How long is the flight from Illinois to California?

Flight times from Illinois to California vary, but if you’re flying out of Chicago and flying into Los Angeles (one of the most popular routes), then the duration is 4h 15m on average. Another popular route from Illinois to California is flying from Moline to Los Angeles, which will take roughly 6h 17m. Keep in mind that layovers or delays could extend your travel time.

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

As of September 2025, 304 flights take off from Illinois and land in California each day. The most common flight departure time for this route is 6:00PM, with 36% of daily flights taking off at noon.

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

Frontier, Spirit Airlines, and Alaska Airlines are the most popular carriers operating from Illinois to California

What airlines fly to California?

American Airlines, United Airlines and Spirit Airlines are the top three most popular airlines that fly to California from Illinois according to our data. American Airlines is the first choice among our users, with 46% of people opting to fly with this airline when traveling to California. Keep in mind that there are 9 different airlines that fly to California on a routine basis, so you have a few additional options to choose from.

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

As of September 2025, there are 2,130 flights per week flying from Illinois to California. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

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

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

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

There are 10 operators available for flights from Illinois to California as of September 2025.

How old do you have to be to fly from Illinois to California?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to California.

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

The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$43 Cheap Flights from Illinois to California in 2025/26

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Find the cheapest flights from Illinois to California

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:00 am - 9:29 amORD-LAX

4h 29mnonstop

6:45 am - 11:53 pmLAX-ORD

15h 08m1 stop

$130Frontier

Find Deal

Sat, Oct 4 - Tue, Oct 7

10:42 am - 5:18 pmORD-LAX

8h 36m1 stop

9:22 am - 8:48 pmLAX-ORD

9h 26m1 stop

$132

Find Deal

Thu, Oct 2 - Wed, Oct 8

9:00 am - 1:33 pmORD-LAX

6h 33m1 stop

12:05 pm - 6:14 pmLAX-ORD

4h 09mnonstop

$133Spirit Airlines

Find Deal

Mon, Sep 29 - Sat, Oct 4

8:30 pm - 10:35 pmORD-LAS

4h 05mnonstop

12:50 am - 6:25 amLAS-ORD

3h 35mnonstop

$136Spirit Airlines

Find Deal

Tue, Dec 9 - Thu, Dec 11

11:50 am - 2:10 pmORD-SAN

4h 20mnonstop

6:16 am - 12:40 pmSAN-ORD

4h 24mnonstop

$155American Airlines

Find Deal

Sat, Oct 18 - Sat, Oct 25

9:15 am - 11:28 amORD-LAS

4h 13mnonstop

11:59 pm - 5:33 amLAS-ORD

3h 34mnonstop

$159United Airlines

Find Deal

Sun, Nov 9 - Tue, Nov 11

9:00 am - 10:55 amMDW-LAS

3h 55mnonstop

10:55 pm - 4:25 amLAS-MDW

3h 30mnonstop

$159Southwest

Find Deal

Mon, Oct 27 - Sat, Nov 1

1:35 pm - 7:00 pmSTL-LAS

7h 25m1 stop

5:20 am - 12:39 pmLAS-STL

5h 19m1 stop

$167United Airlines

Find Deal

Tue, Dec 9 - Sat, Dec 13

8:58 pm - 11:06 pmORD-LAS

4h 08mnonstop

11:59 pm - 5:30 amLAS-ORD

3h 31mnonstop

