Illinois

$73+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ORD
mar. 8 — mar. 151
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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 marzo 3, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$137
(Cheapflightsfares)

One-way from

$73
(eDestinos)

Popular in

March

Cheapest in

October

Average price

$348

Good round-trip deal

$260 or less

Good one-way deal

$61 or less
Provider with most accurate pricing for Los Angeles-Chicago (CHI) flight deals.
Provider most trusted by Cheapflights users for Los Angeles-Chicago (CHI) flights.
From Los Angeles to Illinois
One-way flight from Los Angeles to Illinois
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Average for round-trip flights in March 2025
Price to beat on a round-trip flight from Los Angeles to Illinois.
Price to beat on a one-way flight from Los Angeles to Illinois.

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 marzo 3, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 3/3. 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. 4/24:29 pmLAX - ORD
1 stop15h 16mSpirit Airlines
lun. 4/78:09 amORD - LAX
1 stop9h 41mSpirit Airlines
Deal found 3/3$137
This Kiwi.com deal was found by Cheapflights users on 3/2. 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.
sáb. 8/99:00 amLAX - RFD
Nonstop3h 44mAllegiant Air
sáb. 8/163:34 pmRFD - LAX
Nonstop4h 09mAllegiant Air
Deal found 3/2$140
This Frontier deal was found by Cheapflights users on 3/2. 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.
mar. 4/810:39 amLAX - MDW
1 stop11h 42mFrontier
mié. 4/96:45 amMDW - LAX
1 stop9h 00mFrontier
Deal found 3/2$149
This American Airlines deal was found by Cheapflights users on 3/2. 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.
mar. 4/112:20 amLAX - ORD
Nonstop4h 05mAmerican Airlines
sáb. 4/55:30 pmORD - LAX
Nonstop4h 31mAmerican Airlines
Deal found 3/2$179
This Priceline deal was found by Cheapflights users on 3/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/112:35 pmLAX - ORD
1 stop8h 02mMultiple Airlines
lun. 4/142:58 pmORD - LAX
1 stop6h 01mMultiple Airlines
Deal found 3/3$194
This Cheapflightsfares deal was found by Cheapflights users on 3/3. 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.
sáb. 5/244:46 pmLAX - ORD
Nonstop4h 19mFrontier
dom. 6/16:10 amORD - LAX
Nonstop4h 33mFrontier
Deal found 3/3$196
This Southwest deal was found by Cheapflights users on 3/3. 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.
mar. 4/155:20 pmLAX - MDW
Nonstop4h 05mSouthwest
mar. 4/221:50 pmMDW - LAX
Nonstop4h 30mSouthwest
Deal found 3/3$208
This Mytrip deal was found by Cheapflights users on 3/2. 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. 4/2410:23 amLAX - RFD
1 stop8h 23mMultiple Airlines
dom. 4/279:36 pmRFD - LAX
1 stop16h 33mMultiple Airlines
Deal found 3/2$255
This Delta deal was found by Cheapflights users on 3/3. 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.
lun. 4/1412:45 amLAX - MDW
1 stop6h 55mDelta
mar. 4/223:02 pmMDW - LAX
1 stop6h 58mDelta
Deal found 3/3$257
This Delta deal was found by Cheapflights users on 3/3. 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.
lun. 4/1412:45 amLAX - ORD
1 stop5h 50mDelta
mar. 4/225:05 pmORD - LAX
1 stop7h 25mDelta
Deal found 3/3$257
This Alaska Airlines deal was found by Cheapflights users on 3/3. 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.
sáb. 4/266:00 amLAX - ORD
2 stops13h 59mAlaska Airlines
mar. 4/296:00 amORD - LAX
1 stop10h 46mAlaska Airlines
Deal found 3/3$282
This Southwest deal was found by Cheapflights users on 3/3. 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.
jue. 4/105:05 amLAX - ORD
1 stop7h 55mSouthwest
lun. 4/142:55 pmORD - LAX
2 stops9h 00mSouthwest
Deal found 3/3$284

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 marzo 3, 2025.

