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Fremont

$129+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
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 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$249
(Southwest)

One-way from

$129
(Kiwi.com)

Popular in

November

Cheapest in

July

Average price

$421
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 ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% 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 13, 2025.

This Southwest deal was found by Cheapflights users on 11/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/59:40 amMDW - SFO
1 stop7h 00mSouthwest
Mon 12/86:10 amSFO - MDW
Nonstop4h 05mSouthwest
Deal found 11/10$249
This Cheapflightsfares deal was found by Cheapflights users on 11/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:00 amORD - SFO
1 stop15h 23mFrontier
Sun 12/76:00 amSFO - ORD
1 stop27h 42mFrontier
Deal found 11/10$249
This Alaska Airlines deal was found by Cheapflights users on 11/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:59 pmORD - SFO
1 stop13h 07mAlaska Airlines
Mon 1/58:46 pmSFO - ORD
1 stop7h 43mAlaska Airlines
Deal found 11/10$250
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Sun 12/2110:50 pmMDW - SFO
2 stops24h 59mFrontier
Sat 12/2711:32 amSFO - MDW
1 stop24h 27mFrontier
Deal found 11/11$251
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Wed 11/126:05 pmORD - SFO
1 stop17h 28mFrontier
Wed 12/176:00 amSFO - ORD
1 stop30h 17mFrontier
Deal found 11/12$251
This Cheapflightsfares deal was found by Cheapflights users on 11/12. 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.
Tue 11/257:00 amORD - SFO
1 stop27h 08mFrontier
Fri 11/282:54 pmSFO - ORD
1 stop7h 16mFrontier
Deal found 11/12$252
This Frontier deal was found by Cheapflights users on 11/11. 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.
Tue 11/256:00 amORD - SFO
1 stop15h 23mFrontier
Mon 12/110:17 pmSFO - ORD
1 stop14h 55mFrontier
Deal found 11/11$253
This Southwest deal was found by Cheapflights users on 11/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:15 amMDW - SFO
Nonstop4h 45mSouthwest
Sat 12/135:30 amSFO - MDW
2 stops9h 00mSouthwest
Deal found 11/11$254
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Thu 11/276:00 amORD - SFO
1 stop15h 23mMultiple Airlines
Mon 12/18:53 pmSFO - ORD
2 stops30h 39mMultiple Airlines
Deal found 11/11$254
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/276:45 pmORD - SFO
2 stops15h 23mMultiple Airlines
Tue 12/26:00 amSFO - ORD
1 stop21h 32mMultiple Airlines
Deal found 11/10$255
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Thu 11/203:53 pmORD - SFO
2 stops29h 30mMultiple Airlines
Mon 11/248:53 pmSFO - ORD
1 stop26h 06mMultiple Airlines
Deal found 11/11$256
This Kiwi.com deal was found by Cheapflights users on 11/11. 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.
Mon 11/247:10 pmMDW - SFO
2 stops38h 58mFrontier
Fri 11/286:32 amSFO - MDW
1 stop9h 40mFrontier
Deal found 11/11$257

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 13, 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

Sat 12/6

2:45 pm-8:20 pm

1 stop7h 35m

San Francisco

Sat 12/13

10:10 am-4:10 pm

Nonstop4h 00m

$269

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Sat 12/6

9:29 am-2:23 pm

1 stop6h 54m

San Francisco

Sat 12/13

6:00 am-3:44 pm

1 stop7h 44m

$279

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Wed 12/17

1:50 pm-8:28 pm

1 stop8h 38m

San Francisco

Wed 1/7

11:46 am-10:09 pm

1 stop8h 23m

$279

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 2/11

7:30 am-1:43 pm

1 stop8h 13m

San Francisco

Fri 2/13

12:40 am-11:52 am

1 stop9h 12m

$279

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 2/7

3:35 pm-10:42 am

1 stop21h 07m

San Francisco

Fri 2/13

7:28 pm-4:33 pm

1 stop19h 05m

$283

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Mon 12/8

1:14 pm-10:31 pm

2 stops11h 17m

San Francisco

Sun 12/14

12:30 am-9:19 am

1 stop6h 49m

$286

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Thu 11/27

8:15 am-11:00 am

Nonstop4h 45m

San Francisco

Wed 12/3

6:10 am-12:15 pm

Nonstop4h 05m

$288

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Wed 12/10

8:15 am-11:00 am

Nonstop4h 45m

San Francisco

Sat 12/13

5:30 am-4:30 pm

2 stops9h 00m

$289

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 12/11

6:00 am-11:27 am

1 stop7h 27m

San Francisco

Mon 12/15

12:30 am-11:40 am

1 stop9h 10m

$289

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 1/9

2:20 pm-10:57 pm

2 stops10h 37m

San Francisco

Mon 1/12

12:47 am-8:40 am

1 stop5h 53m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

Showing 1-10 of 41 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 7, 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 June is currently the most expensive (average of $198). 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 13, 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 13, 2025.

The most flights from CHI to FR8 are scheduled on a Thursday (68 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (32 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 November 13, 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
11,281 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

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
11,281 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

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
4,236 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

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
9,015 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

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
11,049 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

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
3,114 reviews
Alaska Airlines
8.0
Very good
11,281 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

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 6h 54m. Fly via Southwest, Delta, or Alaska Airlines 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 Alaska Airlines. According to our data, you can fly for as low as $129. Users have also found prices from $130 and $140 on Delta 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 (90%), Air China (86%) and Qantas Airways (82%).

  • What are the cheapest flights from Chicago to Fremont?

    The cheapest flight price from Chicago to Fremont is $134. On average you can expect to pay $1,293. The most popular route, (Chicago O'Hare Intl - San Francisco), can usually be booked for $134.

  • 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 June is currently the most expensive (average of $198). 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 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$261FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$83Average$227FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$108Average$217FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$112Average$375FlexibilityNo cancel feeOn-time83%
DeltaCheapest$128Average$352FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$437FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$192Average$324FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$197Average$464FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$203Average$432FlexibilityNo cancel feeOn-time69%

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