San Francisco - Chicago O'Hare Intl, San Francisco - Chicago Midway or San Francisco - Chicago Greater Rockford as they are the most popular.

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

    No one likes to see their flight delayed. When booking a flight from Fremont to Chicago consider choosing Fiji Airways (100%), Royal Jordanian (92%) or China Southern (91%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Fremont to Chicago?

    On average you can expect to pay $1,106 for a flight from Fremont to Chicago. The cheapest flight overall is $126 while the most popular route, (San Francisco - Chicago O'Hare Intl) is currently priced at $165.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Fremont to Chicago (average of $107). Flying from Fremont to Chicago in November is currently the most expensive (average of $210). 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

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lansing
Merrillville
Hammond
Porter
Benton Harbor

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Fremont to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Los Angeles to Midway flights
Ontario to O'Hare Intl flights
San Diego to O'Hare Intl flights
Santa Ana to O'Hare Intl flights
Las Vegas to O'Hare Intl flights
San Francisco to Midway flights
Sacramento to O'Hare Intl flights
San Jose to O'Hare Intl flights
Los Angeles to St. Louis flights
Burbank to O'Hare Intl flights
Las Vegas to Midway flights
San Francisco to St. Louis flights
San Diego to Midway flights
Sacramento to Midway flights
Palm Springs to O'Hare Intl flights
Ontario to Midway flights
Oakland to O'Hare Intl flights
Santa Ana to Midway flights
San Jose to Midway flights
Fresno to O'Hare Intl flights
Reno to O'Hare Intl flights
Ontario to St. Louis flights
San Diego to St. Louis flights
Oakland to Midway flights
Sacramento to St. Louis flights
Las Vegas to St. Louis flights
Burbank to Midway flights
Long Beach to O'Hare Intl flights
Burbank to St. Louis flights
Santa Barbara to O'Hare Intl flights
Santa Ana to St. Louis flights
Los Angeles to Moline flights
San Jose to St. Louis flights
Monterey to O'Hare Intl flights
Los Angeles to Rockford flights
Bakersfield to O'Hare Intl flights
Reno to Midway flights
Fresno to Midway flights
Palm Springs to Midway flights
Los Angeles to Peoria flights
San Luis Obispo to O'Hare Intl flights
Santa Ana to Peoria flights
Long Beach to Midway flights
Long Beach to St. Louis flights
Ontario to Peoria flights
Reno to St. Louis flights
Santa Barbara to St. Louis flights
San Francisco to Peoria flights

Top 8 airlines flying from Fremont to Chicago

Discover the top 8 airlines that operate flights from Fremont to Chicago. 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 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$249FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$108Average$226FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$108Average$288FlexibilityNo cancel feeOn-time85%
DeltaCheapest$128Average$347FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$133Average$427FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$170Average$389FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$185Average$424FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$197Average$347FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.