Fly from

Los Angeles

Fly to

Illinois

Route

Depart

Return

Price

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

mié. 4/2

4:29 pm-9:45 am

1 stop15h 16m

Chicago O'Hare Intl

lun. 4/7

8:09 am-3:50 pm

1 stop9h 41m

$137

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

mar. 4/8

10:39 am-12:21 am

1 stop11h 42m

Chicago Midway

mié. 4/9

6:45 am-1:45 pm

1 stop9h 00m

$149

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

mar. 4/1

12:20 am-6:25 am

Nonstop4h 05m

Chicago O'Hare Intl

sáb. 4/5

5:30 pm-8:01 pm

Nonstop4h 31m

$179

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

vie. 4/11

2:35 pm-12:37 am

1 stop8h 02m

Chicago O'Hare Intl

lun. 4/14

2:58 pm-6:59 pm

1 stop6h 01m

$194

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

sáb. 5/24

4:46 pm-11:05 pm

Nonstop4h 19m

Chicago O'Hare Intl

dom. 6/1

6:10 am-8:43 am

Nonstop4h 33m

$196

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

mar. 4/15

5:20 pm-11:25 pm

Nonstop4h 05m

Chicago Midway

mar. 4/22

1:50 pm-4:20 pm

Nonstop4h 30m

$208

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

mié. 4/30

6:46 am-6:20 pm

1 stop9h 34m

Chicago O'Hare Intl

mié. 5/7

6:00 am-12:56 pm

1 stop8h 56m

$254

Los AngelesChicago

LAX - RFD

LAXRFD

Los Angeles

jue. 4/24

10:23 am-8:46 pm

1 stop8h 23m

Chicago Greater Rockford

dom. 4/27

9:36 pm-12:09 pm

1 stop16h 33m

$255

Los AngelesChicago

LAX - MDW

LAXMDW

Los Angeles

lun. 4/14

12:45 am-9:40 am

1 stop6h 55m

Chicago Midway

mar. 4/22

3:02 pm-8:00 pm

1 stop6h 58m

$257

Los AngelesChicago

LAX - ORD

LAXORD

Los Angeles

lun. 4/14

12:45 am-8:35 am

1 stop5h 50m

Chicago O'Hare Intl

mar. 4/22

5:05 pm-10:30 pm

1 stop7h 25m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Showing 1-10 of 60 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 $322). 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 marzo 3, 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 marzo 3, 2025.

The most flights from LAX to USIL are scheduled on a Sunday (100 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (23 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 marzo 3, 2025.
To help decide which airline to fly from Los Angeles to Illinois, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.2

Entertainment

7.6

Crew

8.7

Overall

8.1

Food

7.1

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Boarding

8.2

Entertainment

7.6

Crew

8.7

Overall

8.1

Food

7.1

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Boarding

8.2

Entertainment

7.6

Crew

8.7

Overall

8.1

Food

7.1

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

8.0
Very good

Boarding

8.2

Entertainment

7.6

Crew

8.7

Overall

8.1

Food

7.1

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Boarding

8.2

Entertainment

7.6

Crew

8.7

Overall

8.1

Food

7.1

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Boarding

8.2

Entertainment

7.6

Crew

8.7

Overall

8.1

Food

7.1

Comfort

8.1

Reviews

1 / 20

10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

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 Spirit Airlines ($73), Frontier ($74), and Allegiant Air ($80).

  • What are the most popular routes 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: Fiji Airways (100%), Atlas Air (100%), Air China (94%).

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

    While on average a flight from Los Angeles to Illinois is generally $850, our data shows the cheapest flight currently is $70. When looking at the most popular route, (Los Angeles - Chicago O'Hare Intl), you can expect to pay $102 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 $322). 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

Browse thousands of different options on Cheapflights for your next trip

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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.

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 marzo 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$49Average$120FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$77Average$208FlexibilityNo cancel feeOn-time65%
FrontierCheapest$106Average$197FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$149Average$362FlexibilityNo cancel feeOn-time83%
SouthwestCheapest$157Average$330FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$179Average$442FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$182Average$459FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$221Average$399FlexibilityNo cancel feeOn-time75%
DeltaCheapest$236Average$457FlexibilityNo cancel feeOn-timeN/A
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