$112 Find Cheap Flights from Los Angeles to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Los Angeles to Illinois departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Los Angeles to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$230
Moline
Moline1 stop$359
Peoria
Peoria1 stop$272
Bloomington
Bloomington1 stop$359
Champaign
Champaign1 stop$410
Springfield
Springfield1 stop$445
St. Louis
St. Louis1 stop$312
Decatur
Decatur1 stop$454
Paducah
Paducah1 stop$447
Chicago
Chicago1 stop$230
Moline
Moline1 stop$359
Peoria
Peoria1 stop$272
Bloomington
Bloomington1 stop$359
Champaign
Champaign1 stop$410
Springfield
Springfield1 stop$445
St. Louis
St. Louis1 stop$312
Decatur
Decatur1 stop$454
Paducah
Paducah1 stop$447

Book Cheap Los Angeles to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Los Angeles to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Los Angeles to Illinois

Sat, Sep 19 - Mon, Sep 21
Frontier Logo
2:01 pm - 12:23 am
LAX
-
ORD
8h 22m
1 stop
Frontier Logo
6:30 am - 1:44 pm
ORD
-
LAX
9h 14m
1 stop
$230Frontier
Tue, Sep 8 - Tue, Sep 15
Frontier Logo
11:59 pm - 6:17 am
LAX
-
ORD
4h 18mnonstop
Frontier Logo
7:25 am - 7:46 pm
ORD
-
LAX
14h 21m
2 stops
$230Frontier
Thu, Oct 15 - Sun, Oct 18
Multiple Airlines Logo
11:47 am - 8:13 pm
LAX
-
RFD
6h 26m
1 stop
Multiple Airlines Logo
9:33 pm - 3:52 pm
RFD
-
LAX
20h 19m
1 stop
$230Multiple Airlines
Tue, Sep 1 - Sat, Sep 5
Multiple Airlines Logo
12:45 pm - 11:59 pm
LAX
-
ORD
9h 14m
1 stop
Multiple Airlines Logo
9:20 pm - 12:04 am
ORD
-
LAX
4h 44mnonstop
$232Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
11:17 am - 5:47 pm
LAX
-
ORD
4h 30mnonstop
American Airlines Logo
3:20 pm - 5:47 pm
ORD
-
LAX
4h 27mnonstop
$246American Airlines
Sat, Sep 5 - Tue, Sep 15
American Airlines Logo
6:00 am - 12:23 pm
LAX
-
ORD
4h 23mnonstop
American Airlines Logo
7:03 pm - 9:37 pm
ORD
-
LAX
4h 34mnonstop
$246American Airlines
Thu, Sep 17 - Sun, Sep 20
United Airlines Logo
10:35 pm - 4:45 am
LAX
-
ORD
4h 10mnonstop
United Airlines Logo
7:00 am - 9:32 am
ORD
-
LAX
4h 32mnonstop
$247United Airlines
Thu, Sep 17 - Sun, Sep 20
United Airlines Logo
10:35 pm - 4:45 am
LAX
-
ORD
4h 10mnonstop
United Airlines Logo
7:00 am - 9:32 am
ORD
-
LAX
4h 32mnonstop
$247United Airlines
Fri, Nov 13 - Sat, Nov 14
Delta Logo
5:59 pm - 11:55 pm
LAX
-
ORD
3h 56mnonstop
Delta Logo
5:00 pm - 7:30 pm
ORD
-
LAX
4h 30mnonstop
$247Delta
Thu, Nov 12 - Thu, Nov 12
Delta Logo
7:35 am - 1:32 pm
LAX
-
ORD
3h 57mnonstop
Delta Logo
6:28 pm - 9:05 pm
ORD
-
LAX
4h 37mnonstop
$247Delta
Booking Insights

KAYAK's insights & trends for Los Angeles to Illinois flights

Get data-powered insights and trends into flights from Los Angeles to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Los Angeles to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Los Angeles to Illinois departing in August.

Flight prices are typical for this route right now.

Flights to Illinois from Los Angeles usually cost between $208 and $404 in August.
The lowest price found in the past 5 days was $230 on Frontier (Aug 13-Aug 19).

What is the cheapest Los Angeles to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Los Angeles found in the last 5 days was to Chicago, at $204 round-trip. The most popular route is from Los Angeles (LAX) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $204.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Los Angeles to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $347 on average. Morning departures are around 32% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $512.

Can I save money by flying with a layover from Los Angeles to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $375, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Los Angeles to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Los Angeles to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Los Angeles to Illinois is September, when tickets cost $283 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $437 and $408 respectively.

