$42 Find Cheap Flights from Arizona to Illinois

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Low seasonJanuary
High seasonJuly
Cheapest flight$42
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Las Vegas to Chicago O'Hare Airport

FAQs for booking flights from Arizona to Illinois

  • How does KAYAK find such low prices on flights from Arizona 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 Arizona to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Arizona 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 Arizona 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 Arizona 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 Arizona 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 Arizona to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which is the cheapest airport to fly into in Illinois?

    Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Illinois is Chicago Midway Airport (MDW), with an average flight price of $220.

  • What is the cheapest day to fly to Illinois?

    Based on KAYAK data, the cheapest day to fly to Illinois is Thursday where round-trip tickets can be as cheap as $358. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $583 on average.

  • 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 $290 on average. Morning departures are around 62% 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 $560.

  • What is the cheapest flight to Illinois?

    The cheapest ticket to Illinois from Arizona found in the last 72 hours was to Peoria, at $79 round-trip. The most popular route is Phoenix-Mesa Gateway Airport (AZA) to Chicago Greater Rockford Airport (RFD) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $168.

  • What is the cheapest month to fly from Arizona to Illinois?

    The cheapest month for flights from Arizona to Illinois is April, when tickets cost $431 (return) on average. On the other hand, the most expensive months are February and November, when the average cost of round-trip tickets is $1,017 and $620 respectively.

  • How far in advance should I book a flight from Arizona to Illinois?

    To get a below average price on the flight from Arizona to Illinois, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

  • How long is the flight to Illinois?

    An average nonstop flight from Arizona to Illinois takes 6h 34m, covering a distance of 1373 miles. The shortest route is Phoenix Sky Harbor Intl Airport (PHX) to St. Louis (STL) with an average flight time of 2h 55m.

  • What are the most popular destinations in Illinois?

    Based on KAYAK flight searches, the most popular destination is Chicago (92% of total searches to Illinois). The next most popular destinations are St. Louis (6%) and Moline (1%). Searches for flights to Evansville (0%), to Peoria (0%) and to Bloomington (0%) are also popular.

Reviews of the top 5 airlines serving from Arizona to Illinois

 
Need help choosing which airline to fly with from Arizona 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 4273 reviews
8.0Comfort
8.6Crew
7.0Food
8.2Boarding
7.6Entertainment
Airline reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

4.0 OkayTraci, Jun 2025OAK - SEA
Read more Southwest reviews

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

Flight was awfully bumpy and landing was a bit jolting. I was in the restroom when snacks and drinks were served and was not asked if i wanted any. I had to ask for water finally.

Delayed 4 hours due to mechanical issues. No mention of compensation for being over 3 hours late

I like that it was on time and the staff was friendly.

At time of arrival to the airport, there were plenty of kiosks open/running for checking and baggage tags. While waiting to drop my bag, a team member was checking everyone's IDs against their baggage tag to verify a match/compliance to save additional time when dropping it at the front of the line. This was actually a really big time saver and greatly appreciated! Once boarding was starting, the team member had a clear and audible voice with their announcements, with direct (yet friendly) instructions for the boarding process. Once actually boarding, the flight crew gave genuine greetings while walking on board and were very nice and attentive during the flight. The take-off and landing were one of the smoothest I've had in MANY of years. Kudos to the pilots! I literally cannot remember the last time a had such a smooth landing :D

No space for our carryon and needed to check at plane before boarding !

I had a front row middle. I am not a big person and I barely fit in between that seat! No place to put my arms, even though the guys on each side were not taking over the arm rests. It felt like a frontier flight (if that tells you everything )

Flight was ok. Boarding wasn’t fun. Flights were delayed by 12 minutes on each leg.

