What is the cheapest airline that flies from Oakland to Illinois?

Southwest, Alaska Airlines, and Delta are the most popular carriers operating from Oakland to Illinois

What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Oakland, California according to our data. United Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 8 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from Oakland, California to Illinois on average per day?

As of June 2026, 3 flights take off from Oakland, California and land in Illinois each day. The most common flight departure time for this route is 11:00PM, with 75% of daily flights taking off in the evening.

How many flights depart from Oakland, California to Illinois on average per week?

The number of flights available between Oakland, California and Illinois is 22 per week as of June 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

When did momondo last update prices for flights from Oakland Airport to Illinois?

Prices for flights from Oakland Airport to Illinois were last updated today.

How many operators does momondo search for flights from Oakland Airport to Illinois?

The number of operators available for flights from Oakland Airport to Illinois is 4 as of June 2026.

How old do you have to be to fly from Oakland Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oakland Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$117 Cheap Flights from Oakland, California to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Oakland, California to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 5:50 pm

OAK

STL

7h 50m

1 stop

5:00 pm - 9:45 pm

STL

OAK

6h 45m

1 stop

$314Southwest

Wed, Sep 2 - Wed, Sep 9

12:15 pm - 10:45 pm

OAK

STL

8h 30m

2 stops

5:35 am - 9:25 am

STL

OAK

5h 50m

1 stop

$319Southwest

Wed, Sep 2 - Wed, Sep 9

12:15 pm - 10:45 pm

OAK

STL

8h 30m

2 stops

7:35 am - 2:45 pm

STL

OAK

9h 10m

2 stops

$324Southwest

Wed, Sep 2 - Wed, Sep 9

8:04 am - 5:10 pm

OAK

STL

7h 06m

1 stop

3:19 pm - 10:50 pm

STL

OAK

9h 31m

1 stop

$335Alaska Airlines

Wed, Sep 9 - Sat, Sep 12

8:04 am - 5:10 pm

OAK

STL

7h 06m

1 stop

6:29 am - 1:19 pm

STL

OAK

8h 50m

1 stop

$346Alaska Airlines

Wed, Sep 23 - Sat, Sep 26

5:05 am - 1:05 pm

OAK

STL

6h 00m

1 stop

6:20 pm - 10:00 pm

STL

OAK

5h 40m

1 stop

$347Southwest

Thu, Oct 22 - Tue, Oct 27

1:15 pm - 11:01 pm

OAK

STL

7h 46m

2 stops

6:59 pm - 11:49 pm

STL

OAK

6h 50m

1 stop

$351Delta

Wed, Sep 9 - Sat, Sep 12

8:39 pm - 7:36 pm

OAK

STL

20h 57m

1 stop

8:21 pm - 11:18 am

STL

OAK

16h 57m

1 stop

$357Frontier

Thu, Aug 20 - Sun, Aug 23

6:00 am - 5:27 pm

OAK

ORD

9h 27m

2 stops

7:45 am - 11:46 am

ORD

OAK

6h 01m

1 stop

$360Delta

Sat, Jul 4 - Sat, Jul 11

10:37 am - 7:10 pm

OAK

BRL

30h 33m

2 stops

9:10 am - 2:10 pm

BRL

OAK

31h 00m

2 stops

$720Multiple Airlines

Sat, Jun 20 - Sun, Aug 16

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Delta flights from Oakland, California to Illinois