What’s the cheapest day of the week to fly from Los Angeles to Illinois?

The average price of all round-trip flights from Los Angeles to Illinois clicked on KAYAK for each day over the last 12 months.

When flying from Los Angeles to Illinois, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Los Angeles, you’ll find the best rates on Thursdays and the most expensive ones on Mondays.

How far in advance should I book a flight from Los Angeles to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Los Angeles to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Los Angeles to Illinois, you should book around 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low season

January

Cheapest flight

$112
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Los Angeles to Peoria

Flights from Los Angeles to Illinois: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Los Angeles to Illinois 
FrancisFlew with United Airlines
LAX
-
ORD
Sep 2024
Check the weather, or bring a. Raincoat! Being from sunny California, I forget it isn’t always sunshine in other states!
ShirleyFlew with United Airlines
LAX
-
ORD
May 2024
Check-in using the United AirLines app to access your boarding pass. Arrive at least two hours early at LAX airport.

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Los Angeles to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Los Angeles to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Los Angeles to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Los Angeles to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Los Angeles to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Los Angeles to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Los Angeles to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Los Angeles to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Los Angeles to the following destinations at these prices or less: Chicago $193 one-way - $334 round-trip

Reviews of the top 5 airlines serving from Los Angeles to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Los Angeles to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Los Angeles to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4228 reviews
8.0Comfort
7.0Food
8.1Boarding
8.6Crew
7.5Entertainment
Airline reviews

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

2.0 MediocreJames, Apr 2026
LAX - MCO
Read more Southwest reviews

Terrible. Even though there’s assigned seating now, they are still the slowest boarding airline of anyone.

It was good from LAX to Phoenix, But the connection in Phoenix to Tulsa was not that great. The staff on both flights were great. The choice of free entertainment was ok nothing to brag about. The 45 min delay because of some electrical issue wasn't great from Phoenix to Tulsa. We sat there with hardly any air, The seat I had was between windows so the side of the plane pushed in on you. My being a bigger man it then made the seating area uncomfortable. The seats on the plane had no power to connect to recharge your phone or anything. I would recommend that they should look into a slot or clamp to hold your phone to enjoy while watching the entertainment choices hands-free. Also make it possible to raise the inner seat by the window be able to raise the arm rest up to make more room for larger people to set more comfortably. I would also say other then that stop price gouging the airfare or nickel and diming everything. Not fair for people having to fly for emergencies and be paying for higher prices due to the season or holidays. Your making your money either way and the cost of flying is still going to be the same regardless if there's 100 people or 200 people.

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Was as expected. Crowed planes. Too many carryons delaying takeoff. But the ride only took an hour and saved me a lot of time SFO is a not a great airport.

Can not wait for seating change to reduce the amount of pre boards - it’s disheartening the abuse. And then then deplaning

The flight took off late, which really stressed me out for 5 hours worrying about my connection. We started boarding late... not sure why. There was a long line for preboard of folks that needed assistance or were in wheelchairs and not enough attendants to help. There was one lady who seemed to hold up regular boarding bc she needed to consolidate her 3 bags into 2. I'm wondering why we all had to wait for her and not board around her. Crew on board was great! So funny, so helpful and very nice. They reassured me my connecting flight would wait... and it dead. Seems it was waiting on several connecting flights, so it took off late too. Overall a very long trip but I'm glad I didn't have to spend the night in the Baltimore airport. And why are SW terminals so far from each other. I had to haul from the end of one terminal to the end of different terminal to catch my flight.

Best domestic airline in the USA. Excellent fares and two bags included with every fare (only carrier to do so).

The crew was fabulous, outstanding, friendly, attentive and just great, really made my flight one of the best I've ever had, thank you southwest crew flight #474, from Los Angeles to San Francisco on April 2,2024

Delta is always late. Ruined our first day of a short vacation. Timing is important. We pay to stay on an itinerary

Seats were not bad enough and uncomfortable good legroom in the emergency exit row we were in, but we were forbidden to hold my grandson on my lap for a little while, and the stewardess passed us saying it was against regulations which makes little or no sense when you’re 36,000 feet. The food snacks were really bad. Tasteless tasted like wallpaper, but we’re supposed to be protein bars, and the announcements were all completely incoherent because of the noise of the airplane and the lowness and crackly nature of the PA system.. this was disgraceful. No one in our party could understand a word of what the captain or the flight attendant were saying —not a word! The landing was a little hairy in a pretty stiff crosswind -we bounced before the plane stabilized on the runway

First The flight got delayed because one of the crew members was late and we couldn’t board until she arrived. Then we all boarded and got held in the tarmac for another 30 min.

