HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chicago

$99+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — CHI
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
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 January, booked 76 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Fremont to Chicago

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

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$179
(American Airlines)

One-way from

$99
(Frontier)

Popular in

December

Cheapest in

February

Average price

$310
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. 5% potential increase in price ($21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find 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 April 17, 2025.

This American Airlines deal was found by Cheapflights users on 4/16. 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.
Sat 5/2411:49 pmSFO - ORD
Nonstop4h 24mAmerican Airlines
Fri 5/304:51 pmORD - SFO
Nonstop4h 46mAmerican Airlines
Deal found 4/16$179
This Southwest deal was found by Cheapflights users on 4/16. 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 5/247:20 amSFO - MDW
1 stop7h 30mSouthwest
Fri 5/306:10 pmMDW - SFO
1 stop7h 40mSouthwest
Deal found 4/16$198
This Frontier deal was found by Cheapflights users on 4/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2211:38 pmSFO - MDW
1 stop8h 27mFrontier
Thu 4/246:15 amMDW - SFO
1 stop8h 30mFrontier
Deal found 4/17$209
This SmartFares deal was found by Cheapflights users on 4/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2412:33 pmSFO - ORD
Nonstop4h 26mAlaska Airlines
Fri 5/307:59 pmORD - SFO
Nonstop4h 50mAlaska Airlines
Deal found 4/17$209
This CheapOair deal was found by Cheapflights users on 4/17. 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.
Sat 5/248:45 pmSFO - ORD
1 stop25h 35mFrontier
Tue 5/275:03 pmORD - SFO
1 stop19h 25mFrontier
Deal found 4/17$210
This Hawaiian Airlines deal was found by Cheapflights users on 4/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/128:09 pmSFO - ORD
1 stop7h 56mHawaiian Airlines
Wed 6/187:18 pmORD - SFO
Nonstop4h 48mHawaiian Airlines
Deal found 4/15$217
This Southwest deal was found by Cheapflights users on 4/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/76:25 amSFO - ORD
1 stop9h 30mSouthwest
Sat 6/76:55 pmORD - SFO
1 stop6h 35mSouthwest
Deal found 4/17$222
This Trip.com deal was found by Cheapflights users on 4/16. 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.
Thu 5/159:59 pmSFO - ORD
1 stop23h 33mMultiple Airlines
Tue 5/208:37 amORD - SFO
1 stop13h 50mMultiple Airlines
Deal found 4/16$224
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 5/95:05 pmSFO - ORD
Nonstop4h 22mUnited Airlines
Sun 5/115:05 amORD - SFO
1 stop6h 31mUnited Airlines
Deal found 4/16$227
This Delta deal was found by Cheapflights users on 4/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2312:40 amSFO - MDW
1 stop5h 56mDelta
Wed 6/1810:26 amMDW - SFO
1 stop10h 21mDelta
Deal found 4/15$257
This Delta deal was found by Cheapflights users on 4/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1412:49 amSFO - ORD
1 stop5h 36mDelta
Sat 6/216:00 amORD - SFO
1 stop6h 59mDelta
Deal found 4/15$257
This Sun Country Air deal was found by Cheapflights users on 4/17. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1311:59 pmSFO - ORD
1 stop19h 40mSun Country Air
Mon 6/166:20 pmORD - SFO
1 stop6h 33mSun Country Air
Deal found 4/17$325

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 April 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