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

I liked that the flight was nonstop from ORD to CIU for $200 round trip.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

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.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

Overall poor for me I paid extra for seats with leg room and my regional flights exit row seats have less leg room then the others that's money that could have been saved and on my final flight home the flights air was not operating it was unbearably hot in the cabin I will be contacting United and filing a DOT complaint

There's just no way to sit fully upright and comfortably in these seats. There needs to be 2 more inches of room, and that's not something that only one person on the flight needs - the whole flight needs 2 more inches of room. If that means you sell 6 less seats, so be it. It's too close for anyone. Forcing people to pay for "premium" economy just to get "barely enough space to breathe" isn't really an answer to that.

The crew were very nice. The Chocolate is good and v there’s no entertainment. Thanks

The crew were very nice. I would have appreciated a pillow for comfort. I had a special meal that was sloppy, but the salad was great. Thanks

The flight was fine and the crew awesome. The problem is ORD and AA. Computers went down, ORD fell apart and a 40 min flight turned into a 3 hour trip. Guess the answer is to not try and fly to ORD after noon. But, as I said, crew was awesome and did everything they could to lesson the flight time.

The flight was fine but the 8 hour delay in Chicago was awful - 5 gate changes and repeated delays without an explanation. No vouchers. Nothing.

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Not sure the logic of the boarding in Groups. I was loaded first on the aisle. Then the guy in the middle. Then the guy by the window. Constantly holding up the other people boarding behind them with us blocking the aisle and this happened in most of the other rows

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

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

Crew professional. Easy bag drop off. On time. Good entertainment.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Per usual, flight status, staff courtesy and professionalism were excellent

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

They boarded passengers that sat in the back of the plane first, making boarding very efficient.

I didn't even take this flight. My plans changed and I couldn't get ahold of customer service and the website kept breaking down during the attempt to change the flight. I wound up taking another airline entirely and eating the cost.

The worst flying experience ever 3 delays. No accommodations. Had to deboard the plane after being delayed.

My flight was delayed by two hours which made it so that I would miss my layover flight. I stood in line for customer service for over an hour and when I reached the agent she told me to scan a QR code and it'll give me options. I wasn't offered any help, guidance or compensation, only told that I have options but that I had to figure it all out myself. I was refunded part of the trip and had to buy an expensive same day ticket from another airline in order to get home. I will never fly Frontier again.

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

Very bad! No good service delayed my second connection flight

The confirmation # CK8GNW and my name was not recognized/in Frontier system. I was able to check in on Frintier app so i went to the Frontier ticket agent, at time they told me that my name/ confirmation did not show up as a purchased ticket. I had to purchase a new ticket that cost $289.00 one way.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

Frontier is terrible. Paid for exit row, not given exit row, refused to refund fee.

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

We had to wait in line over an hour just to check our bags. It's a good thing we were so early to the airport. Only one clerk was working and the line was around the corner and down the hall. No good. I felt bad for her. Not sure how she kept her sanity with all the upset people. Then we get to our gate and there is no seating. Everyone was standing. Then I realize it is not a gate at all, we still have to be shuttled to our airplane. Ugh. Then we were late taking off and missed a window of opportunity before the airport runways were shut down for some reason. (not frontier's fault the runway shut down.) The seats on the airline are crammed and there is no cushion. Never had a tighter seating arrangement while flying. My 6' 4" husband was absolutely miserable the whole time with knees digging in to the seat in front of him. You think you are getting a good deal on a ticket, and then wham! I had to pay 75 dollars for our checked bags and 75 dollars for a carry on. No other airline does that!!! And also, there is a 40 pound weight limit on checked bags... Would have been cheaper flying with another airline, and I would have at least gotten a snack and drink. Was thankful for the tiny cup of water at least.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

They canceled flight. Hard to believe there was even a plane incoming for us to get on

