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$101+ Cheap flights from Chicago (CHI) to Berkeley, 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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SFO
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Berkeley 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 Berkeley

Keep the following information in mind while searching for Chicago to Berkeley flight deals. Data was last updated September 15, 2025.

Round-trip from

$208
(Frontier)

One-way from

$101
(Cheapflightsfares)

Popular in

December

Cheapest in

July

Average price

$297
From Chicago (CHI) to Berkeley
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One-way flight from Chicago (CHI) to Berkeley
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Highest demand for flights based on searches. 8% potential increase in price ($28 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Chicago to Berkeley

Cheapest flights from Chicago to Berkeley
Explore the most affordable flight options available from Chicago to Berkeley. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/218:20 amORD - SFO
1 stop7h 41mMultiple Airlines
Sun 10/268:21 pmSFO - ORD
1 stop11h 15mMultiple Airlines
Deal found 9/15$208
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:54 pmORD - SFO
1 stop25h 27mFrontier
Thu 9/2510:37 pmSFO - ORD
1 stop20h 22mFrontier
Deal found 9/15$210
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/205:25 amORD - SFO
1 stop12h 35mMultiple Airlines
Wed 10/228:00 amSFO - ORD
1 stop10h 48mMultiple Airlines
Deal found 9/15$211
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:07 pmORD - SFO
1 stop7h 01mFrontier
Thu 10/910:25 pmSFO - ORD
1 stop12h 33mFrontier
Deal found 9/14$213
This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/21:53 pmMDW - SFO
1 stop7h 15mFrontier
Thu 10/93:25 pmSFO - MDW
1 stop7h 11mFrontier
Deal found 9/13$214
This Frontier deal was found by Cheapflights users on 9/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/195:25 amORD - SFO
1 stop12h 35mFrontier
Fri 10/2410:23 pmSFO - ORD
1 stop11h 12mFrontier
Deal found 9/13$214
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/111:15 amORD - SFO
1 stop12h 06mMultiple Airlines
Mon 10/611:00 pmSFO - ORD
1 stop12h 47mMultiple Airlines
Deal found 9/13$215
This CheapOair deal was found by Cheapflights users on 9/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:15 amMDW - SFO
1 stop17h 08mFrontier
Fri 10/315:53 pmSFO - MDW
2 stops25h 42mFrontier
Deal found 9/13$216
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amORD - SFO
2 stops10h 09mFrontier
Mon 11/173:35 pmSFO - ORD
1 stop6h 40mFrontier
Deal found 9/14$216
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Tue 10/147:15 amORD - SFO
1 stop17h 12mFrontier
Thu 10/1610:25 pmSFO - ORD
1 stop12h 33mFrontier
Deal found 9/13$217
This CheapOair deal was found by Cheapflights users on 9/14. 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.
Sat 9/276:15 amMDW - SFO
1 stop17h 06mFrontier
Mon 9/2911:00 pmSFO - MDW
1 stop14h 58mFrontier
Deal found 9/14$218
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/218:20 amORD - SFO
1 stop7h 41mAlaska Airlines
Wed 10/2210:26 amSFO - ORD
1 stop11h 33mAlaska Airlines
Deal found 9/15$218

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Berkeley 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 September 15, 2025.
Use the filters below to find and compare flights from Chicago to Berkeley that are best for you.