$169American Airlines

Find Deal

Sat, Oct 11 - Tue, Oct 14

5:20 pm - 7:15 pmMDW-LAS

3h 55mnonstop

11:45 pm - 5:15 amLAS-MDW

3h 30mnonstop

$169Southwest

Find Deal

Tue, Oct 14 - Fri, Oct 17

Spirit Airlines flights from Illinois to California

Our best Spirit Airlines deals on Illinois to California flight tickets

Spirit Airlines

Sep 29

ORD9:00 amChicago O'Hare Intl

6h 33m

1 stop

LAX1:33 pmLos Angeles

Oct 4

LAX12:05 pmLos Angeles

4h 09m

ORD6:14 pmChicago O'Hare Intl

$133

Find similar

Spirit Airlines

Dec 9

ORD8:30 pmChicago O'Hare Intl

4h 05m

LAS10:35 pmLas Vegas Harry Reid Intl

Dec 11

LAS12:50 amLas Vegas Harry Reid Intl

3h 35m

ORD6:25 amChicago O'Hare Intl

$136

Find similar

Spirit Airlines

Oct 1

ORD9:00 amChicago O'Hare Intl

6h 33m

1 stop

LAX1:33 pmLos Angeles

Oct 8

LAX9:22 amLos Angeles

9h 26m

1 stop

ORD8:48 pmChicago O'Hare Intl

$144

Find similar

Southwest flights from Illinois to California

Our best Southwest deals on Illinois to California flight tickets

Southwest

Oct 27

MDW9:00 amChicago Midway

3h 55m

LAS10:55 amLas Vegas Harry Reid Intl

Nov 1

LAS10:55 pmLas Vegas Harry Reid Intl

3h 30m

MDW4:25 amChicago Midway

$159

Find similar

Southwest

Oct 14

MDW5:20 pmChicago Midway

3h 55m

LAS7:15 pmLas Vegas Harry Reid Intl

Oct 17

LAS11:45 pmLas Vegas Harry Reid Intl

3h 30m

MDW5:15 amChicago Midway

$169

Find similar

Southwest

Oct 25

MDW7:20 pmChicago Midway

3h 55m

LAS9:15 pmLas Vegas Harry Reid Intl

Oct 27

LAS11:45 pmLas Vegas Harry Reid Intl

3h 30m

MDW5:15 amChicago Midway

$183

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Sat 10/4

7:00 am-9:29 am

Nonstop4h 29m

Los Angeles

Tue 10/7

6:45 am-11:53 pm

1 stop15h 08m

$130

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Thu 10/2

10:42 am-5:18 pm

1 stop8h 36m

Los Angeles

Wed 10/8

9:22 am-8:48 pm

1 stop9h 26m

$132

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Mon 9/29

9:00 am-1:33 pm

1 stop6h 33m

Los Angeles

Sat 10/4

12:05 pm-6:14 pm

Nonstop4h 09m

$133

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 12/9

8:30 pm-10:35 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Thu 12/11

12:50 am-6:25 am

Nonstop3h 35m

$136

ChicagoSan Diego

ORD - SAN

ORDSAN

Chicago O'Hare Intl

Sat 10/18

11:50 am-2:10 pm

Nonstop4h 20m

San Diego

Sat 10/25

6:16 am-12:40 pm

Nonstop4h 24m

$155

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 11/9

9:15 am-11:28 am

Nonstop4h 13m

Las Vegas Harry Reid Intl

Tue 11/11

11:59 pm-5:33 am

Nonstop3h 34m

$159

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Mon 10/27

9:00 am-10:55 am

Nonstop3h 55m

Las Vegas Harry Reid Intl

Sat 11/1

10:55 pm-4:25 am

Nonstop3h 30m

$159

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Tue 12/9

1:35 pm-7:00 pm

1 stop7h 25m

Las Vegas Harry Reid Intl

Sat 12/13

5:20 am-12:39 pm

1 stop5h 19m

$167

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 10/11

8:58 pm-11:06 pm

Nonstop4h 08m

Las Vegas Harry Reid Intl

Tue 10/14

11:59 pm-5:30 am

Nonstop3h 31m

$169

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Tue 10/14

5:20 pm-7:15 pm

Nonstop3h 55m

Las Vegas Harry Reid Intl

Fri 10/17

11:45 pm-5:15 am

Nonstop3h 30m

$169

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How to get the cheapest flight ticket from Illinois to California

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 California?