Book cheap flights from Arizona to Illinois

Recent round-trip flight deals

7/21Mon
nonstopSpirit Airlines
3h 29mLAS-ORD
7/29Tue
nonstopSpirit Airlines
4h 01mORD-LAS
$91
8/15Fri
1 stopFrontier
10h 22mLAS-ORD
8/17Sun
nonstopFrontier
4h 09mORD-LAS
$92
8/4Mon
nonstopAllegiant Air
3h 10mAZA-RFD
8/8Fri
nonstopAllegiant Air
3h 22mRFD-AZA
$115
7/30Wed
nonstopAllegiant Air
3h 10mAZA-RFD
8/4Mon
nonstopAllegiant Air
3h 22mRFD-AZA
$134
7/24Thu
nonstopSouthwest
3h 30mLAS-MDW
7/30Wed
nonstopSouthwest
3h 55mMDW-LAS
$169
8/24Sun
nonstopSouthwest
3h 30mLAS-MDW
9/2Tue
nonstopSouthwest
3h 45mMDW-LAS
$173
7/29Tue
1 stopAmerican Airlines
8h 01mPHX-PIA
8/6Wed
1 stopAmerican Airlines
5h 38mPIA-PHX
$251
8/7Thu
nonstopAmerican Airlines
3h 37mTUS-ORD
8/12Tue
nonstopAmerican Airlines
3h 42mORD-TUS
$257
9/18Thu
1 stopUnited Airlines
5h 43mTUS-ORD
9/22Mon
nonstopUnited Airlines
3h 54mORD-TUS
$267
8/6Wed
1 stopUnited Airlines
6h 00mTUS-ORD
8/9Sat
nonstopUnited Airlines
4h 06mORD-TUS
$273

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Recent one-way flight deals

7/28Mon
nonstopSpirit Airlines
3h 29mLAS-ORD
$42
8/25Mon
1 stopFrontier
7h 27mLAS-ORD
$43
9/26Fri
nonstopAllegiant Air
3h 30mLAS-MDW
$54
9/10Wed
nonstopAllegiant Air
3h 08mAZA-RFD
$55
10/14Tue
nonstopUnited Airlines
3h 48mLAS-ORD
$80
10/14Tue
nonstopSouthwest
3h 35mLAS-MDW
$80
7/22Tue
nonstopAmerican Airlines
4h 05mLAS-ORD
$90
7/24Thu
nonstopSouthwest
3h 35mLAS-MDW
$90
11/2Sun
nonstopAmerican Airlines
3h 36mLAS-ORD
$94
8/6Wed
nonstopUnited Airlines
3h 41mPHX-ORD
$100

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Last minute flights from Arizona to Illinois

Last minute flight, train and bus deals

7/4Fri
multi-stopFrontier
10h 12mLAS-ORD
7/5Sat
multi-stopFrontier
6h 02mORD-LAS
$142
7/4Fri
multi-stopFrontier
10h 12mLAS-ORD
7/14Mon
nonstopFrontier
4h 09mORD-LAS
$154
7/6Sun
nonstopSouthwest
3h 35mLAS-MDW
7/13Sun
nonstopSouthwest
3h 55mMDW-LAS
$343
7/5Sat
nonstopAmerican Airlines
3h 05mPHX-STL
7/9Wed
nonstopAmerican Airlines
3h 26mSTL-PHX
$347
7/4Fri
multi-stopAmerican Airlines
6h 40mPHX-STL
7/8Tue
nonstopAmerican Airlines
3h 15mSTL-PHX
$357
7/4Fri
multi-stopUnited Airlines
7h 47mPHX-STL
7/9Wed
multi-stopUnited Airlines
5h 31mSTL-PHX
$397
7/4Fri
nonstopAllegiant Air
3h 10mAZA-RFD
7/11Fri
nonstopAllegiant Air
3h 22mRFD-AZA
$397
7/4Fri
nonstopAllegiant Air
3h 10mAZA-RFD
7/9Wed
nonstopAllegiant Air
3h 22mRFD-AZA
$424
7/2Wed
multi-stopUnited Airlines
8h 24mPHX-STL
7/5Sat
multi-stopUnited Airlines
6h 25mSTL-PHX
$447
7/6Sun
multi-stopSouthwest
4h 35mLAS-MDW
7/13Sun
nonstopSouthwest
3h 55mMDW-LAS
$459

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Everything you need to know for your flight to Illinois

Cabin class types available on flights to Arizona

Cabin classes available on flights to Arizona. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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