Fremont

$119+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
Mar 12 — Mar 191
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Cheapflights Tip: The best prices from Chicago to Fremont are usually found in July or May, booked 83 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap 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 February 10, 2026.

This Southwest deal was found by Cheapflights users on 2/9. 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.
Mon 3/21:35 pm
MDW
-
SFO
2 stops10h 20m
Southwest
Wed 3/46:05 am
SFO
-
MDW
1 stop7h 20m
Southwest
Deal found 2/9$242
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/14:42 pm
ORD
-
SFO
1 stop30h 57m
Frontier
Wed 3/410:58 pm
SFO
-
ORD
1 stop9h 53m
Frontier
Deal found 2/9$242
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/79:15 pm
ORD
-
SFO
Nonstop5h 01m
United Airlines
Sat 3/215:15 pm
SFO
-
ORD
Nonstop4h 23m
United Airlines
Deal found 2/9$243
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 4/156:00 am
MDW
-
SFO
1 stop12h 54m
Frontier
Sat 4/186:00 am
SFO
-
MDW
2 stops14h 19m
Frontier
Deal found 2/9$244
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/55:05 am
ORD
-
SFO
1 stop18h 34m
Frontier
Mon 3/98:09 pm
SFO
-
ORD
1 stop6h 40m
Frontier
Deal found 2/9$244
This Southwest deal was found by Cheapflights users on 2/8. 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.
Tue 3/1710:05 am
MDW
-
SFO
1 stop7h 10m
Southwest
Tue 3/245:40 am
SFO
-
MDW
Nonstop4h 00m
Southwest
Deal found 2/8$245
This Kiwi.com deal was found by Cheapflights users on 2/10. 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.
Sun 3/112:56 pm
ORD
-
SFO
1 stop21h 21m
Frontier
Mon 3/28:18 pm
SFO
-
ORD
1 stop19h 50m
Frontier
Deal found 2/10$245
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 4/176:15 am
MDW
-
SFO
1 stop13h 31m
Frontier
Mon 4/206:00 am
SFO
-
MDW
2 stops14h 19m
Frontier
Deal found 2/9$246
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Sat 2/287:55 am
ORD
-
SFO
1 stop12h 03m
Frontier
Tue 3/310:55 pm
SFO
-
ORD
1 stop9h 56m
Frontier
Deal found 2/8$246
This Delta deal was found by Cheapflights users on 2/9. 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.
Sat 3/71:29 pm
MDW
-
SFO
1 stop7h 07m
Delta
Tue 3/108:00 am
SFO
-
MDW
1 stop7h 22m
Delta
Deal found 2/9$247
This American Airlines deal was found by Cheapflights users on 2/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:42 pm
ORD
-
SFO
Nonstop4h 58m
American Airlines
Mon 3/911:29 pm
SFO
-
ORD
Nonstop4h 08m
American Airlines
Deal found 2/10$247
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 3/136:05 am
MDW
-
SFO
1 stop15h 09m
Frontier
Tue 3/1710:40 pm
SFO
-
MDW
1 stop21h 39m
Frontier
Deal found 2/9$248

Find flight deals from Chicago to Fremont

Keep the following information in mind while searching for Chicago to Fremont flight deals. Data was last updated February 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$242
(Southwest)

One-way from

$119
(Southwest)

Popular in

December

Cheapest in

July

Average price

$397
Provider with most accurate pricing for Chicago (CHI)-San Francisco flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-San Francisco flights.
From Chicago (CHI) to Fremont
One-way flight from Chicago (CHI) to Fremont
Highest demand for flights based on searches. 16% potential increase in price ($66 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in February 2026

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 February 10, 2026.
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

Mon 4/27

9:45 pm-12:20 am

Nonstop4h 35m

San Francisco

Tue 5/5

2:50 pm-11:20 pm

1 stop6h 30m

$245

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Sat 5/9

6:30 am-2:53 pm

1 stop10h 23m

San Francisco

Sun 5/10

8:30 am-9:09 pm

1 stop10h 39m

$247

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 3/20

6:17 am-9:22 am

Nonstop5h 05m

San Francisco

Wed 3/25

5:15 pm-11:38 pm

Nonstop4h 23m

$247

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Fri 4/24

9:27 am-2:55 pm

1 stop7h 28m

San Francisco

Wed 5/6

11:59 pm-8:42 am

1 stop6h 43m

$247

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Wed 4/29

7:16 pm-11:54 pm

1 stop6h 38m

San Francisco

Wed 5/6

12:05 am-8:42 am

1 stop6h 37m

$247

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Sat 3/7

1:29 pm-6:36 pm

1 stop7h 07m

San Francisco

Tue 3/10

10:40 pm-8:53 am

1 stop8h 13m

$247

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Thu 3/12

9:25 pm-12:05 am

Nonstop4h 40m

San Francisco

Wed 3/18

11:25 pm-5:30 am

Nonstop4h 05m

$250

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Wed 5/6

9:00 pm-11:35 pm

Nonstop4h 35m

San Francisco

Sun 5/10

11:25 pm-5:40 am

Nonstop4h 15m

$250

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Thu 3/12

9:25 pm-12:05 am

Nonstop4h 40m

San Francisco

Mon 3/16

5:10 am-11:10 am

Nonstop4h 00m

$250

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Mon 3/9

5:00 pm-11:40 pm

1 stop8h 40m

San Francisco

Sat 3/14

5:15 am-11:10 am

Nonstop3h 55m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 45 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 February 6, 2026.

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 February is currently the most expensive (average of $208). 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 February 10, 2026.

It’s typically best to fly out from Chicago to Fremont in the evening. Doing so could potentially save you 27% on the flight price compared to flying in the morning, 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 February 7, 2026.

Travelers seeking maximum savings on their Chicago to Fremont flight should consider departing on Tuesday afternoons 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 February 10, 2026.

The most flights from CHI to FR8 are scheduled on a Tuesday (46 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (3 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 February 10, 2026.
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.

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Overall

8.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

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 35m. Fly via Southwest, Delta, or United 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 JetBlue. According to our data, you can fly for as low as $73. Users have also found prices from $85 and $98 on Frontier and Alaska 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 (89%), British Airways (73%) and Lufthansa (72%).

  • What are the cheapest flights from Chicago to Fremont?

    The cheapest flight price from Chicago to Fremont is $116. On average you can expect to pay $1,172. The most popular route, (Chicago O'Hare Intl - San Francisco), can usually be booked for $170.

  • 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 February is currently the most expensive (average of $208). 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

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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.

Top 10 airlines flying from Chicago to Fremont

Discover the top 10 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 February 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$80Average$225FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$83Average$216FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$108Average$217FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$112Average$374FlexibilityNo cancel feeOn-time83%
DeltaCheapest$128Average$347FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$425FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$183Average$304FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$186Average$322FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$197Average$427FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$207Average$427FlexibilityNo cancel feeOn-time69%

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