$63+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ORD
Feb 27 — Mar 61
1 adult, Economy
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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 January 28, 2026.
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 January 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Wed 4/86:15 am
LAX
- ORD
1 stop6h 04m
Frontier
Tue 4/147:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Deal found 1/25![Frontier logo]()
$176
This Frontier deal was found by Cheapflights users on 1/26. 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.
Wed 4/1511:36 pm
LAX
- ORD
Nonstop4h 14m
Frontier
Sun 4/197:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Deal found 1/26![Frontier logo]()
$177
This Cheapflightsfares deal was found by Cheapflights users on 1/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:39 am
LAX
- ORD
Nonstop4h 03m
Spirit Airlines
Mon 4/206:00 am
ORD
- LAX
Nonstop4h 34m
Spirit Airlines
Deal found 1/26![Spirit Airlines logo]()
$178
This Frontier deal was found by Cheapflights users on 1/27. 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 4/163:03 pm
LAX
- ORD
1 stop7h 49m
Frontier
Sun 4/197:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Deal found 1/27![Frontier logo]()
$179
This Expedia deal was found by Cheapflights users on 1/27. 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.
Thu 4/910:53 am
LAX
- MDW
1 stop10h 20m
Frontier
Tue 4/146:00 am
MDW
- LAX
1 stop8h 36m
Frontier
Deal found 1/27![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1811:36 pm
LAX
- ORD
Nonstop4h 14m
Multiple Airlines
Sat 5/236:00 am
ORD
- LAX
Nonstop4h 34m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2012:56 pm
LAX
- MDW
1 stop8h 45m
Frontier
Sun 2/223:21 pm
MDW
- LAX
1 stop17h 45m
Frontier
Deal found 1/26![Frontier logo]()
$181
This Frontier deal was found by Cheapflights users on 1/26. 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 4/2811:36 pm
LAX
- ORD
Nonstop4h 14m
Frontier
Sat 5/98:43 am
ORD
- LAX
1 stop12h 06m
Frontier
Deal found 1/26![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/131:05 am
LAX
- MDW
1 stop12h 14m
Multiple Airlines
Mon 3/27:25 pm
MDW
- LAX
1 stop22h 20m
Multiple Airlines
Deal found 1/26![Multiple Airlines logo]()
$182
This Frontier deal was found by Cheapflights users on 1/26. 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.
Thu 4/3011:36 pm
LAX
- ORD
Nonstop4h 14m
Frontier
Fri 5/87:21 pm
ORD
- LAX
Nonstop4h 45m
Frontier
Deal found 1/26![Frontier logo]()
$182
This Cheapflightsfares deal was found by Cheapflights users on 1/28. 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.
Wed 4/2912:51 am
LAX
- ORD
Nonstop3h 55m
Spirit Airlines
Mon 5/48:53 pm
ORD
- LAX
1 stop13h 22m
Spirit Airlines
Deal found 1/28![Spirit Airlines logo]()
$183
This Frontier deal was found by Cheapflights users on 1/26. 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.
Wed 4/298:54 pm
LAX
- MDW
1 stop9h 10m
Frontier
Thu 5/76:00 am
MDW
- LAX
1 stop8h 36m
Frontier
Deal found 1/26![Frontier logo]()
$184
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 January 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $176 (Kiwi.com) |
One-way from | $63 (WAYA) |
Popular in | January |
Cheapest in | September |
Average price | $369 |
Good round-trip deal | $321 or less |
Good one-way deal | $193 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 January 28, 2026.
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
Fri 2/20
9:21 pm-11:10 am
1 stop11h 49m
Chicago Greater Rockford
Mon 2/23
7:51 pm-3:45 pm
1 stop21h 54m
$245
Los AngelesChicago
LAX - MDW
LAXMDW
Los Angeles
Mon 3/16
11:55 pm-5:55 am
Nonstop4h 00m
Chicago Midway
Wed 3/25
7:05 am-9:40 am
Nonstop4h 35m
$257
Los AngelesChicago
LAX - MDW
LAXMDW
Los Angeles
Wed 4/1
9:40 pm-8:53 am
1 stop9h 13m
Chicago Midway
Tue 4/7
9:30 am-4:57 pm
1 stop9h 27m
$257
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Tue 2/24
7:40 am-10:59 pm
1 stop13h 19m
Chicago O'Hare Intl
Wed 2/25
6:04 am-5:32 pm
1 stop13h 28m
$261
Los AngelesChicago
LAX - MDW
LAXMDW
Los Angeles
Wed 3/11
5:30 am-11:25 am
Nonstop3h 55m
Chicago Midway
Sat 3/14
3:05 pm-9:20 pm
2 stops8h 15m
$275
Los AngelesSt. Louis
LAX - STL
LAXSTL
Los Angeles
Wed 2/18
6:33 pm-9:26 pm
1 stop24h 53m
Lambert-St Louis
Sun 2/22
3:49 pm-9:20 pm
2 stops31h 31m
$276
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Thu 3/12
12:25 am-6:20 am
Nonstop3h 55m
Chicago O'Hare Intl
Fri 3/13
9:15 pm-11:59 pm
Nonstop4h 44m
$277
Los AngelesChicago
LAX - MDW
LAXMDW
Los Angeles
Sun 3/15
7:55 am-5:54 pm
1 stop7h 59m
Chicago Midway
Wed 3/18
2:05 pm-8:27 pm
1 stop8h 22m
$277
Los AngelesChicago
LAX - MDW
LAXMDW
Los Angeles
Thu 3/12
5:10 am-11:05 am
Nonstop3h 55m
Chicago Midway
Sun 3/15
6:30 am-9:05 am
Nonstop4h 35m
$277
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Wed 3/11
11:59 am-7:49 pm
1 stop5h 50m
Chicago O'Hare Intl
Fri 3/20
7:10 pm-11:55 pm
1 stop6h 45m
$278
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 January 28, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 19% on flights from Los Angeles to Illinois by exploring options for tickets in the morning.
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 January 24, 2026.
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.
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 January 28, 2026.
The most flights from LAX to USIL are scheduled on a Monday (90 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (67 on average).
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 January 28, 2026.
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.
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWilliam Drew,Nov 2025
SJC - HNL
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Overall
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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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 January 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$86 | Average$237 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$101 | Average$206 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$130 | Average$323 | FlexibilityNo cancel fee | On-time83% | |
| Cheapest$166 | Average$204 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$179 | Average$364 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$193 | Average$417 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$203 | Average$459 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$218 | Average$368 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$221 | Average$410 | FlexibilityNo cancel fee | On-time75% |