The month of August is another great option to travel to California, with average flight prices from Illinois averaging around $244.

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

The cheapest day to depart from Illinois to California is on a Friday. Travelers who choose to depart for California on a Friday will often find tickets for as low as $342. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to California on Monday is $537.

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

The cheapest time of day to fly to California is in the morning when flights can be purchased for as low as $327. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $838 on average. Flights to California from Illinois in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to California flight route?

Fly from Chicago O'Hare Intl to Los Angeles for the best Illinois - California flight prices

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

You are more likely to see cheaper flights to California from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to California for around $270 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to California from Illinois for as low as $226 on momondo.

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

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

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

Cheap Illinois to California flight deals and tips

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

Best Price Found	$98
Fastest flight time	3h 25m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in California	1 airport

The best one-way flight to California from Illinois in the past 72 hours is $98. The best round-trip flight deal from Illinois to California found on momondo in the last 72 hours is $168.

The fastest flight from Illinois to California takes 3h 25m

Direct flights go from Illinois to California on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and Southwest.

There is 1 airport near California: Las Vegas Harry Reid Intl (LAS)

Search flight deals

When did momondo last update prices for flights from Illinois to California?
Prices for flights from Illinois to California were last updated today.
How many operators does momondo search for flights from Illinois to California?
There are 10 operators available for flights from Illinois to California as of September 2025.
How old do you have to be to fly from Illinois to California?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to California.
What documentation or ID do you need to fly to California?
The travel and health documents you'll need for your trip to California may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at California. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Illinois to California?
Based on momondo bookings for flights between Illinois and California, the leading plane model is Boeing 737-800, making up 20.72% of the total bookings. Other popular models include Airbus A321neo with 15.18%, Airbus A321-100/200 with 10.43%, and Boeing 757-300 with 8.63%.

Best airlines flying from Illinois to California

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $78	Free Cancellation	Rating 5.8 3,172 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $83	Free Cancellation	Rating 6.3 8,015 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $108	Free Cancellation	Rating 7.8 2,723 reviews	Search Hawaiian Airlines flights
Sun Country Air	PriceFrom $112	Free Cancellation	Rating 6.9 330 reviews	Search Sun Country Air flights
Delta	PriceFrom $128	Free Cancellation	Rating 7.9 7,954 reviews	Search Delta flights
Alaska Airlines	PriceFrom $139	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $152	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
American Airlines	PriceFrom $162	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $189	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights

Why use momondo?

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

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

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

Yes. All flights to California from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Illinois to California flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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

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Popular cities in California

Flights to New Yorkfrom $49

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Flights to Washington, D.C.from $54

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Cheap flights from Illinois to California from $43

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to California departing on 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Illinois to California

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Spirit Airlines flights from Illinois to California

Our best Spirit Airlines deals on Illinois to California flight tickets

Southwest flights from Illinois to California

Our best Southwest deals on Illinois to California flight tickets

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

See travel insights to California from

How to get the cheapest flight ticket from Illinois to California

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 California?

The month of August is another great option to travel to California, with average flight prices from Illinois averaging around $244.

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

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

What is the cheapest Illinois to California flight route?

Fly from Chicago O'Hare Intl to Los Angeles for the best Illinois - California flight prices

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

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

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

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

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

Frontier, Spirit Airlines, and Alaska Airlines are the most popular carriers operating from Illinois to California

What airlines fly to California?

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

As of September 2025, 304 flights take off from Illinois and land in California each day. The most common flight departure time for this route is 6:00PM, with 36% of daily flights taking off at noon.

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

As of September 2025, there are 2,130 flights per week flying from Illinois to California. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

How long is the flight from Illinois to California?

Cheap Illinois to California flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in California

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

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

How old do you have to be to fly from Illinois to California?

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

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

Best airlines flying from Illinois to California

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

Why use momondo?

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

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

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

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

An easier way to manage your California 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 California

Popular cities in California

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