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$83+ Cheap flights from Los Angeles (LAX) to Illinois

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.
LAX — ORD
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
1 adult, Economy
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Cheap flight deals from Los Angeles to Illinois

Keep the following information in mind while searching for Los Angeles to Illinois flight deals. Data was last updated julio 30, 2025.

Round-trip from

$163
(Cheapflightsfares)

One-way from

$83
(FlightHub)

Popular in

December

Cheapest in

February

Average price

$307

Good round-trip deal

$231 or less

Good one-way deal

$135 or less
From Los Angeles to Illinois
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One-way flight from Los Angeles to Illinois
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Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 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 Los Angeles to Illinois.
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Price to beat on a one-way flight from Los Angeles to Illinois.
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Find flight deals from Los Angeles to Illinois

Cheapest flights from Los Angeles to Illinois
Explore the most affordable flight options available from Los Angeles to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 30, 2025.

This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/1311:39 pmLAX - ORD
Nonstop4h 01mSpirit Airlines
sáb. 8/237:09 pmORD - LAX
Nonstop4h 27mSpirit Airlines
Deal found 7/28$163
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.
mié. 8/137:58 pmLAX - ORD
1 stop6h 52mMultiple Airlines
dom. 8/176:10 amORD - LAX
Nonstop4h 29mMultiple Airlines
Deal found 7/28$164
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/144:24 pmLAX - ORD
Nonstop4h 22mFrontier
vie. 8/226:20 amORD - LAX
Nonstop4h 29mFrontier
Deal found 7/28$166
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/49:36 amLAX - RFD
1 stop7h 16mMultiple Airlines
dom. 9/79:16 pmRFD - LAX
1 stop15h 30mMultiple Airlines
Deal found 7/29$174
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.
sáb. 8/3011:15 pmLAX - MDW
Nonstop3h 55mSouthwest
mié. 9/39:10 pmMDW - LAX
Nonstop4h 20mSouthwest
Deal found 7/30$197
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/276:00 amLAX - ORD
Nonstop4h 13mAmerican Airlines
mié. 9/109:10 amORD - LAX
Nonstop4h 29mAmerican Airlines
Deal found 7/28$197
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/38:00 amLAX - MDW
1 stop7h 37mDelta
mar. 9/96:17 pmMDW - LAX
1 stop6h 49mDelta
Deal found 7/28$217
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/137:58 pmLAX - MLI
1 stop13h 37mMultiple Airlines
dom. 8/1712:25 pmMLI - LAX
1 stop13h 33mMultiple Airlines
Deal found 7/29$228
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/71:02 pmLAX - MDW
1 stop8h 15mFrontier
lun. 8/116:20 amMDW - LAX
1 stop7h 47mFrontier
Deal found 7/28$236
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.
vie. 9/269:36 amLAX - MDW
1 stop9h 16mMultiple Airlines
lun. 9/297:03 pmMDW - LAX
2 stops28h 01mMultiple Airlines
Deal found 7/30$246
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/33:48 pmLAX - STL
1 stop19h 54mFrontier
jue. 8/72:27 pmSTL - LAX
1 stop7h 25mFrontier
Deal found 7/29$285
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/137:58 pmLAX - STL
2 stops15h 34mSpirit Airlines
lun. 8/252:30 pmSTL - LAX
2 stops19h 47mSpirit Airlines
Deal found 7/28$286

Cheapflights Fare Finder

 
Customize your flight search to find flights from Los Angeles to Illinois 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 julio 30, 2025.
Use the filters below to find and compare flights from Los Angeles to Illinois that are best for you.