It was as good as it could be. Flying is not a pleasant experience these days.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

Baggage claim signs were not updated with my flight information, so I had to guess. The app wasn't updated either.

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

Boarded from a very small gate at LAX. Staff at gate had us line up, then waited 25 minutes to board without a word of explanation. Plane arrived on time then waited 20 minutes for a plane to vacate our gate. Majority of bags arrived after 15 minutes but it took an hour for a small number of remaining bags to be off-loaded despite my “priority” bag tag.

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

when you can say you don't remember being at any point upset during a flight, the airline is winning .

I had a great flight. Everything went smoothly and the flight arrived early.

The strangest business class layout, 2-4-2, with alternate rows facing backward.

I'm a person with a visual disability and I felt safe traveling on United Airlines. The flight attendants were very attentive and checked in on me to make sure that i was accommodated well. I had a connecting flight in Chicago and I liked the ease of boarding on and off the plane. There was no issues at all. I'm very pleased with my flight experience.

Wheelchair assistance from the United Club was terrible. No chair came when it was scheduled. There was no one at the counter upstairs to call for one. I had to hobble to the entrance to get someone to call for the chair. Waited for 10 more minutes. Got to the gate halfway through boarding. I was in Business Class. Flight attendants never asked if you wanted anything. Had to call for a glass of water. The food was fine.

My seat had a worn out cushion, which made it a bit uncomfortable. Other than that, the flight was excellent.

My luggage never made it, I booked business class only to find out I’m sitting in the back. Very disappointed with the reservation

The boarding and fllight were good. The reason for the ok rating was the long walk to get to the transport to finally get to the gate.

The gate experience at LAX was abysmal (same for the arrival experience two days prior). Despite the LAX -> SAT schedule of two flights daily, our departure gate was at a smaller hub that we had to be bussed to from Terminal 4. Fortunately, I arrived at LAX extra early and had time to spare, but if I had not known, I might have missed my flight. I looked at the LAX airport map in the AA app and there was no indication of the additional boarding process. Lastly the gate area we were bussed to was crowded with limited food and beverage options. On flight, the fight attendant was hospitable and attentive, the flight was smooth, and AA's free (and working) wifi for AA members were all on the positive side.

Our flight from JFK to Madrid was delayed. We had to go from one side of the Madrid airport (Terminal 4s to the far end of terminal 4 - Gate K98) to our gate in less than 30 minutes. Put passport control and security/baggage check and that’s very hard unless you’re Usain Bolt. I called Iberia Airlines and the telephone customer service told me that I was going to have to pay to re-book. Luckily the help desk in the airport (who was dealing with dozens of people from the same JFK-Madrid flight) did not charge us extra to reschedule to a flight 8 hours later. They also gave us a voucher for breakfast and lunch. Glad the actual person at the airport had some actual sense.

The flight from LA to Chicago was smooth and service was very good overall.

Was not able to watch most shows on the entertainment site. They would not load

Seats were very uncomfortable. I paid extra for a seat with more leg room, the seat was no different than a seat at the back of the plane. Flight attendant was rude.

I did not enjoy continuously being lied to about the amount of time we would circle Chicago before deciding to redirect to Milwaukee. Then the amount of time we would sit on the ground in Milwaukee waiting for gas, or to take off again. Or the amount of time it would then take to get to Chicago again, or sit on the runway waiting for a gate. The whole time continuously hopefully we would make our connecting flight that kept getting delayed as well. Only to scramble and miss it. Enough with the BS. Tell me the truth. "Sorry, things are backed up and your probably not going to make your flight. You should rebook on the next flight now rather than wait." You'll never hear those words from an airline. Speaking of which. If the flight has been redirected and/or is seriously delayed, how about making the WiFi free for everyone so they get to rebooking and reserving hotel rooms while still in the air. You've inconvenienced me already and now you want me to pay $20 for Internet so I can try to make other plans. Absolutely disgusting!

Nothing, flight was supposed to leave at 758 am. My flight didn’t leave until 430 pm. Spent the whole day at the airport.

It was awful ....my first time flying on it and I will NEVER fly it again ....everything about it was terrible .....most especially the flight attendants

Remind customers of the need to have passport or new ID for boarding.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

With frontier you get what you pay for. The flight was two hours late. It’s a tight fit for the number of people they bring but you get to where you’re going cheap. Sometimes that’s more important than a nifty drink and cool TV..

Everything you need to know for your flight from Los Angeles to Illinois

Information on your arrival and departure airports