Fly from

Chicago

Fly to

Berkeley

Route

Depart

Return

Price

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 12/12

9:15 am-9:46 pm

1 stop14h 31m

San Francisco

Mon 12/15

9:57 pm-2:09 pm

1 stop14h 12m

$241

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 10/8

6:05 pm-11:33 pm

1 stop7h 28m

San Francisco

Sat 10/11

12:35 am-8:30 am

1 stop5h 55m

$241

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Wed 10/22

9:13 pm-11:59 pm

Nonstop4h 46m

San Francisco

Tue 10/28

11:44 pm-6:02 am

Nonstop4h 18m

$255

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Thu 12/11

9:15 am-9:46 pm

1 stop14h 31m

San Francisco

Sun 12/14

7:00 am-6:54 pm

1 stop9h 54m

$263

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Fri 12/5

3:05 pm-8:06 am

1 stop19h 01m

San Francisco

Sun 12/7

7:00 am-11:50 pm

1 stop14h 50m

$263

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 10/18

7:00 am-12:23 pm

1 stop7h 23m

San Francisco

Tue 10/28

7:00 am-6:59 pm

1 stop9h 59m

$270

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Sat 12/13

2:45 pm-8:20 pm

1 stop7h 35m

San Francisco

Mon 1/12

2:00 pm-9:50 pm

1 stop5h 50m

$272

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Wed 11/5

3:15 pm-9:50 pm

1 stop8h 35m

San Francisco

Thu 11/13

5:00 am-4:20 pm

2 stops9h 20m

$274

ChicagoSan Francisco

ORD - SFO

ORDSFO

Chicago O'Hare Intl

Sat 10/25

10:35 am-1:21 pm

Nonstop4h 46m

San Francisco

Wed 10/29

5:10 am-11:30 am

Nonstop4h 20m

$287

ChicagoSan Francisco

MDW - SFO

MDWSFO

Chicago Midway

Sat 10/25

8:15 am-10:50 am

Nonstop4h 35m

San Francisco

Wed 10/29

6:30 am-12:35 pm

Nonstop4h 05m

$287

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 45 results
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Best time to book a flight from Chicago to Berkeley

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

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

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

The best time to book flights from Chicago to Berkeley is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Chicago to Berkeley (average of $276). Flying from Chicago to Berkeley in June is currently the most expensive (average of $357). 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 B9R?

Find hourly flight availability from Chicago to Berkeley. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Chicago to Berkeley, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

Travelers seeking maximum savings on their Chicago to Berkeley flight should consider departing on Thursday evenings 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 Berkeley

Explore weekly flight availability from Chicago to Berkeley. 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 September 15, 2025.

The most flights from CHI to B9R are scheduled on a Monday (95 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (60 on average).

How much does it cost to fly round-trip from Chicago to Berkeley?

Reviews of airlines servicing Berkeley

Get insights into the airlines that provide service to Berkeley. 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 Berkeley. Reviews last updated September 15, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and United Airlines from Chicago to Berkeley to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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
3,172 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.0

Overall

8.0

Boarding

8.1

Comfort

7.8

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 Berkeley. 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 Berkeley?

    A quick flight from Chicago to Berkeley can take about 4h 46m. Alaska Airlines provides one of the quickest options available for as low as $255. The distance between Chicago and Berkeley is about 1841 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Chicago to Berkeley one-way?

    The cheapest airlines for a one-way flight from Chicago to Berkeley are Hawaiian Airlines ($109), Alaska Airlines ($115), and Frontier ($127).

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

    The top 3 most reliable airlines when flying from Chicago to Berkeley are Air China (79%), ANA (79%) and Austrian Airlines (75%).

  • What are the cheapest flights from Chicago to Berkeley?

    While on average a flight from Chicago to Berkeley is generally $924, our data shows the cheapest flight currently is $89. When looking at the most popular route, (Chicago O'Hare Intl - San Francisco), you can expect to pay $153 for that flight.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Chicago to Berkeley (average of $276). Flying from Chicago to Berkeley in June is currently the most expensive (average of $357). 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 Berkeley

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 Berkeley

Discover the top 9 airlines that operate flights from Chicago to Berkeley. 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$83Average$238FlexibilityNo cancel feeOn-time65%
FrontierCheapest$90Average$242FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$108Average$217FlexibilityNo cancel feeOn-time85%
Sun Country AirCheapest$112Average$335FlexibilityNo cancel feeOn-time83%
DeltaCheapest$128Average$351FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$180Average$428FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$188Average$328FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$190Average$418FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$204Average$434FlexibilityNo cancel feeOn-time69%

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