$66 Find Cheap Flights from Los Angeles to Illinois

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 1/17. 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.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Los Angeles to Illinois.
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Flight Deals

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$139
Moline
Moline1 stop$309
Peoria
Peoria1 stop$287
Bloomington
Bloomington1 stop$463
Champaign
Champaign1 stop$439
Springfield
Springfield1 stop$331
St. Louis
St. Louis2 stops$211
Decatur
Decatur1 stop$394
Chicago
Chicago1 stop$139
Moline
Moline1 stop$309
Peoria
Peoria1 stop$287
Bloomington
Bloomington1 stop$463
Champaign
Champaign1 stop$439
Springfield
Springfield1 stop$331
St. Louis
St. Louis2 stops$211
Decatur
Decatur1 stop$394

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

Fri, Jan 9 - Sat, Jan 17
Multiple Airlines Logo
7:07 pm - 2:17 pm
LAX
-
ORD
17h 10m1 stop
Multiple Airlines Logo
6:02 pm - 7:59 am
ORD
-
LAX
15h 57m1 stop
$139Multiple Airlines
Mon, Feb 9 - Tue, Feb 10
Frontier Logo
12:46 pm - 10:46 pm
LAX
-
ORD
8h 00m1 stop
Frontier Logo
8:10 am - 3:45 pm
ORD
-
LAX
9h 35m1 stop
$140Frontier
Sat, Jan 17 - Tue, Jan 27
Multiple Airlines Logo
10:45 pm - 12:08 pm
LAX
-
ORD
11h 23m1 stop
Multiple Airlines Logo
2:18 pm - 6:02 pm
ORD
-
LAX
29h 44m1 stop
$141Multiple Airlines
Thu, Jan 8 - Mon, Jan 19
Multiple Airlines Logo
8:31 pm - 2:57 pm
LAX
-
ORD
16h 26m1 stop
Multiple Airlines Logo
9:59 pm - 8:22 am
ORD
-
LAX
12h 23m1 stop
$142Multiple Airlines
Thu, Jan 8 - Sun, Jan 11
American Airlines Logo
11:05 am - 11:24 pm
LAX
-
PIA
10h 19m1 stop
American Airlines Logo
7:00 am - 2:50 pm
PIA
-
LAX
9h 50m1 stop
$309American Airlines
Wed, Jan 14 - Wed, Jan 28
Delta Logo
6:00 am - 4:26 pm
LAX
-
MLI
8h 26m1 stop
Delta Logo
5:11 pm - 11:51 pm
MLI
-
LAX
8h 40m1 stop
$309Delta
Thu, Jan 8 - Sun, Jan 11
American Airlines Logo
6:38 am - 4:32 pm
LAX
-
PIA
7h 54m2 stops
American Airlines Logo
7:00 am - 2:50 pm
PIA
-
LAX
9h 50m1 stop
$314American Airlines
Sat, Jan 17 - Tue, Jan 20
United Airlines Logo
1:04 pm - 8:34 pm
LAX
-
MLI
5h 30m1 stop
United Airlines Logo
5:29 pm - 10:57 pm
MLI
-
LAX
7h 28m1 stop
$367United Airlines
Sat, Feb 28 - Sun, Apr 12
United Airlines Logo
10:55 pm - 8:52 am
LAX
-
DEC
7h 57m1 stop
United Airlines Logo
6:55 pm - 11:51 pm
DEC
-
LAX
6h 56m1 stop
$394United Airlines
Fri, Feb 6 - Sun, Feb 8
Delta Logo
12:20 pm - 10:33 pm
LAX
-
MLI
8h 13m1 stop
Delta Logo
5:51 am - 1:25 pm
MLI
-
LAX
9h 34m1 stop
$394Delta
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 January.

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 72 hours was to Chicago, at $155 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 72 hours was $155.

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 $357, 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 $242 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $368 and $313 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 Thursday and avoid Sundays if you are looking for the best rates. For your return to Los Angeles, you’ll find the best rates on Fridays 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 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$66
Best time to beat the crowds with an average 27% drop in price.
Flight from Los Angeles to St. Louis

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.

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

    The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $272 on average. Morning departures are around 47% 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 $453.

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 $159 one-way - $310 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.
7.9
SouthwestOverall score based on 4250 reviews
7.5Entertainment
7.0Food
8.0Comfort
8.6Crew
8.1Boarding
Airline reviews

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

8.0 ExcellentRussell, Dec 2025
SAN - OAK
Read more Southwest reviews

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

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

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

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

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Sacrament staff are always polite and helpful. Airport is easy to maneuver and boarding is straightforward.

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

As always, the entire Southwest experience was wonderful, from online booking to flight to baggage retrieval. Very grateful.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

The food was the worst I’ve had on any flight I’ve ever been on.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

The first flight was better in terms of the aircraft.

The gate was too far away for the connecting flight

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was flawless and we even arrived between 20 and 25 minutes early!

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

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

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Almost a 6 hour flight and the only food option is a cheese plate… and chips. Also how is it there are no options for texting on American. I’ll be going back to delta and united.

Bad food, small seats that didn’t recline. I thought I was buying a quantas ticket so I feel like I got scammed

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

No free snacks or drinks. Freezing. Uncomfortable. No plugs or entertainment. If you fly to LA the make you change terminals with a slow bus. Awful trip that took forever. Terrible airline- maybe the worst I’ve ever flown.

Crew are always very angry and dismissive like they seem they are being forced to work. In addition, there was a long line for the bathrooms, and only one was allowed to be used. No reason was given for only one bathroom being available; apparently, the stewardess was more interested in using the jumpseat instead of allowing the customers to use the bathroom.

Vegas is such a quick flight that amenities aren’t the important part, in my opinion. Just get me there efficiently and safely, and that’s exactly what they did!

The flight was severely delayed due to the missing flight attendants.

Flight was cancelled without warning close to flight date. Stuck witha credit has to buy a new ticket from another airline in either to get to location. Email cancelling was lost in mail.

No frills - because you get what you pay for. The crew was amazing!! I had plenty of room to spread out because the flight was half full. Which made it easy to sleep.

Dear All, I have harassment and accident with the flight attendant . This is my phone to talk 8168073567, please, leave phone message . Regards Emily,

Flight was on time but the amount of noise from several children and the kicking of my seat the entire flight was overwhelming.

Had a issue with catching flight due to airline, was unable to board flight

First off, i received an e-mail to allow me to check in for our flight. I folllowed the link, when it came to the seat selection, I was unable to select any "free" seats ( meaning without any additional charge) because everything was " unavailable". My Husband and I were ttavelling with our 3 children hence, i wanted to be assured that we were all seated next to each other. I tried 3 times and everytime I click the selection it said " error loading". What the system wants is for me to buy the seats ( anywhere from $25 to $50 dollars each passenger) like I did on our flight bound to L.A. I called customer service and the guy was unhelpful all he kept repeating was to come really early at the airport and we will be assigned seats there. Imagine my anxiety!!! Spirit says they are a budget airline but they are actually the opposite!! And just before our flight, the flight attendant KEPT announcing/ selling the seats that were not purchased for a cheaper price!! Like it was a bidding/ bargaining game! This was our first and last time to fly Spirit.

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.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

We were delayed three times ,and that destroyed my plans, and reservations

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

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 crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

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.

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

Information on your arrival and departure airports