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Cheap flights from California to Illinois from $60

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from California to Illinois departing on 5/6. 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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0 bags

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Find the cheapest flights from California to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:15 am - 11:01 pm
LAS
-
ORD
13h 46m
1 stop
Multiple Airlines Logo
4:05 pm - 7:41 am
ORD
-
LAS
17h 36m
1 stop
$147Multiple Airlines
Tue, May 5 - Tue, May 12
Frontier Logo
12:20 am - 6:08 am
LAS
-
ORD
3h 48mnonstop
Frontier Logo
9:37 pm - 2:03 pm
ORD
-
LAS
18h 26m
2 stops
$148Frontier
Tue, Apr 28 - Tue, May 5
Spirit Airlines Logo
11:35 pm - 5:35 am
LAX
-
ORD
4h 00mnonstop
Spirit Airlines Logo
2:00 pm - 4:27 pm
ORD
-
LAX
4h 27mnonstop
$170Spirit Airlines
Thu, Apr 30 - Sun, May 3
Southwest Logo
5:15 am - 11:15 am
LAX
-
MDW
4h 00mnonstop
Southwest Logo
8:55 pm - 11:20 pm
MDW
-
LAX
4h 25mnonstop
$199Southwest
Wed, May 27 - Wed, Jun 3
American Airlines Logo
11:59 pm - 8:50 am
ONT
-
ORD
6h 51m
1 stop
American Airlines Logo
5:00 am - 8:48 am
ORD
-
ONT
5h 48m
1 stop
$261American Airlines
Thu, May 7 - Mon, May 11
United Airlines Logo
4:55 pm - 11:29 pm
SFO
-
ORD
4h 34mnonstop
United Airlines Logo
7:40 am - 10:33 am
ORD
-
SFO
4h 53mnonstop
$265United Airlines
Sat, May 2 - Mon, May 4
Southwest Logo
11:25 pm - 5:40 am
SFO
-
MDW
4h 15mnonstop
Southwest Logo
6:10 pm - 8:45 pm
MDW
-
SFO
4h 35mnonstop
$265Southwest
Sat, May 23 - Sat, May 30
American Airlines Logo
4:18 pm - 12:32 am
SJC
-
ORD
6h 14m
1 stop
American Airlines Logo
5:00 am - 10:10 am
ORD
-
SJC
7h 10m
1 stop
$272American Airlines
Mon, May 4 - Tue, May 12
United Airlines Logo
12:56 pm - 12:45 am
SJC
-
ORD
9h 49m
1 stop
United Airlines Logo
8:02 pm - 10:58 pm
ORD
-
SJC
4h 56mnonstop
$275United Airlines
Thu, Apr 30 - Mon, May 4
Spirit Airlines Logo
6:45 am - 5:25 am
SNA
-
ORD
20h 40m
1 stop
Spirit Airlines Logo
10:07 pm - 2:28 pm
ORD
-
SNA
18h 21m
1 stop
$322Spirit Airlines
Fri, Apr 24 - Mon, Apr 27

American Airlines flights from California to Illinois

Our best American Airlines deals on California to Illinois flight tickets
American Airlines
Jun 10
LAX5:50 pmLos Angeles
4h 09m
ORD11:59 pmChicago O'Hare Intl
Jun 16
ORD6:51 amChicago O'Hare Intl
4h 29m
LAX9:20 amLos Angeles
$199
American Airlines
May 9
SAN3:09 pmSan Diego
4h 23m
ORD9:32 pmChicago O'Hare Intl
May 16
ORD9:00 pmChicago O'Hare Intl
4h 33m
SAN11:33 pmSan Diego
$238
American Airlines
May 2
SAN10:40 pmSan Diego
4h 05m
ORD4:45 amChicago O'Hare Intl
May 9
ORD9:00 pmChicago O'Hare Intl
4h 33m
SAN11:33 pmSan Diego
$240

Alaska Airlines flights from California to Illinois

Our best Alaska Airlines deals on California to Illinois flight tickets
Alaska Airlines
May 5
SAN12:53 pmSan Diego
4h 10m
ORD7:03 pmChicago O'Hare Intl
May 6
ORD8:50 amChicago O'Hare Intl
4h 40m
SAN11:30 amSan Diego
$237
Alaska Airlines
May 5
SAN7:03 amSan Diego
4h 10m
ORD1:13 pmChicago O'Hare Intl
May 5
ORD3:52 pmChicago O'Hare Intl
4h 39m
SAN6:31 pmSan Diego
$242
Alaska Airlines
Apr 22
SNA6:45 amSanta Ana J. Wayne/Orange Cnty
8h 11m
1 stop
ORD4:56 pmChicago O'Hare Intl
Apr 28
ORD8:00 amChicago O'Hare Intl
10h 51m
1 stop
SNA4:51 pmSanta Ana J. Wayne/Orange Cnty
$382

momondo Fare Finder

 
Customize your flight search to find flights from California to Illinois 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, momondo users made 832,500 searches. Data last updated April 13, 2026.
Use the filters below to find and compare flights from California to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Tue 5/5