Our best Delta deals on Oakland, California to Illinois flight tickets

Delta

Sep 9

OAK1:15 pmOakland

7h 46m

2 stops

STL11:01 pmLambert-St Louis

Sep 12

STL6:59 pmLambert-St Louis

6h 50m

1 stop

OAK11:49 pmOakland

$351

Delta

Jul 4

OAK6:00 amOakland

9h 27m

2 stops

ORD5:27 pmChicago O'Hare Intl

Jul 11

ORD7:45 amChicago O'Hare Intl

6h 01m

1 stop

OAK11:46 amOakland

$360

Delta

Aug 24

OAK5:00 pmOakland

26h 47m

2 stops

ORD9:47 pmChicago O'Hare Intl

Aug 29

ORD6:00 amChicago O'Hare Intl

7h 48m

2 stops

OAK11:48 amOakland

$362

Alaska Airlines flights from Oakland, California to Illinois

Our best Alaska Airlines deals on Oakland, California to Illinois flight tickets

Alaska Airlines

Sep 9

OAK8:04 amOakland

7h 06m

1 stop

STL5:10 pmLambert-St Louis

Sep 12

STL3:19 pmLambert-St Louis

9h 31m

1 stop

OAK10:50 pmOakland

$335

Alaska Airlines

Sep 2

OAK6:48 amOakland

10h 33m

1 stop

ORD7:21 pmChicago O'Hare Intl

Sep 6

ORD6:01 amChicago O'Hare Intl

7h 05m

1 stop

OAK11:06 amOakland

$352

Alaska Airlines

Aug 2

OAK7:52 amOakland

19h 08m

1 stop

ORD5:00 amChicago O'Hare Intl

Aug 5

ORD7:20 amChicago O'Hare Intl

11h 35m

1 stop

OAK4:55 pmOakland

$353

momondo Fare Finder

Use the filters below to find and compare flights from Oakland, California to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 9/2

8:00 am-5:50 pm

1 stop7h 50m

Lambert-St Louis

Wed 9/9

5:00 pm-9:45 pm

1 stop6h 45m

$314

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 9/2

12:15 pm-10:45 pm

2 stops8h 30m

Lambert-St Louis

Wed 9/9

5:35 am-9:25 am

1 stop5h 50m

$319

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 9/2

12:15 pm-10:45 pm

2 stops8h 30m

Lambert-St Louis

Wed 9/9

7:35 am-2:45 pm

2 stops9h 10m

$324

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 9/9

8:04 am-5:10 pm

1 stop7h 06m

Lambert-St Louis

Sat 9/12

3:19 pm-10:50 pm

1 stop9h 31m

$335

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 9/23

8:04 am-5:10 pm

1 stop7h 06m

Lambert-St Louis

Sat 9/26

6:29 am-1:19 pm

1 stop8h 50m

$346

Quickest round-trip

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Thu 10/22

5:05 am-1:05 pm

1 stop6h 00m

Lambert-St Louis

Tue 10/27

6:20 pm-10:00 pm

1 stop5h 40m

$347

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Wed 9/9

1:15 pm-11:01 pm

2 stops7h 46m

Lambert-St Louis

Sat 9/12

6:59 pm-11:49 pm

1 stop6h 50m

$351

OaklandSt. Louis

OAK - STL

OAKSTL

Oakland

Thu 8/20

8:39 pm-7:36 pm

1 stop20h 57m

Lambert-St Louis

Sun 8/23

8:21 pm-11:18 am

1 stop16h 57m

$357

OaklandChicago

OAK - ORD

OAKORD

Oakland

Sat 7/4

6:00 am-5:27 pm

2 stops9h 27m

Chicago O'Hare Intl

Sat 7/11

7:45 am-11:46 am

1 stop6h 01m

$360

OaklandBurlington

OAK - BRL

OAKBRL

Oakland

Sat 6/20

10:37 am-7:10 pm

2 stops30h 33m

Burlington

Sun 8/16

9:10 am-2:10 pm

2 stops31h 00m

$720

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Oakland, California to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Oakland, California is in April. Flight prices, which tend to average around $93, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of April, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $124.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Oakland, California to Illinois is on a Sunday when prices can be found for as low as $457. Flights from Oakland, California to Illinois on a Thursday will generally be more expensive and average around $503. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Oakland, California to Illinois during this time can be as low as $338. Flights at noon are often more expensive with an average ticket price of $791.

What is the cheapest Oakland to Illinois flight route?

