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$90+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ORD
Jan 4 — Jan 111
Sat 1/4
Sat 1/11
1 adult, Economy
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Cheap flight deals from Los Angeles to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Los Angeles (LAX) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 30, 2024.

Round-trip from

$169
(FlightHub)

One-way from

$90
(Southwest)
From Los Angeles to Illinois
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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 December 30, 2024.

This Frontier deal was found by Cheapflights users on 12/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:41 pmLAX - MDW
1 stop5h 46mFrontier
Mon 1/68:41 pmMDW - LAX
1 stop12h 52mFrontier
Deal found 12/30$296
This Orbitz deal was found by Cheapflights users on 12/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/313:15 pmLAX - ORD
Nonstop4h 09mSpirit Airlines
Tue 1/79:35 pmORD - LAX
1 stop12h 11mSpirit Airlines
Deal found 12/30$406
This Booking.com deal was found by Cheapflights users on 12/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/318:09 pmLAX - ORD
1 stop25h 37mMultiple Airlines
Tue 1/79:35 pmORD - LAX
1 stop12h 11mMultiple Airlines
Deal found 12/30$419
This Frontier deal was found by Cheapflights users on 12/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/3011:08 amLAX - ORD
1 stop9h 49mFrontier
Wed 1/812:42 pmORD - LAX
1 stop10h 13mFrontier
Deal found 12/30$521
This Alaska Airlines deal was found by Cheapflights users on 12/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:00 amLAX - ORD
1 stop9h 59mAlaska Airlines
Thu 1/95:28 pmORD - LAX
1 stop8h 31mAlaska Airlines
Deal found 12/30$625
This American Airlines deal was found by Cheapflights users on 12/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:27 amLAX - ORD
Nonstop4h 10mAmerican Airlines
Tue 1/147:18 amORD - LAX
Nonstop4h 36mAmerican Airlines
Deal found 12/30$638
This United deal was found by Cheapflights users on 12/30. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:45 amLAX - ORD
1 stop7h 23mUnited Airlines
Tue 1/143:35 pmORD - LAX
Nonstop4h 39mUnited Airlines
Deal found 12/30$648
This Southwest deal was found by Cheapflights users on 12/30. 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.
Tue 12/315:35 amLAX - MDW
Nonstop4h 05mSouthwest
Tue 1/78:35 amMDW - LAX
1 stop7h 50mSouthwest
Deal found 12/30$656
This Delta deal was found by Cheapflights users on 12/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:45 amLAX - ORD
1 stop6h 06mDelta
Tue 1/72:25 pmORD - LAX
1 stop8h 20mDelta
Deal found 12/30$711
This American Airlines deal was found by Cheapflights users on 12/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:27 amLAX - STL
1 stop9h 05mAmerican Airlines
Tue 1/146:03 amSTL - LAX
Nonstop4h 18mAmerican Airlines
Deal found 12/30$717
This United deal was found by Cheapflights users on 12/29. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3110:51 pmLAX - MLI
2 stops16h 12mUnited Airlines
Fri 1/105:28 pmMLI - LAX
2 stops16h 11mUnited Airlines
Deal found 12/29$725
This United Airlines deal was found by Cheapflights users on 12/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3112:45 amLAX - STL
1 stop7h 14mUnited Airlines
Tue 1/146:15 amSTL - LAX
1 stop7h 16mUnited Airlines
Deal found 12/30$726

Find flights from Los Angeles to Illinois within your budget

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 December 30, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Thu 1/16

11:07 am-11:44 pm

1 stop10h 37m

Chicago O'Hare Intl

Sun 1/19

11:12 am-1:51 pm

Nonstop4h 39m

$169

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Mon 1/13

9:11 am-9:52 pm

1 stop10h 41m

Chicago O'Hare Intl

Wed 1/22

1:39 pm-10:46 am

2 stops23h 07m

$170

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Thu 2/13

2:35 pm-12:17 am

1 stop7h 42m

Chicago Midway

Sat 2/22

6:40 am-5:45 pm

2 stops13h 05m

$173

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Sun 1/12

4:16 pm-9:06 am

1 stop14h 50m

Lambert-St Louis

Wed 1/22

7:09 pm-12:35 am

1 stop7h 26m

$175

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Tue 1/28

8:30 am-2:35 pm

Nonstop4h 05m

Chicago Midway

Tue 2/4

1:15 pm-3:55 pm

Nonstop4h 40m

$179

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Fri 1/31

8:18 pm-3:13 pm

1 stop16h 55m

Chicago O'Hare Intl

Sun 2/2

7:00 am-5:02 pm

2 stops36h 02m

$180

Los AngelesChicago

LAX - RFD

LAXRFD

Los Angeles

Sat 5/24

6:00 am-11:44 am

Nonstop3h 44m

Chicago Greater Rockford

Wed 5/28

8:58 pm-11:07 pm

Nonstop4h 09m

$193

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

Fri 2/21

12:25 am-6:14 am

Nonstop3h 49m

Chicago O'Hare Intl

Wed 2/26

3:17 pm-6:00 pm

Nonstop4h 43m

$208

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

Thu 2/13

3:50 pm-11:28 am

2 stops17h 38m

Chicago Midway

Thu 2/20

6:40 am-12:25 am

1 stop19h 45m

$220

Los AngelesSt. Louis

LAX - STL

LAXSTL

Los Angeles

Thu 2/6

8:48 pm-1:53 pm

2 stops15h 05m

Lambert-St Louis

Thu 2/13

11:08 pm-9:40 am

1 stop12h 32m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

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.

Travel insights for flights from Los Angeles to Illinois

Get recent, data-driven insights about flights from Los Angeles to Illinois including ideal travel times, pricing trends, and more.

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 $317). 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 December 30, 2024.

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 December 30, 2024.

The most flights from LAX to USIL are scheduled on a Friday (111 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (74 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 December 30, 2024.
To help decide which airline to fly from Los Angeles to Illinois, see what other customers have to say about United Airlines, Alaska Airlines and Frontier. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,715 reviews

Entertainment

7.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
4,715 reviews
Southwest
8.1
Very good
4,715 reviews

Entertainment

7.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,594 reviews
Southwest
8.1
Very good
4,715 reviews

Entertainment

7.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,540 reviews
Southwest
8.1
Very good
4,715 reviews

Entertainment

7.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,715 reviews

Entertainment

7.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Allegiant Air
7.4
Good
809 reviews
Southwest
8.1
Very good
4,715 reviews

Entertainment

7.7

Food

7.2

Overall

8.1

Boarding

8.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

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 Southwest ($90), American Airlines ($90), and Frontier ($92).

  • 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: Brussels Airlines (95%), Emirates (95%), Fiji Airways (91%).

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

    While on average a flight from Los Angeles to Illinois is generally $876, our data shows the cheapest flight currently is $106. When looking at the most popular route, (Los Angeles - Chicago O'Hare Intl), you can expect to pay $79 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 $317). 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.

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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 December 30, 2024.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$49Average$120FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$82Average$208FlexibilityNo cancel feeOn-time65%
FrontierCheapest$105Average$200FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$149Average$362FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$157Average$323FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$179Average$422FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$183Average$477FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$221Average$446FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$436FlexibilityNo cancel feeOn-timeN/A
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