$67+ 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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ORD
Jan 13 — Jan 201
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Los Angeles to Illinois
Cheapest flights from Los Angeles to IllinoisExplore 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 14, 2025.
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 14, 2025.
This Expedia deal was found by Cheapflights users on 12/12. 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 12/2411:59 pmLAX - ORD
1 stop30h 53mFrontier
Thu 1/810:32 pmORD - LAX
1 stop15h 48mFrontier
Deal found 12/12![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 12/12. 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.
Thu 12/259:41 amLAX - ORD
Nonstop4h 08mFrontier
Fri 1/98:08 pmORD - LAX
1 stop14h 54mFrontier
Deal found 12/12![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 12/3111:59 pmLAX - ORD
Nonstop4h 06mMultiple Airlines
Mon 1/127:50 pmORD - LAX
1 stop19h 37mMultiple Airlines
Deal found 12/12![Multiple Airlines logo]()
$145
This Frontier deal was found by Cheapflights users on 12/12. 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 12/259:41 amLAX - ORD
Nonstop4h 08mFrontier
Mon 1/52:57 pmORD - LAX
1 stop10h 21mFrontier
Deal found 12/12![Frontier logo]()
$151
This Frontier deal was found by Cheapflights users on 12/13. 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 12/259:41 amLAX - ORD
Nonstop4h 08mFrontier
Thu 1/19:33 pmORD - LAX
1 stop12h 42mFrontier
Deal found 12/13![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 12/12. 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.
Thu 12/2511:59 pmLAX - ORD
Nonstop4h 06mSpirit Airlines
Mon 1/57:44 pmORD - LAX
Nonstop4h 45mSpirit Airlines
Deal found 12/12![Spirit Airlines logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 12/12. 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.
Sun 12/286:34 amLAX - ORD
1 stop15h 38mFrontier
Thu 1/810:32 pmORD - LAX
1 stop15h 48mFrontier
Deal found 12/12![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 12/12. 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 12/3111:59 pmLAX - ORD
Nonstop4h 06mMultiple Airlines
Tue 1/1312:00 pmORD - LAX
1 stop25h 28mMultiple Airlines
Deal found 12/12![Multiple Airlines logo]()
$164
This Expedia deal was found by Cheapflights users on 12/12. 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.
Thu 12/256:34 amLAX - ORD
1 stop15h 38mFrontier
Thu 1/810:32 pmORD - LAX
1 stop15h 48mFrontier
Deal found 12/12![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 12/12. 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.
Thu 12/259:41 amLAX - ORD
Nonstop4h 08mMultiple Airlines
Sat 1/105:50 amORD - LAX
2 stops13h 49mMultiple Airlines
Deal found 12/12![Multiple Airlines logo]()
$168
This Expedia deal was found by Cheapflights users on 12/12. 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 12/2411:59 pmLAX - MDW
1 stop19h 59mFrontier
Thu 1/86:10 amMDW - LAX
1 stop9h 57mFrontier
Deal found 12/12![Frontier logo]()
$182
This Frontier deal was found by Cheapflights users on 12/14. 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 12/3110:45 pmLAX - STL
1 stop8h 55mFrontier
Fri 1/28:42 pmSTL - LAX
1 stop12h 56mFrontier
Deal found 12/14![Frontier logo]()
$228
Find 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 December 14, 2025.
Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $137 (Kiwi.com) |
One-way from | $67 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $368 |
Good round-trip deal | $310 or less |
Good one-way deal | $159 or less |
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 December 14, 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 - RFD
LAXRFD
Los Angeles
Thu 1/29
8:57 pm-5:26 pm
1 stop18h 29m
Chicago Greater Rockford
Mon 2/2
6:16 pm-10:54 am
1 stop18h 38m
$213
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Fri 2/20
11:11 am-9:26 pm
1 stop8h 15m
Lambert-St Louis
Thu 2/26
10:11 pm-7:46 am
2 stops11h 35m
$217
Los AngelesChicago
LAX - RFD
LAXRFD
Los Angeles
Tue 1/27
11:51 am-1:15 pm
1 stop23h 24m
Chicago Greater Rockford
Mon 2/2
7:38 pm-12:50 pm
2 stops19h 12m
$247
Los AngelesChicago
LAX - RFD
LAXRFD
Los Angeles
Wed 1/21
4:07 pm-12:34 pm
1 stop18h 27m
Chicago Greater Rockford
Wed 1/28
2:05 pm-8:51 am
1 stop20h 46m
$268
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Thu 12/18
3:30 pm-9:25 pm
1 stop27h 55m
Lambert-St Louis
Mon 12/22
10:10 pm-8:31 pm
1 stop24h 21m
$275
Los AngelesMoline
LAX - MLI
LAXMLI
Los Angeles
Sat 1/10
4:07 pm-8:36 pm
1 stop26h 29m
Moline Quad-City
Sat 1/17
2:53 pm-1:32 pm
1 stop24h 39m
$277
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Thu 2/12
12:43 pm-6:55 pm
Nonstop4h 12m
Chicago O'Hare Intl
Wed 2/18
6:20 pm-9:09 pm
Nonstop4h 49m
$278
Los AngelesMoline
LAX - MLI
LAXMLI
Los Angeles
Sun 1/11
11:05 pm-10:12 am
1 stop9h 07m
Moline Quad-City
Sun 1/18
10:47 am-3:31 pm
1 stop6h 44m
$293
Los AngelesMoline
LAX - MLI
LAXMLI
Los Angeles
Fri 1/9
12:30 am-10:12 am
1 stop7h 42m
Moline Quad-City
Sat 1/17
3:45 pm-10:59 pm
1 stop9h 14m
$293
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Sat 2/21
5:15 am-10:40 am
Nonstop3h 25m
Lambert-St Louis
Wed 2/25
10:25 am-12:45 pm
Nonstop4h 20m
$295
Showing 1-10 of 60 results
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, March is the cheapest month in which you can book a flight from Los Angeles to Illinois (average of $77). Flying from Los Angeles to Illinois in October is currently the most expensive (average of $147). 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 14, 2025.
Unlike at noon, when flights are generally more expensive, you can save up to 34% on flights from Los Angeles to Illinois by exploring options for tickets in the afternoon.
What is the cheapest day to fly from Los Angeles to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Los Angeles to Illinois. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Los Angeles to Illinois flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 14, 2025.
Read through reviews of airlines operating flights from Los Angeles to Illinois, such as Southwest, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
7.9
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
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.
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 8 airlines flying from Los Angeles to Illinois
Discover the top 8 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 14, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$236 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$104 | Average$211 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$130 | Average$330 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$179 | Average$364 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$200 | Average$438 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$201 | Average$456 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$218 | Average$369 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$221 | Average$409 | FlexibilityNo cancel fee | On-time75% |