Fly from Oakland to Chicago Midway for the best Oakland - Illinois flight prices

What cabin class options are available on Oakland, California to Illinois flights?

There is only 1 cabin class available to choose from on Oakland, California to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Oakland, California to Illinois flights?

You could potentially save up to 8% on your flight if you consider stops on a Oakland, California to Illinois flight.

Cheap Oakland, California to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oakland, California to Illinois

Best Price Found	$239
Fastest flight time	4h 00m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Oakland, California in the past 72 hours is $239. The best round-trip flight deal from Oakland, California to Illinois found on momondo in the last 72 hours is $456.

The fastest flight from Oakland, California to Illinois takes 4h 00m

Direct flights go from Oakland, California to Illinois every day.

There are 98 airports in Illinois. From Oakland, California there are direct flights to Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying from Oakland, California to Illinois

When did momondo last update prices for flights from Oakland Airport to Illinois?
Prices for flights from Oakland Airport to Illinois were last updated today.
How many operators does momondo search for flights from Oakland Airport to Illinois?
The number of operators available for flights from Oakland Airport to Illinois is 4 as of June 2026.
How old do you have to be to fly from Oakland Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Oakland Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The necessary travel and health documents for your Illinois trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Oakland, California to Illinois?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Oakland, California to Illinois is Boeing 737-800 Passenger/BBJ2 (winglets) (24.20% of total bookings). The next most popular plane models are Boeing 737 MAX 8 (18.66%), Airbus A321neo (8.16%), and Boeing 737 MAX 9 (5.25%).

Best airlines flying from Oakland, California to Illinois

Compare and see reviews for airlines that fly from Oakland, California to Illinois with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $207	Free Cancellation	Rating 7.4 9,808 reviews	Search United Airlines flights
Southwest	PriceFrom $252	Free Cancellation	Rating 7.9 4,235 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $260	Free Cancellation	Rating 7.9 12,478 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Oakland to Illinois?

Finding the right flight to Illinois from Oakland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Oakland to Illinois with flexible booking policies on momondo?

Flights from Oakland to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Oakland to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Oakland to Illinois.

I’m not ready to book a flight from Oakland to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Oakland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Illinois trip

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Popular cities

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Complete your trip

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Popular cities in Illinois

Flights to New Yorkfrom $72

Flights to Los Angelesfrom $50

Flights to Miamifrom $62

Flights to Orlandofrom $64

Flights to Chicagofrom $73

Flights to San Franciscofrom $87

Flights to Las Vegasfrom $50

Flights to Washington, D.C.from $54

Flights to Bostonfrom $70

Flights to Atlantafrom $66

Flights to Dallasfrom $82

Flights to Fort Lauderdalefrom $55

Cheap flights from Oakland, California to Illinois from $117

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Oakland, California to Illinois departing on 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Oakland, California to Illinois

Our best Delta deals on Oakland, California to Illinois flight tickets

Alaska Airlines flights from Oakland, California to Illinois

Our best Alaska Airlines deals on Oakland, California to Illinois flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Oakland, California to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Oakland, California to Illinois

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

What is the cheapest time of day to depart on your flight to Illinois?

What is the cheapest Oakland to Illinois flight route?

What cabin class options are available on Oakland, California to Illinois flights?

Can stopping save me money on Oakland, California to Illinois flights?

What is the cheapest airline that flies from Oakland to Illinois?

What airlines fly to Illinois?

How many flights depart from Oakland, California to Illinois on average per day?

How many flights depart from Oakland, California to Illinois on average per week?

Cheap Oakland, California to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Oakland, California to Illinois

Best Price Found

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying from Oakland, California to Illinois

Best airlines flying from Oakland, California to Illinois

Compare and see reviews for airlines that fly from Oakland, California to Illinois with momondo

Why use momondo?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo

Oakland, California flight routes

According to popular flight searches on momondo this year

Illinois flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Illinois

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Illinois

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According to popular flight searches on momondo this year