Sat 5/24

11:49 pm-6:13 am

Nonstop4h 24m

Chicago O'Hare Intl

Fri 5/30

4:51 pm-7:37 pm

Nonstop4h 46m

$179

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Sat 5/24

7:20 am-4:50 pm

1 stop7h 30m

Chicago Midway

Fri 5/30

6:10 pm-11:50 pm

1 stop7h 40m

$198

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 5/24

12:33 pm-6:59 pm

Nonstop4h 26m

Chicago O'Hare Intl

Fri 5/30

7:59 pm-10:49 pm

Nonstop4h 50m

$209

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 5/24

8:45 pm-12:20 am

1 stop25h 35m

Chicago O'Hare Intl

Tue 5/27

5:03 pm-10:28 am

1 stop19h 25m

$210

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Sat 5/17

11:02 am-2:48 pm

1 stop25h 46m

Chicago Midway

Mon 5/19

1:19 pm-1:15 pm

1 stop25h 56m

$211

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 5/17

12:33 pm-6:59 pm

Nonstop4h 26m

Chicago O'Hare Intl

Wed 5/21

11:10 am-8:30 pm

1 stop11h 20m

$213

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 6/7

6:25 am-5:55 pm

1 stop9h 30m

Chicago O'Hare Intl

Sat 6/7

6:55 pm-11:30 pm

1 stop6h 35m

$222

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 5/9

6:55 pm-1:16 am

Nonstop4h 21m

Chicago O'Hare Intl

Mon 5/12

5:05 am-9:36 am

1 stop6h 31m

$227

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Fri 5/23

12:40 am-8:36 am

1 stop5h 56m

Chicago Midway

Fri 5/30

6:00 am-11:45 am

1 stop7h 45m

$257

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Fri 5/30

12:40 am-11:47 am

1 stop9h 07m

Chicago O'Hare Intl

Sat 6/7

6:24 am-11:30 am

1 stop7h 06m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 25 results
1
2
3

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 April 11, 2025.

Booking 76 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, August is the cheapest month in which you can book a flight from Fremont to Chicago (average of $245). Flying from Fremont to Chicago in March is currently the most expensive (average of $321). 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 April 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Fremont to Chicago as you normally would.

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 June 30, 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. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Fremont to Chicago

Explore weekly flight availability from Fremont to Chicago. 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 April 17, 2025.

The most flights from FR8 to CHI are scheduled on a Thursday (83 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (48 on average).

Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 April 17, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Fremont to Chicago have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,887 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,280 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,916 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,380 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,667 reviews
Alaska Airlines
8.0
Very good
9,887 reviews

Boarding

8.1

Comfort

7.9

Crew

8.5

Entertainment

7.1

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • 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 $99. However, be on the lookout for offers from Hawaiian Airlines and Southwest, 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 Royal Jordanian (97%), Brussels Airlines (92%) or Austrian Airlines (90%) 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 $851 for a flight from Fremont to Chicago. The cheapest flight overall is $98 while the most popular route, (San Francisco - Chicago O'Hare Intl) is currently priced at $171.

  • 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, August is the cheapest month in which you can book a flight from Fremont to Chicago (average of $245). Flying from Fremont to Chicago in March is currently the most expensive (average of $321). 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 Fremont?

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

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.
San Francisco to O'Hare Intl flights
Los Angeles to O'Hare Intl flights
San Francisco to Midway flights
Ontario to O'Hare Intl flights
Santa Ana to O'Hare Intl flights
Los Angeles to Midway flights
San Diego to O'Hare Intl flights
Burbank to O'Hare Intl flights
San Jose to O'Hare Intl flights
Oakland to O'Hare Intl flights
Las Vegas to O'Hare Intl flights
Sacramento to O'Hare Intl flights
Ontario to Midway flights
San Diego to Midway flights
San Francisco to St. Louis flights
Las Vegas to Midway flights
Santa Ana to Midway flights
San Jose to Midway flights
Los Angeles to St. Louis flights
Fresno to O'Hare Intl flights
Reno to O'Hare Intl flights
Oakland to Midway flights
Palm Springs to O'Hare Intl flights
Long Beach to O'Hare Intl flights
Ontario to St. Louis flights
Las Vegas to St. Louis flights
Sacramento to Midway flights
San Diego to St. Louis flights
Burbank to Midway flights
Sacramento to St. Louis flights
Fresno to Midway flights
Reno to Midway flights
Santa Ana to St. Louis flights
Burbank to St. Louis flights
Long Beach to Midway flights
Santa Barbara to O'Hare Intl flights
Palm Springs to Midway flights
Santa Ana to Moline flights
Bakersfield to O'Hare Intl flights
San Luis Obispo to O'Hare Intl flights
Los Angeles to Moline flights
Monterey to O'Hare Intl flights
Oakland to St. Louis flights
Los Angeles to Rockford flights
Santa Rosa to O'Hare Intl flights
Long Beach to St. Louis flights
San Diego to Moline flights
Medford to O'Hare Intl flights
San Jose to St. Louis flights
San Francisco to Moline 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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$61Average$241FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$113Average$263FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$115Average$317FlexibilityNo cancel feeOn-time75%
Hawaiian AirlinesCheapest$138Average$277FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$185Average$397FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$203Average$456FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$208Average$450FlexibilityNo cancel feeOn-time63%
DeltaCheapest$235Average$398FlexibilityNo cancel feeOn-timeN/A

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.