How does KAYAK find such low prices on flights from California to Chicago O'Hare Airport?

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 O'Hare Airport. Visit our flight page for the latest deals!>/a>

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from California is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from California to Chicago O'Hare Airport?

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 O'Hare Airport with an airline and back to California with another airline. Visit our flight page for the latest deals!>/a>

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

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 O'Hare Airport from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$83 CHEAP FLIGHTS from California to Chicago O'Hare (ORD)

ORD

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

...and more

Travelers love KAYAK

41 299 237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals

Cheap Flights from California to O'Hare Intl

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 O'Hare Intl

Sat, Apr 25 - Sat, May 2

11:51 pm - 5:25 am

LAS

ORD

3h 34mnonstop

10:07 pm - 11:59 pm

ORD

LAS

3h 52mnonstop

$134Spirit Airlines

Thu, Apr 23 - Sun, Apr 26

6:30 am - 5:00 pm

LAS

ORD

8h 30m

1 stop

8:58 pm - 11:25 pm

ORD

LAS

4h 27mnonstop

$135Frontier

Wed, Apr 15 - Sun, Apr 19

12:20 am - 6:08 am

LAS

ORD

3h 48mnonstop

5:15 am - 9:45 am

ORD

LAS

6h 30m

1 stop

$136Multiple Airlines

Mon, Apr 13 - Sat, Apr 18

12:32 am - 6:20 am

LAS

ORD

3h 48mnonstop

3:00 pm - 7:29 pm

ORD

LAS

6h 29m

1 stop

$140Multiple Airlines

Sat, Apr 25 - Sat, May 2

11:30 am - 11:25 pm

SAN

ORD

9h 55m

2 stops

3:05 pm - 11:25 pm

ORD

SAN

10h 20m

2 stops

$177Southwest

Tue, May 5 - Sat, May 9

1:00 pm - 11:59 pm

SAN

ORD

8h 59m

1 stop

3:52 pm - 6:31 pm

ORD

SAN

4h 39mnonstop

$182Alaska Airlines

Tue, Apr 28 - Wed, Apr 29

6:46 am - 7:03 pm

OAK

ORD

10h 17m

1 stop

3:52 pm - 10:23 pm

ORD

OAK

8h 31m

1 stop

$217Alaska Airlines

Tue, May 19 - Thu, Jun 4

5:50 am - 4:29 pm

SFO

ORD

8h 39m

1 stop

2:11 pm - 9:30 pm

ORD

SFO

9h 19m

1 stop

$252Delta

Wed, May 6 - Tue, May 12

1:50 pm - 10:55 pm

OAK

ORD

7h 05m

1 stop

4:50 pm - 10:35 pm

ORD

OAK

7h 45m

1 stop

$257Southwest

Mon, Mar 30 - Thu, Apr 2

7:39 pm - 8:40 am

SMF

ORD

11h 01m

2 stops

7:10 pm - 11:42 pm

ORD

SMF

6h 32m

1 stop

$286Delta

Useful Info

Low season	January
High season	July
Cheapest flight	$83

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

Most popular time to fly with an average 1% increase in price.

Flight from Ontario to Chicago O'Hare Airport

StephenFlew with United Airlines

SMF

ORD

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

SAN

ORD

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

LAX

ORD

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

SFO

ORD

Oct 2024

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

KimFlew with American Airlines

SNA

ORD

Nov 2024

Bring extra foods and buy extra drinks bring your meds

ShirleyFlew with United Airlines

LAX

ORD

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 O'Hare Airport?
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 O'Hare Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from California to Chicago O'Hare Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport 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 O'Hare Airport?
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 O'Hare Airport 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 O'Hare Airport?
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 O'Hare Airport from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Gurnee

South Haven

Merrillville

Oak Brook

Saint Joseph

Tinley Park

Elk Grove Village

Des Plaines

Hammond

Hoffman Estates

Willowbrook

Portage

South Holland

Delavan

Northbrook

Lansing

Pleasant Prairie

Lisle

Elmhurst

Valparaiso

Everything you need to know for your flight to O'Hare Intl

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

Information on your arrival and departure airports

Chicago O'Hare Airport (ORD)

ORD

$83 Find Cheap Flights from California to Chicago O'Hare Airport

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

Cheap Flights from California to O'Hare Intl

Recent round-trip flight deals from California to O'Hare Intl

Recent one-way flight deals from California to O'Hare Intl

Recent last minute flight deals from California to O'Hare Intl

Recent direct flight deals from California to O'Hare Intl

Good to know

Flights from California to O'Hare Intl: the best tips from KAYAK users

FAQs for booking California to Chicago O'Hare Airport flights

How does KAYAK find such low prices on flights from California to Chicago O'Hare Airport?

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 O'Hare Airport.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport 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 O'Hare Airport?

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 O'Hare Airport 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 O'Hare Airport?

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 O'Hare Airport from California up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near O'Hare Intl?

Everything you need to know for your flight to O'Hare Intl

Information on your arrival and departure airports

Cabin class types available on flights to O'Hare Intl

Complete your trip to O'Hare Intl with a hotel stay or car rental

Find direct flights for O'Hare Intl

Flights to other popular destinations

Flights from domestic origins to California

Choose which airport to fly into in Chicago

Find deals for your return flight