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$109+ Cheap flights from Oakland, CA (OAK) 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
OAK — CHI
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Find cheap flights from Oakland to Chicago with Cheapflights

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Cheapflights Tip: The best prices from Oakland to Chicago are usually found in July or February, booked 23 days in advance, depart on a Wednesday or Sunday and return on a Monday

Cheap flight deals from Oakland to Chicago

Cheapest flights from Oakland to Chicago
Explore the most affordable flight options available from Oakland to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This Southwest deal was found by Cheapflights users on 1/28. 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.
Wed 3/1811:55 pm
OAK
-
MDW
Nonstop4h 00m
Southwest
Sat 3/219:40 pm
MDW
-
OAK
Nonstop4h 40m
Southwest
Deal found 1/28$217
This Southwest deal was found by Cheapflights users on 1/28. 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 3/245:50 am
OAK
-
MDW
Nonstop4h 05m
Southwest
Tue 3/3111:50 am
MDW
-
OAK
2 stops8h 40m
Southwest
Deal found 1/28$232
This Southwest deal was found by Cheapflights users on 1/26. 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 3/319:10 pm
OAK
-
MDW
1 stop5h 50m
Southwest
Sat 4/46:25 am
MDW
-
OAK
1 stop7h 15m
Southwest
Deal found 1/26$237
This Delta deal was found by Cheapflights users on 1/28. 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.
Tue 5/512:34 pm
OAK
-
ORD
1 stop6h 44m
Delta
Wed 5/136:59 pm
ORD
-
OAK
1 stop6h 50m
Delta
Deal found 1/28$237
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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 5/122:09 pm
OAK
-
ORD
1 stop7h 50m
Alaska Airlines
Tue 5/193:43 pm
ORD
-
OAK
1 stop9h 54m
Alaska Airlines
Deal found 1/26$240
This Delta deal was found by Cheapflights users on 1/28. 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 2/2812:40 pm
OAK
-
ORD
1 stop7h 12m
Delta
Wed 3/42:05 pm
ORD
-
OAK
2 stops11h 46m
Delta
Deal found 1/28$242
This CheapOair deal was found by Cheapflights users on 1/27. 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.
Tue 5/127:19 pm
OAK
-
ORD
1 stop21h 27m
Alaska Airlines
Wed 5/203:43 pm
ORD
-
OAK
1 stop9h 54m
Alaska Airlines
Deal found 1/27$243
This Southwest deal was found by Cheapflights users on 1/28. 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 3/95:45 am
OAK
-
MDW
Nonstop4h 00m
Southwest
Wed 3/119:00 pm
MDW
-
OAK
Nonstop4h 40m
Southwest
Deal found 1/28$250
This CheapOair deal was found by Cheapflights users on 1/26. 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.
Wed 4/292:09 pm
OAK
-
ORD
1 stop7h 50m
Alaska Airlines
Mon 5/47:59 pm
ORD
-
OAK
1 stop20h 39m
Alaska Airlines
Deal found 1/26$250
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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.
Sat 5/163:12 pm
OAK
-
ORD
1 stop6h 29m
Alaska Airlines
Wed 5/203:43 pm
ORD
-
OAK
1 stop9h 54m
Alaska Airlines
Deal found 1/26$253
This Southwest deal was found by Cheapflights users on 1/27. 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.
Wed 3/411:10 am
OAK
-
MDW
Nonstop4h 05m
Southwest
Wed 3/119:00 pm
MDW
-
OAK
Nonstop4h 40m
Southwest
Deal found 1/27$255
This CheapOair deal was found by Cheapflights users on 1/28. 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 2/286:15 am
OAK
-
ORD
1 stop8h 18m
Alaska Airlines
Wed 3/47:00 am
ORD
-
OAK
1 stop11h 37m
Alaska Airlines
Deal found 1/28$257

Find flight deals from Oakland to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Oakland (OAK) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$217
(Southwest)

One-way from

$109
(Southwest)

Popular in

December

Cheapest in

July

Average price

$514

Good round-trip deal

$358 or less

Good one-way deal

$141 or less
Provider with most accurate pricing for Oakland-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Oakland-Chicago (CHI) flights.
Search Deals
From Oakland to Chicago (CHI)
Search Deals
One-way flight from Oakland to Chicago (CHI)
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($145 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Oakland to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Oakland to Chicago (CHI).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oakland 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 January 29, 2026.
Use the filters below to find and compare flights from Oakland to Chicago that are best for you.