Fly from

Los Angeles

Fly to

Illinois

Route

Depart

Return

Price

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

mié. 8/13

11:39 pm-5:40 am

Nonstop4h 01m

Chicago O'Hare Intl

sáb. 8/23

7:09 pm-9:36 pm

Nonstop4h 27m

$163

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

mié. 8/13

7:58 pm-4:50 am

1 stop6h 52m

Chicago O'Hare Intl

dom. 8/17

6:10 am-8:39 am

Nonstop4h 29m

$164

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

jue. 8/14

4:24 pm-10:46 pm

Nonstop4h 22m

Chicago O'Hare Intl

vie. 8/22

6:20 am-8:49 am

Nonstop4h 29m

$166

Los AngelesChicago

LAX - RFD

LAXRFD

Los Angeles

jue. 9/4

9:36 am-6:52 pm

1 stop7h 16m

Chicago Greater Rockford

dom. 9/7

9:16 pm-10:46 am

1 stop15h 30m

$174

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

sáb. 8/30

11:15 pm-5:10 am

Nonstop3h 55m

Chicago Midway

mié. 9/3

9:10 pm-11:30 pm

Nonstop4h 20m

$197

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

mié. 8/27

6:00 am-12:13 pm

Nonstop4h 13m

Chicago O'Hare Intl

mié. 9/10

9:10 am-11:39 am

Nonstop4h 29m

$197

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

mié. 9/3

12:15 pm-9:26 pm

1 stop7h 11m

Chicago Midway

mié. 9/10

9:15 am-2:59 pm

1 stop7h 44m

$217

Los AngelesMoline

LAX - MLI

LAXMLI

Los Angeles

mié. 8/13

7:58 pm-11:35 am

1 stop13h 37m

Moline Quad-City

dom. 8/17

12:25 pm-11:58 pm

1 stop13h 33m

$228

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

jue. 8/7

1:02 pm-11:17 pm

1 stop8h 15m

Chicago Midway

lun. 8/11

6:20 am-12:07 pm

1 stop7h 47m

$236

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

vie. 9/26

9:36 am-8:52 pm

1 stop9h 16m

Chicago Midway

lun. 9/29

7:03 pm-9:04 pm

2 stops28h 01m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 59 results
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Best time to book a flight from Los Angeles to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Los Angeles 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 Los Angeles to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Los Angeles to Illinois (average of $245). Flying from Los Angeles to Illinois in March is currently the most expensive (average of $321). 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 LAX to IL?

Find hourly flight availability from Los Angeles to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 30, 2025.

When flying from Los Angeles to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Los Angeles to Illinois

Explore weekly flight availability from Los Angeles to Illinois. 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 julio 30, 2025.

The most flights from LAX to USIL are scheduled on a Monday (127 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (76 on average).

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated julio 30, 2025.
Read through reviews of airlines operating flights from Los Angeles to Illinois, 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

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

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 Los Angeles to Illinois. 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 from for flights from Los Angeles to Illinois?

    Located just 9.4 mi from the city center, Los Angeles (LAX) is the airport most travelers will use when flying to Illinois from Los Angeles.

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

    The cheapest airlines for a one-way flight from Los Angeles to Illinois are Frontier ($83), Spirit Airlines ($84), and Southwest ($99).

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

    While some choose either Los Angeles - Chicago Midway or Los Angeles - Lambert-St Louis, Los Angeles - Chicago O'Hare Intl is the most popular route from Los Angeles to Illinois.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Los Angeles to Illinois on time: Austrian Airlines (96%), China Southern (93%), Finnair (89%).

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

    While on average a flight from Los Angeles to Illinois is generally $1,075, our data shows the cheapest flight currently is $78. When looking at the most popular route, (Los Angeles - Chicago O'Hare Intl), you can expect to pay $105 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Los Angeles to Illinois 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 Los Angeles to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Los Angeles to Illinois (average of $245). Flying from Los Angeles to Illinois in March is currently the most expensive (average of $321). 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

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Alternative routes for Los Angeles to Illinois

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

Discover the top 9 airlines that operate flights from Los Angeles to Illinois. 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$44Average$130FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$67Average$210FlexibilityNo cancel feeOn-time65%
FrontierCheapest$96Average$219FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$130Average$330FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$149Average$446FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$157Average$363FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$183Average$480FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$221Average$397FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$398FlexibilityNo cancel feeOn-timeN/A

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