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$89+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
May 29 — Jun 51
Fri 5/29
Fri 6/5
1 adult, Economy
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Cheap 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 April 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Tue 5/199:37 pm
ORD
-
LAX
1 stop13h 18m
Multiple Airlines
Sat 5/2311:59 pm
LAX
-
ORD
Nonstop4h 00m
Multiple Airlines
Deal found 4/25$154
This Trip.com deal was found by Cheapflights users on 4/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/159:37 pm
ORD
-
LAX
1 stop28h 39m
Frontier
Sat 5/2312:26 am
LAX
-
ORD
Nonstop4h 08m
Frontier
Deal found 4/24$155
This Frontier deal was found by Cheapflights users on 4/27. 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.
Thu 5/288:46 pm
ORD
-
LAX
Nonstop4h 40m
Frontier
Fri 5/293:28 pm
LAX
-
ORD
1 stop14h 27m
Frontier
Deal found 4/27$157
This Expedia deal was found by Cheapflights users on 4/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:56 pm
ORD
-
LAX
Nonstop4h 40m
Frontier
Mon 5/1812:31 am
LAX
-
ORD
Nonstop4h 08m
Frontier
Deal found 4/27$158
This Frontier deal was found by Cheapflights users on 4/24. 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.
Wed 5/138:56 pm
ORD
-
LAX
Nonstop4h 40m
Frontier
Sat 5/2312:26 am
LAX
-
ORD
Nonstop4h 08m
Frontier
Deal found 4/24$159
This Frontier deal was found by Cheapflights users on 4/26. 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 5/199:37 pm
ORD
-
LAX
1 stop13h 18m
Frontier
Sat 5/233:28 pm
LAX
-
ORD
1 stop14h 27m
Frontier
Deal found 4/26$160
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/3011:57 am
ORD
-
LAX
1 stop12h 01m
Frontier
Mon 6/811:56 pm
LAX
-
ORD
Nonstop4h 08m
Frontier
Deal found 4/28$161
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/179:13 pm
ORD
-
LAX
Nonstop4h 36m
Frontier
Mon 6/2910:12 pm
LAX
-
ORD
1 stop29h 20m
Frontier
Deal found 4/28$163
This Frontier deal was found by Cheapflights users on 4/24. 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 5/129:37 pm
ORD
-
LAX
1 stop13h 18m
Frontier
Sat 5/2312:26 am
LAX
-
ORD
Nonstop4h 08m
Frontier
Deal found 4/24$164
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:46 pm
ORD
-
LAX
Nonstop4h 40m
Frontier
Mon 6/811:56 pm
LAX
-
ORD
Nonstop4h 08m
Frontier
Deal found 4/28$165
This Southwest deal was found by Cheapflights users on 4/27. 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.
Tue 6/95:35 am
MDW
-
LAX
Nonstop4h 15m
Southwest
Wed 6/175:00 pm
LAX
-
MDW
Nonstop3h 55m
Southwest
Deal found 4/27$199
This Expedia deal was found by Cheapflights users on 4/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/133:07 pm
MDW
-
LAX
1 stop7h 59m
Frontier
Tue 5/1911:20 pm
LAX
-
MDW
1 stop9h 49m
Frontier
Deal found 4/26$205

Find 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 April 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$154
(Kiwi.com)

One-way from

$89
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$304

Good round-trip deal

$283 or less

Good one-way deal

$139 or less
Provider with most accurate pricing for Chicago (CHI)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Los Angeles flights.
Search Deals
From Illinois to Los Angeles
Search Deals
One-way flight from Illinois to Los Angeles
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Los Angeles.
Search Deals
Price to beat on a one-way flight from Illinois to Los Angeles.
Search Deals

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 April 29, 2026.
Use the filters below to find and compare flights from Illinois to Los Angeles that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Tue 6/9

