HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Fremont

$117+ 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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Fremont 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 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 October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$234
(Priceline)

One-way from

$117
(Booking.com)

Popular in

December

Cheapest in

July

Average price

$319
Provider with most accurate pricing for Chicago (CHI)-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-San Francisco flights.
Search Deals
From Chicago (CHI) to Fremont
Search Deals
One-way flight from Chicago (CHI) to Fremont
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 14, 2025.

This Priceline deal was found by Cheapflights users on 10/13. 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.
Fri 11/1411:24 amORD - SFO
1 stop11h 47mFrontier
Sun 11/1610:23 pmSFO - ORD
1 stop10h 18mFrontier
Deal found 10/13$234
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/275:30 amMDW - SFO
1 stop10h 47mFrontier
Sun 12/72:34 pmSFO - MDW
2 stops30h 31mFrontier
Deal found 10/12$235
This Flightnetwork deal was found by Cheapflights users on 10/13. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:00 amORD - SFO
1 stop20h 14mFrontier
Sat 11/86:34 amSFO - ORD
1 stop14h 55mFrontier
Deal found 10/13$235
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:30 pmMDW - SFO
1 stop13h 44mFrontier
Mon 11/310:23 pmSFO - MDW
2 stops23h 32mFrontier
Deal found 10/11$236
This Cheapflightsfares deal was found by Cheapflights users on 10/12. 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.
Mon 10/209:54 pmORD - SFO
1 stop25h 28mFrontier
Sun 11/210:23 pmSFO - ORD
1 stop10h 18mFrontier
Deal found 10/12$236
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 10/309:23 amORD - SFO
1 stop7h 48mMultiple Airlines
Sat 11/16:28 pmSFO - ORD
1 stop11h 00mMultiple Airlines
Deal found 10/12$237
This Trip.com deal was found by Cheapflights users on 10/13. 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.
Fri 11/71:37 pmMDW - SFO
1 stop9h 34mFrontier
Sun 11/98:09 pmSFO - MDW
1 stop13h 21mFrontier
Deal found 10/13$238
This Alaska Airlines deal was found by Cheapflights users on 10/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/118:59 pmORD - SFO
1 stop27h 02mAlaska Airlines
Tue 12/27:00 amSFO - ORD
1 stop10h 54mAlaska Airlines
Deal found 10/12$238
This Kiwi.com deal was found by Cheapflights users on 10/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:30 pmMDW - SFO
1 stop13h 44mFrontier
Tue 11/48:02 amSFO - MDW
2 stops26h 39mFrontier
Deal found 10/11$239
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 10/225:28 pmORD - SFO
2 stops17h 16mFrontier
Tue 10/287:00 amSFO - ORD
1 stop15h 12mFrontier
Deal found 10/13$239
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 12/116:00 amMDW - SFO
2 stops14h 55mFrontier
Sun 12/146:21 amSFO - MDW
1 stop12h 15mFrontier
Deal found 10/12$240
This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
Fri 10/2410:51 amORD - SFO
1 stop15h 23mMultiple Airlines
Mon 10/2710:17 pmSFO - ORD
1 stop19h 17mMultiple Airlines
Deal found 10/13$240

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 October 14, 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

Wed 12/10

3:05 pm-9:46 pm

1 stop8h 41m

San Francisco

Tue 1/6

7:00 am-11:59 pm

1 stop14h 59m

$250

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 1/9

7:30 am-1:17 pm

1 stop7h 47m

San Francisco

Sat 1/10

1:59 pm-11:44 pm

1 stop7h 45m

$263

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 12/17

8:50 am-3:57 pm

2 stops9h 07m

San Francisco

Tue 1/6

6:05 am-11:44 pm

1 stop15h 39m

$268

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 12/11

7:20 am-3:57 pm

2 stops10h 37m

San Francisco

Mon 12/15

5:50 am-5:15 pm

1 stop9h 25m

$268

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 10/28

7:59 pm-11:01 am

1 stop17h 02m

San Francisco

Tue 11/4

7:00 am-11:59 pm

1 stop14h 59m

$284

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 11/15

2:54 pm-9:55 pm

1 stop9h 01m

San Francisco

Thu 11/20

1:11 pm-12:24 am

2 stops9h 13m

$286

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Fri 10/31

2:10 pm-8:50 pm

1 stop8h 40m

San Francisco

Sun 11/9

6:10 am-12:15 pm

Nonstop4h 05m

$288

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Tue 12/9

1:50 pm-8:28 pm

1 stop8h 38m

San Francisco

Tue 12/30

12:10 am-11:06 am

1 stop8h 56m

$288

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Tue 11/4

6:08 am-4:05 pm

2 stops11h 57m

San Francisco

Sun 11/9

6:00 am-11:59 pm

1 stop15h 59m

$288

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Fri 10/31

6:00 am-11:45 am

1 stop7h 45m

San Francisco

Sat 11/8

6:10 am-3:26 pm

1 stop7h 16m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 46 results
1
2
3
...
5

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 October 10, 2025.

To ensure you get the cheapest price possible for a flight from Chicago to Fremont, you should look to book at least 48 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 December is currently the most expensive (average of $207). 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 October 14, 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 October 14, 2025.

The most flights from CHI to FR8 are scheduled on a Tuesday (90 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (55 on average).

How much does it cost to fly round-trip from Chicago 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 14, 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
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

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
11,083 reviews
Alaska Airlines
8.0
Very good
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

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.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

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
8,977 reviews
Alaska Airlines
8.0
Very good
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

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
11,044 reviews
Alaska Airlines
8.0
Very good
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

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
3,135 reviews
Alaska Airlines
8.0
Very good
11,083 reviews

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Entertainment

7.0

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 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 7h 47m. Fly via Alaska Airlines, Delta, or Southwest 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 United Airlines. According to our data, you can fly for as low as $117. Users have also found prices from $126 and $127 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 ANA (84%), Air China (83%) and Air Canada (81%).

  • What are the cheapest flights from Chicago to Fremont?

    The cheapest flight price from Chicago to Fremont is $127. On average you can expect to pay $1,032. 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, 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 December is currently the most expensive (average of $207). 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

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 Chicago to Fremont

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

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 October 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$264FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$83Average$226FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$108Average$217FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$112Average$374FlexibilityNo cancel feeOn-time83%
DeltaCheapest$128Average$352FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$424FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$188Average$305FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$197Average$464FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$202Average$413FlexibilityNo cancel feeOn-time69%

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.