Fly from

Oakland

Fly to

Chicago

Route

Depart

Return

Price

OaklandChicago

OAK - MDW

OAKMDW

Oakland

Tue 3/31

11:55 pm-5:55 am

Nonstop4h 00m

Chicago Midway

Sat 4/4

9:40 pm-12:20 am

Nonstop4h 40m

$217

OaklandChicago

OAK - MDW

OAKMDW

Oakland

Tue 3/24

5:50 am-11:55 am

Nonstop4h 05m

Chicago Midway

Tue 3/31

9:00 pm-11:40 pm

Nonstop4h 40m

$217

OaklandChicago

OAK - ORD

OAKORD

Oakland

Tue 3/24

6:05 am-3:00 pm

1 stop6h 55m

Chicago O'Hare Intl

Tue 3/31

6:15 am-12:30 pm

1 stop8h 15m

$237

OaklandChicago

OAK - ORD

OAKORD

Oakland

Tue 3/24

12:35 pm-9:34 pm

1 stop6h 59m

Chicago O'Hare Intl

Tue 3/31

1:57 pm-11:46 pm

2 stops11h 49m

$242

OaklandChicago

OAK - MDW

OAKMDW

Oakland

Mon 3/9

5:45 am-11:45 am

Nonstop4h 00m

Chicago Midway

Wed 3/11

9:00 pm-11:40 pm

Nonstop4h 40m

$250

OaklandChicago

OAK - MDW

OAKMDW

Oakland

Fri 4/10

11:55 pm-6:00 am

Nonstop4h 05m

Chicago Midway

Wed 4/15

8:50 pm-11:25 pm

Nonstop4h 35m

$250

OaklandChicago

OAK - ORD

OAKORD

Oakland

Tue 2/24

6:15 am-11:56 pm

1 stop15h 41m

Chicago O'Hare Intl

Wed 2/25

3:54 pm-10:49 pm

1 stop8h 55m

$260

OaklandChicago

OAK - ORD

OAKORD

Oakland

Wed 3/18

12:35 pm-9:34 pm

1 stop6h 59m

Chicago O'Hare Intl

Wed 3/25

7:10 pm-11:46 pm

1 stop6h 36m

$268

OaklandChicago

OAK - ORD

OAKORD

Oakland

Sun 3/15

6:15 am-12:01 pm

1 stop27h 46m

Chicago O'Hare Intl

Tue 3/17

7:00 am-4:37 pm

1 stop11h 37m

$270

OaklandChicago

OAK - MDW

OAKMDW

Oakland

Tue 4/21

8:20 am-4:35 pm

1 stop6h 15m

Chicago Midway

Fri 4/24

5:25 pm-10:30 pm

1 stop7h 05m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 42 results
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Compare providers for flights from Oakland to Chicago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Oakland to Chicago in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Oakland, California-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Oakland, California-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Oakland, California-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Oakland, California-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Oakland, California-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Oakland to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Oakland 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 Oakland to Chicago

How far ahead should I book a flight from Oakland, California to Chicago?

Use this chart to determine the optimal time to book a round-trip flight from Oakland to Chicago. Price data was last updated on January 23, 2026.

The best time to book flights from Oakland, California to Chicago is 23 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 Oakland, California to Chicago?

Currently, October is the cheapest month in which you can book a flight from Oakland, California to Chicago (average of $125). Flying from Oakland, California to Chicago in December is currently the most expensive (average of $233). 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 OAK to CHI?

Find hourly flight availability from Oakland 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 January 29, 2026.

One of the essential ways to save on airfare from Oakland, California to Chicago is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 54% on airfare.

How much does it cost to fly round-trip from Oakland, California to Chicago?

The best insider tips for Oakland to Chicago flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Oakland to Chicago trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MDW

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Bill Fink

Bill Fink

Expert on OAK

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more

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 January 29, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and United Airlines from Oakland to Chicago 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
11,805 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,805 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,267 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,216 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Spirit Airlines
6.3
Okay
8,390 reviews
Alaska Airlines
8.0
Very good
11,805 reviews

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Oakland to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Oakland to Chicago?

    Located just 7.0 mi from the city center, Oakland is the airport most travelers will use when flying to Chicago from Oakland. Booking flights from Oakland (OAK) to Chicago should be relatively easy as there are 0 daily outbound flights to Chicago from 4 different airlines.

  • How long is the flight from Oakland, California to Chicago?

    For as low as $217, Southwest can have you in Chicago from Oakland, California in 4h. Airlines will cover a distance of 1839 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Oakland, California to Chicago round-trip?

    Cheapflights users have booked flights from Oakland, California to Chicago round-trip from $108. Other airlines that can offer you cheap pricing are United Airlines, from $163, and Alaska Airlines, from $189. Users have found that Spirit Airlines is 74% cheaper than the other options available to this destination.

  • What are the most popular routes from Oakland, California to Chicago?

    The most popular flight routes from Oakland, California to Chicago are Oakland - Chicago O'Hare Intl, Oakland - Chicago Midway and Oakland - Chicago Greater Rockford.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oakland 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 Oakland, California to Chicago?

    Currently, October is the cheapest month in which you can book a flight from Oakland, California to Chicago (average of $125). Flying from Oakland, California to Chicago in December is currently the most expensive (average of $233). 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 Chicago?

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

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Alternative routes for Oakland to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Oakland to Chicago

Discover the top 4 airlines that operate flights from Oakland 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$108Average$220FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$163Average$359FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$189Average$532FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$246Average$421FlexibilityNo cancel feeOn-time63%

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