3:55 pm-8:55 pm

1 stop7h 00m

Los Angeles

Wed 6/17

7:40 am-1:50 pm

Nonstop4h 10m

$227

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 5/23

6:45 am-9:10 am

Nonstop4h 25m

Los Angeles

Tue 5/26

5:00 am-1:30 pm

1 stop6h 30m

$230

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Tue 6/23

7:16 pm-11:54 pm

1 stop6h 38m

Los Angeles

Mon 6/29

12:30 am-8:37 am

1 stop6h 07m

$237

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Wed 8/12

8:55 am-2:41 pm

1 stop7h 46m

Los Angeles

Wed 8/19

9:50 am-6:01 pm

1 stop6h 11m

$237

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Tue 6/23

5:22 pm-10:46 pm

1 stop7h 24m

Los Angeles

Tue 6/30

11:48 am-9:57 pm

1 stop8h 09m

$237

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sat 5/30

6:00 am-12:10 pm

2 stops8h 10m

Los Angeles

Mon 6/1

9:40 pm-5:25 am

1 stop5h 45m

$266

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Sun 5/24

6:23 am-12:10 pm

1 stop7h 47m

Los Angeles

Fri 5/29

12:10 pm-9:09 pm

1 stop6h 59m

$277

ChicagoLos Angeles

ORD - LAX

ORDLAX

Chicago O'Hare Intl

Sun 5/24

7:12 am-3:29 pm

1 stop10h 17m

Los Angeles

Fri 5/29

10:35 pm-8:45 am

1 stop8h 10m

$277

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Wed 6/3

8:55 pm-11:20 pm

Nonstop4h 25m

Los Angeles

Wed 6/10

11:55 pm-5:55 am

Nonstop4h 00m

$286

ChicagoLos Angeles

MDW - LAX

MDWLAX

Chicago Midway

Thu 5/21

9:45 pm-12:10 am

Nonstop4h 25m

Los Angeles

Sat 5/23

11:55 pm-5:50 am

Nonstop3h 55m

$286

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/25

Showing 1-10 of 60 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Illinois to Los Angeles?

The price you pay for your flight from Illinois to Los Angeles may vary depending on when you book. For the best chance of a lower fare, look to book 43 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, September is the cheapest month in which you can book a flight from Illinois to Los Angeles (average of $203). Flying from Illinois to Los Angeles in March is currently the most expensive (average of $392). 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 April 29, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 35% on flights from Illinois to Los Angeles by exploring options for tickets in the morning.

What is the cheapest day to fly from Illinois to Los Angeles?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Los Angeles. Price data was last updated on April 25, 2026.

Travelers seeking maximum savings on their Illinois to Los Angeles flight should consider departing on Monday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 April 29, 2026.

The most flights from USIL to LAX are scheduled on a Wednesday (102 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (59 on average).

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

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.

  • How long is the flight from Illinois to Los Angeles?

    Delta, Southwest, and United Airlines can get you from Illinois to Los Angeles in just under 4h 25m. Your travel time can differ by up to 2h 35m. The distance between Illinois and Los Angeles is about 1746 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 Frontier ($49), Spirit Airlines ($57), and United Airlines ($94).

  • 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: Austrian Airlines (81%), Brussels Airlines (80%), Air China( 79%).

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

    The cheapest flight price from Illinois to Los Angeles is $83. On average you can expect to pay $933. The most popular route, (Chicago O'Hare Intl - Los Angeles), can usually be booked for $154.

  • 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, September is the cheapest month in which you can book a flight from Illinois to Los Angeles (average of $203). Flying from Illinois to Los Angeles in March is currently the most expensive (average of $392). 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
Downey
Avalon
Oceanside
Inglewood
Carson
Universal City
Torrance
El Segundo
Buena Park
Hesperia
Oxnard
Garden Grove
Redondo Beach
Lake Elsinore
West Hollywood
Fountain Valley
Glendale
Lancaster
Moreno Valley
Manhattan Beach

Browse thousands of different options on Cheapflights for your next trip

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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 8 airlines flying from Illinois to Los Angeles

Discover the top 8 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 April 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$84Average$246FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$106Average$180FlexibilityNo cancel feeOn-time65%
DeltaCheapest$128Average$357FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$139Average$633FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$177Average$386FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$194Average$431FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$199Average$290FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$213Average$351FlexibilityNo cancel feeOn-time63%

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