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$81+ Cheap flights from Illinois to Los Angeles (LAX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Illinois to Los Angeles

Keep the following information in mind while searching for Illinois to Los Angeles flight deals. Data was last updated July 31, 2025.

Round-trip from

$140
(Mytrip)

One-way from

$81
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$274

Good round-trip deal

$198 or less

Good one-way deal

$106 or less
From Illinois to Los Angeles
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One-way flight from Illinois to Los Angeles
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Highest demand for flights based on searches. 9% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Los Angeles.
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Price to beat on a one-way flight from Illinois to Los Angeles.
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Find flight deals from Illinois to Los Angeles

Cheapest flights from Illinois to Los Angeles
Explore the most affordable flight options available from Illinois to Los Angeles. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:09 pmORD - LAX
Nonstop4h 27mSpirit Airlines
Sat 8/167:58 pmLAX - ORD
1 stop13h 45mSpirit Airlines
Deal found 7/30$140
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/236:20 amORD - LAX
Nonstop4h 29mMultiple Airlines
Tue 8/2611:39 pmLAX - ORD
Nonstop4h 01mMultiple Airlines
Deal found 7/29$141
This FlightHub deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:20 amORD - LAX
Nonstop4h 29mFrontier
Sun 8/244:49 pmLAX - ORD
Nonstop4h 22mFrontier
Deal found 7/30$150
This CheapOair deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:05 pmSTL - LAX
1 stop13h 10mMultiple Airlines
Sun 9/2110:45 pmLAX - STL
1 stop14h 19mMultiple Airlines
Deal found 7/28$196
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/308:50 pmMDW - LAX
Nonstop4h 20mSouthwest
Sat 9/611:15 pmLAX - MDW
Nonstop3h 55mSouthwest
Deal found 7/31$197
This FlightHub deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:05 pmSTL - LAX
1 stop24h 52mSpirit Airlines
Sat 9/205:30 amLAX - STL
1 stop27h 20mSpirit Airlines
Deal found 7/30$209
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/209:20 amMDW - LAX
1 stop7h 40mDelta
Sat 9/2710:45 pmLAX - MDW
1 stop7h 55mDelta
Deal found 7/31$217
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:55 pmSTL - LAX
1 stop6h 32mFrontier
Sat 10/116:55 pmLAX - STL
1 stop12h 12mFrontier
Deal found 7/29$218
This Gotogate deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/162:44 pmMDW - LAX
1 stop21h 13mFrontier
Sat 8/239:31 pmLAX - MDW
1 stop10h 37mFrontier
Deal found 7/29$236
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1911:24 amPIA - LAX
1 stop7h 06mAmerican Airlines
Tue 9/239:36 amLAX - PIA
1 stop6h 09mAmerican Airlines
Deal found 7/31$289
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/53:37 pmMLI - LAX
1 stop6h 47mAmerican Airlines
Wed 11/127:35 amLAX - MLI
1 stop8h 50mAmerican Airlines
Deal found 7/31$289
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/313:30 pmSTL - LAX
Nonstop3h 55mSouthwest
Tue 9/98:40 amLAX - STL
Nonstop3h 35mSouthwest
Deal found 7/30$295

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Los Angeles 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, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
Use the filters below to find and compare flights from Illinois to Los Angeles that are best for you.

