How does KAYAK find such low prices on flights from California to Chicago?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Chicago.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Chicago?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from California is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from California to Chicago?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to California with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Chicago?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$102 CHEAP FLIGHTS from California to Chicago

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Cheap Flights from California to Chicago

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from California to Chicago

Wed, Oct 28 - Sat, Oct 31

11:52 am - 12:21 amONT Ontario-ORD Chicago O'Hare Intl

10h 29m1 stop Denver Intl

6:30 am - 10:42 amORD Chicago O'Hare Intl-ONT Ontario

6h 12m1 stop Denver Intl

$198Frontier

Tue, Oct 27 - Thu, Oct 29

6:25 am - 12:21 amONT Ontario-ORD Chicago O'Hare Intl

15h 56m1 stop Denver Intl

6:30 am - 10:35 amORD Chicago O'Hare Intl-ONT Ontario

6h 05m1 stop Denver Intl

$198Frontier

Thu, Oct 29 - Tue, Nov 3

9:59 am - 11:57 pmLAX Los Angeles-ORD Chicago O'Hare Intl

11h 58m1 stop Fort Lauderdale

7:00 am - 2:50 pmORD Chicago O'Hare Intl-LAX Los Angeles

9h 50m1 stop Fort Lauderdale

$198JetBlue

Tue, Oct 27 - Sat, Oct 31

9:59 am - 11:57 pmLAX Los Angeles-ORD Chicago O'Hare Intl

11h 58m1 stop Fort Lauderdale

2:42 pm - 11:56 pmORD Chicago O'Hare Intl-LAX Los Angeles

11h 14m1 stop Fort Lauderdale

$198JetBlue

Thu, Oct 22 - Fri, Oct 30

12:21 am - 6:34 amLAX Los Angeles-ORD Chicago O'Hare Intl

4h 13mnonstop

3:49 pm - 11:58 pmORD Chicago O'Hare Intl-LAX Los Angeles

10h 09m1 stop Seattle/Tacoma Intl

$198Multiple Airlines

Thu, Oct 22 - Mon, Oct 26

12:21 am - 6:34 amLAX Los Angeles-ORD Chicago O'Hare Intl

4h 13mnonstop

6:00 am - 1:05 pmORD Chicago O'Hare Intl-LAX Los Angeles

9h 05m1 stop Seattle/Tacoma Intl

$198Multiple Airlines

Tue, Nov 10 - Fri, Nov 13

11:55 pm - 5:55 amLAX Los Angeles-MDW Chicago Midway

4h 00mnonstop

12:20 pm - 4:25 pmMDW Chicago Midway-LAX Los Angeles

6h 05m1 stop Tucson

$203Southwest

Fri, Oct 30 - Mon, Nov 2

1:05 pm - 9:25 pmLAX Los Angeles-MDW Chicago Midway

6h 20m1 stop Nashville Intl

9:30 pm - 11:55 pmMDW Chicago Midway-LAX Los Angeles

4h 25mnonstop

$207Southwest

Fri, Oct 30 - Fri, Nov 6

11:45 am - 5:50 pmLAX Los Angeles-ORD Chicago O'Hare Intl

4h 05mnonstop

5:30 pm - 12:21 amORD Chicago O'Hare Intl-LAX Los Angeles

8h 51m1 stop Seattle/Tacoma Intl

$207Delta

Fri, Oct 30 - Sat, Oct 31

5:52 pm - 11:47 pmLAX Los Angeles-ORD Chicago O'Hare Intl

3h 55mnonstop

6:20 am - 12:55 pmORD Chicago O'Hare Intl-LAX Los Angeles

8h 35m1 stop Minneapolis St Paul

$207Delta

Recent last minute flight deals from California to Chicago

Sat, Oct 3 - Wed, Oct 21

11:45 am - 12:23 amONT Ontario-ORD Chicago O'Hare Intl

10h 38m1 stop Denver Intl

6:30 am - 10:29 amORD Chicago O'Hare Intl-ONT Ontario

5h 59m1 stop Denver Intl

$229Frontier

Sat, Oct 3 - Tue, Oct 20

11:45 am - 12:23 amONT Ontario-ORD Chicago O'Hare Intl

10h 38m1 stop Denver Intl

6:30 am - 10:29 amORD Chicago O'Hare Intl-ONT Ontario

5h 59m1 stop Denver Intl

$229Frontier

Wed, Sep 30 - Fri, Oct 23

10:04 am - 5:38 amONT Ontario-ORD Chicago O'Hare Intl

17h 34m1 stop Las Vegas Harry Reid Intl

3:49 pm - 11:42 pmORD Chicago O'Hare Intl-ONT Ontario

9h 53m1 stop Seattle/Tacoma Intl

$282Multiple Airlines

Wed, Sep 30 - Fri, Oct 23

2:01 pm - 12:23 amLAX Los Angeles-ORD Chicago O'Hare Intl

8h 22m1 stop Denver Intl

3:49 pm - 11:58 pmORD Chicago O'Hare Intl-LAX Los Angeles

10h 09m1 stop Seattle/Tacoma Intl

$303Multiple Airlines

Thu, Oct 1 - Tue, Oct 20

6:00 am - 6:01 pmONT Ontario-ORD Chicago O'Hare Intl

10h 01m1 stop Seattle/Tacoma Intl

6:20 am - 5:12 pmORD Chicago O'Hare Intl-ONT Ontario

12h 52m2 stops Minneapolis St Paul Seattle/Tacoma Intl

$313Delta

Wed, Sep 30 - Tue, Oct 20

11:54 am - 11:57 pmONT Ontario-ORD Chicago O'Hare Intl

10h 03m1 stop Seattle/Tacoma Intl

6:20 am - 5:12 pmORD Chicago O'Hare Intl-ONT Ontario

12h 52m2 stops Minneapolis St Paul Seattle/Tacoma Intl