7:15 am-11:01 pm

1 stop13h 46m

Chicago O'Hare Intl

Tue 5/12

4:05 pm-7:41 am

1 stop17h 36m

$147

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Tue 4/28

12:20 am-6:08 am

Nonstop3h 48m

Chicago O'Hare Intl

Tue 5/5

9:37 pm-2:03 pm

2 stops18h 26m

$148

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Thu 4/30

11:35 pm-5:35 am

Nonstop4h 00m

Chicago O'Hare Intl

Sun 5/3

2:00 pm-4:27 pm

Nonstop4h 27m

$170
Quickest round-trip

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Wed 5/27

5:15 am-11:15 am

Nonstop4h 00m

Chicago Midway

Wed 6/3

8:55 pm-11:20 pm

Nonstop4h 25m

$199

OntarioChicago

ONT - ORD

ONTORD

Ontario

Thu 5/7

11:59 pm-8:50 am

1 stop6h 51m

Chicago O'Hare Intl

Mon 5/11

5:00 am-8:48 am

1 stop5h 48m

$261

San FranciscoChicago

SFO - ORD

SFOORD

San Francisco

Sat 5/2

4:55 pm-11:29 pm

Nonstop4h 34m

Chicago O'Hare Intl

Mon 5/4

7:40 am-10:33 am

Nonstop4h 53m

$265

San FranciscoChicago

SFO - MDW

SFOMDW

San Francisco

Sat 5/23

11:25 pm-5:40 am

Nonstop4h 15m

Chicago Midway

Sat 5/30

6:10 pm-8:45 pm

Nonstop4h 35m

$265

San JoseChicago

SJC - ORD

SJCORD

San Jose

Mon 5/4

4:18 pm-12:32 am

1 stop6h 14m

Chicago O'Hare Intl

Tue 5/12

5:00 am-10:10 am

1 stop7h 10m

$272

San JoseChicago

SJC - ORD

SJCORD

San Jose

Thu 4/30

12:56 pm-12:45 am

1 stop9h 49m

Chicago O'Hare Intl

Mon 5/4

8:02 pm-10:58 pm

Nonstop4h 56m

$275

Santa AnaChicago

SNA - ORD

SNAORD

Santa Ana J. Wayne/Orange Cnty

Fri 4/24

6:45 am-5:25 am

1 stop20h 40m

Chicago O'Hare Intl

Mon 4/27

10:07 pm-2:28 pm

1 stop18h 21m

$322

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from 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

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from California is in September. Flight prices, which tend to average around $242, 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 September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $260.

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

The cheapest day to depart from California to Illinois is on a Thursday when prices can be found for as low as $364. Flights from California to Illinois on a Sunday will generally be more expensive and average around $439. 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 California to Illinois during this time can be as low as $288. Flights at noon are often more expensive with an average ticket price of $471.

What is the cheapest California to Illinois flight route?

Fly from Los Angeles Los Angeles to Chicago Greater Rockford for the best California - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from California when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $321 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from California for as low as $268 on momondo.

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

There are 4 cabin classes available to choose from on 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 California to Illinois flights?

No. A direct flight is the cheapest option for a flight between California to Illinois.

Cheap California to Illinois flight deals and tips

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

Best Price Found

$187

Fastest flight time

3h 08m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from California in the past 72 hours is $187. The best round-trip flight deal from California to Illinois found on momondo in the last 72 hours is $323.
The fastest flight from California to Illinois takes 3h 08m
Direct flights go from California to Illinois every day.
There are 98 airports in Illinois. From California there are direct flights to Chicago O'Hare Intl (ORD).
Search flight deals

Frequently asked questions about flying from California to Illinois

  • When did momondo last update prices for flights from California to Illinois?

    Prices for flights from California to Illinois were last updated today.

  • How many operators does momondo search for flights from California to Illinois?

  • How old do you have to be to fly from California 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 California to Illinois.

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

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from California to Illinois?

Best airlines flying from California to Illinois

Compare and see reviews for airlines that fly from California to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $90Free CancellationRating
5.7
2,993 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $92Free CancellationRating
6.3
8,612 reviews
Search Spirit Airlines flights
DeltaPriceFrom $93Free CancellationRating
7.9
8,406 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $101Free CancellationRating
7.8
2,838 reviews
Search Hawaiian Airlines flights
United AirlinesPriceFrom $133Free CancellationRating
7.4
9,579 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $145Free CancellationRating
7.9
12,226 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $157Free CancellationRating
7.1
11,569 reviews
Search American Airlines flights
JetBluePriceFrom $166Free CancellationRating
7.2
2,929 reviews
Search JetBlue flights
SouthwestPriceFrom $179Free CancellationRating
8.0
4,331 reviews
Search Southwest flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from California to Illinois. momondo saves you time and could save you money on your trip.

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

Flights from California 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 California 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 California to Illinois.

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

If you are not ready to book a flight from California to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.

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