Fly from

Illinois

Fly to

Los Angeles

Route

Depart

Return

Price

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Wed 8/13

7:09 pm-9:36 pm

Nonstop4h 27m

Los Angeles

Sat 8/16

7:58 pm-11:43 am

1 stop13h 45m

$140

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Sat 8/23

6:20 am-8:49 am

Nonstop4h 29m

Los Angeles

Tue 8/26

11:39 pm-5:40 am

Nonstop4h 01m

$141

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Fri 8/22

6:20 am-8:49 am

Nonstop4h 29m

Los Angeles

Sun 8/24

4:49 pm-11:11 pm

Nonstop4h 22m

$150

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Thu 9/18

12:05 pm-11:15 pm

1 stop13h 10m

Los Angeles

Sun 9/21

10:45 pm-3:04 pm

1 stop14h 19m

$196

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 8/30

8:50 pm-11:10 pm

Nonstop4h 20m

Los Angeles

Tue 9/2

11:15 pm-5:10 am

Nonstop3h 55m

$197

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Thu 9/4

12:05 pm-10:57 am

1 stop24h 52m

Los Angeles

Sat 9/20

5:30 am-10:50 am

1 stop27h 20m

$209

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 9/20

9:35 am-2:02 pm

1 stop6h 27m

Los Angeles

Wed 9/24

6:15 am-5:35 pm

1 stop9h 20m

$217

St. LouisLos Angeles

STL - LAX

STLLAX

Lambert-St Louis

Tue 9/30

7:55 pm-12:27 am

1 stop6h 32m

Los Angeles

Sat 10/11

7:00 pm-8:52 am

1 stop11h 52m

$218

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 8/16

2:44 pm-9:57 am

1 stop21h 13m

Los Angeles

Sat 8/23

9:31 pm-10:08 am

1 stop10h 37m

$236

PeoriaLos Angeles

PIA - LAX

PIALAX

Greater Peoria

Fri 9/19

11:24 am-4:30 pm

1 stop7h 06m

Los Angeles

Tue 9/23

9:36 am-5:45 pm

1 stop6h 09m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 55 results
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Best time to book a flight from Illinois to Los Angeles

Have a flexible travel schedule? Discover the best time to fly to Los Angeles from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Los Angeles

What is the cheapest month to book a flight from Illinois to Los Angeles?

Currently, January is the cheapest month in which you can book a flight from Illinois to Los Angeles (average of $246). Flying from Illinois to Los Angeles in March is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to LAX?

Find hourly flight availability from Illinois to Los Angeles. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Los Angeles as you normally would.

Weekly flight availability from Illinois to Los Angeles

Explore weekly flight availability from Illinois to Los Angeles. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 31, 2025.

The most flights from USIL to LAX are scheduled on a Thursday (125 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (64 on average).

How much does it cost to fly round-trip from Illinois to Los Angeles?

Reviews of airlines servicing Los Angeles

Get insights into the airlines that provide service to Los Angeles. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Los Angeles. Reviews last updated July 31, 2025.
Read through reviews of airlines operating flights from Illinois to Los Angeles, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Breeze Airways
8.0
Very good
191 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Los Angeles. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Los Angeles from Illinois?

    If you book a flight to Los Angeles from Illinois, you will be flying to Los Angeles, which is the city’s only airport. Los Angeles (LAX) is located 9.4 mi from the center of Los Angeles.

  • What are the cheapest airlines to fly from Illinois to Los Angeles one-way?

    The cheapest airlines for a one-way flight from Illinois to Los Angeles are Spirit Airlines ($81), Frontier ($83), and Southwest ($99).

  • What are the most popular routes from Illinois to Los Angeles?

    Most travelers choose Chicago O'Hare Intl - Los Angeles, Chicago Midway - Los Angeles or Lambert-St Louis - Los Angeles when deciding on the best route from Illinois to Los Angeles.

  • What are the most reliable airlines from Illinois to Los Angeles?

    Before booking your flight to Los Angeles from Illinois, check out the most reliable airlines to get you to your destination on time: Asiana Airlines (93%), Austrian Airlines (90%), Brussels Airlines( 90%).

  • What are the cheapest flights from Illinois to Los Angeles?

    The cheapest flight price from Illinois to Los Angeles is $80. On average you can expect to pay $1,554. The most popular route, (Chicago O'Hare Intl - Los Angeles), can usually be booked for $109.

  • Can I find deals for flights from Illinois to Los Angeles that include hotel bookings?

    Yes. In addition to deals on Illinois to Los Angeles flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Los Angeles?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Los Angeles.

  • Can I find deals for business class flights from Illinois to Los Angeles?

    Yes. Cheapflights offers flight deals from Illinois to Los Angeles by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Los Angeles?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Los Angeles (average of $246). Flying from Illinois to Los Angeles in March is currently the most expensive (average of $326). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Los Angeles?

Book flights to Los Angeles if you plan to visit one of these locations
Stanton
Inglewood
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West Hollywood
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Fontana

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Alternative routes for Illinois to Los Angeles

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Illinois to Los Angeles

Discover the top 9 airlines that operate flights from Illinois to Los Angeles. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$79Average$233FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$81Average$144FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$93Average$214FlexibilityNo cancel feeOn-time65%
Sun Country AirCheapest$147Average$365FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$167Average$384FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$179Average$474FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$189Average$481FlexibilityNo cancel feeOn-time69%
DeltaCheapest$192Average$330FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$210Average$424FlexibilityNo cancel feeOn-time63%

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