$313Delta

Fri, Oct 2 - Mon, Oct 5

1:04 pm - 10:31 pmONT Ontario-ORD Chicago O'Hare Intl

7h 27m1 stop Phoenix Sky Harbor Intl

5:00 am - 9:35 amORD Chicago O'Hare Intl-ONT Ontario

6h 35m1 stop Dallas/Fort Worth

$315American Airlines

Sat, Oct 3 - Sat, Oct 17

12:35 pm - 6:53 pmSAN San Diego-ORD Chicago O'Hare Intl

4h 18mnonstop

7:20 am - 9:56 amORD Chicago O'Hare Intl-SAN San Diego

4h 36mnonstop

$316Alaska Airlines

Sat, Oct 3 - Tue, Oct 20

12:35 pm - 6:53 pmSAN San Diego-ORD Chicago O'Hare Intl

4h 18mnonstop

2:21 pm - 5:01 pmORD Chicago O'Hare Intl-SAN San Diego

4h 40mnonstop

$316Alaska Airlines

Sat, Oct 3 - Wed, Oct 7

10:25 am - 8:30 pmONT Ontario-ORD Chicago O'Hare Intl

8h 05m1 stop Dallas/Fort Worth

5:00 am - 12:14 pmORD Chicago O'Hare Intl-ONT Ontario

9h 14m1 stop Phoenix Sky Harbor Intl

$317American Airlines

Useful Info

Low season	January
High season	June
Cheapest flight	$102

Best time to beat the crowds but there is an average 2% increase in price.

Most popular time to fly with an average 11% increase in price.

Flight from Los Angeles to Chicago O'Hare Airport

CupcakeFlew with Alaska Airlines-Apr 2026

Please bring a water bottle for hydration during the flight.

StephenFlew with United Airlines-Jan 2026

If you're trying to make a connecting flight make sure you allow PLENTY of time between flights or be prepared to miss the next flight. Make sure to use the restroom at the last possible moment before landing because you could be sitting on the taxiway for 5 more minutes... 5 more minutes... 5 more minutes... until it's been nearly 2 hours. Don't trust the airline provided ETA provided by apps they don't update it until long after you're delayed. If someone is showing up to give you a ride, make sure they have hours to wait for you.

RodFlew with United Airlines-Sep 2024

Yes! Don’t reserve a flight with less than 1 1/2 hour connection time or you have a good possibility of missing your connection.

FrancisFlew with United Airlines-Sep 2024

Check the weather, or bring a. Raincoat! Being from sunny California, I forget it isn’t always sunshine in other states!

GeraldFlew with Alaska Airlines-Oct 2024

Book a flight as early in the day as possible to avoid incoming flight delays.

KimFlew with American Airlines-Nov 2024

Bring extra foods and buy extra drinks bring your meds

ShirleyFlew with United Airlines-May 2024

Check-in using the United AirLines app to access your boarding pass. Arrive at least two hours early at LAX airport.

How does KAYAK find such low prices on flights from California to Chicago?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from California to Chicago.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Chicago?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from California is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from California to Chicago?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to California with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from California to Chicago?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Merrillville

Hammond

Saint Joseph

Portage

Lansing

Valparaiso

Schererville

Munster

Chesterton

Porter

Monticello

Saint John

Griffith

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$102 Find Cheap Flights from California to Chicago - Compare and Save

Cheap Flights from California to Chicago

Recent round-trip flight deals from California to Chicago

Recent one-way flight deals from California to Chicago

Recent last minute flight deals from California to Chicago

Recent direct flight deals from California to Chicago

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High season

Cheapest flight

Flights from California to Chicago: the best tips from KAYAK users

FAQs for booking flights from California to Chicago

Traveling to a place near Chicago?

More options for your flight to Chicago

Complete your trip to Chicago with a hotel stay or car rental

Cabin class types available on flights to California

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Flights from domestic origins to Chicago

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