$55 Find Cheap Flights from Arizona to Illinois

1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Good to know

Low season

January

High season

August

Cheapest flight

$55
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Las Vegas to St. Louis

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 $210.

  • What is the cheapest day to fly to Illinois?

    Based on KAYAK data, the cheapest day to fly to Illinois is Friday where round-trip tickets can be as cheap as $376. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $618 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 $284 on average. Morning departures are around 80% 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 $569.

  • What is the cheapest flight to Illinois?

    The cheapest ticket to Illinois from Arizona found in the last 72 hours was to Moline, at $128 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 $148.

  • 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 $388 (return) on average. On the other hand, the most expensive months are February and June, when the average cost of round-trip tickets is $1,017 and $683 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

  • How long is the flight to Illinois?

    An average nonstop flight from Arizona to Illinois takes 7h 12m, 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 50m.

  • What are the most popular destinations in Illinois?

    Based on KAYAK flight searches, the most popular destination is Chicago (89% of total searches to Illinois). The next most popular destinations are St. Louis (8%) and Moline (1%). Searches for flights to Peoria (1%), to Evansville (0%) and to Bloomington (0%) are also popular.

See more FAQs

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 4280 reviews
7.1Food
8.2Boarding
7.6Entertainment
8.0Comfort
8.6Crew
Airline reviews

Plz don't take away free bags and free seating

10.0 ExcellentAnonymous, Apr 2025DAL - FLL
Read more Southwest reviews

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

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.

The open seating makes passengers boarding ahead of you think they also have the right to the empty middle seat. Trumper next to me refused to move her laptop bag from my leg area. I did not make a fuss since it was a short flight.

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 plane was in Moline all night. Consequently, we assumed an on time departure at 8:15am. Unfortunately, and as is the normal case with United in Moline, we departed 2.5 hours late. When the crew came, it was discovered that there was very little heat in the plane. Seems this should have been checked hours before the crew arrived. Then when we boarded and the plane was to be de-iced, the United de-icing truck was not working! We awaited the American Airlines truck. All of this caused us to miss our connection in Chicago. My suggestion is never take United Airlines flight from Moline. We have been disappointed 80% of the time and have vowed to not take United again from Moline.

Flight was delayed two hours. No snacks and no tv screens. My bag got stuck in Chicago

The aircrew was solid, the flight was chill, I had no issues. The gate agent was not the best. I was trying to use a military bag upgrade to move my bag from under the seat to the overhead bins and he told me there’s no overhead bins on the plane, argued with me why booking put a military member in basic economy (I don’t really understand this) and made it an issue to even try to help me stating I’d have to call reservations to get a bag upgrade. When every other agent with United can add it at the gate, this man couldn’t be bothered.

They canceled our flight and left us stranded to figure it out

Everything was very good. Was able to change a make run flight leaving on direct earlier in the app -seamless!!! Well done

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.

Posted a 20minute delay but didn’t delay at all. Caused boarding issues and confusion. Also, didn’t release baggage. Took over an hour and 20 minutes to get luggage.

Flight was good, boarding was a breeze, flight attendants were friendly and professional. There was a medical issue with another passenger and the crew handled it in a calm and professional way.

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

Everything was on time, we arrived early, everything worked well.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

Seating was horrible. Small seats. Access to flight information and extras very iser unfriendly. Kept losing internet after paying for it. Staff in madison was as unprofessional and unhelpful.

Delayed due to no crew. On a major holiday travel day.

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

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Landing in terminal 2, but my luggage is terminal 3. We (and others) were looking for it in terminal 1. We probably missed the crew broadcast, but the communication could have been clearer for non native (or elderly) passengers.

I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!

Bag should not be so much money. This is how Frontier takes advantage of customers

The plane was comfortable. The time to board was way too slow and very unorganized! The crew was not as friendly as normally. The was not a single time that they offered water nor anything!!!

They switched my flight to Spirit, Never using Kayak again,

Book cheap flights from Arizona to Illinois

Recent round-trip flight deals

5/16Fri
nonstopSpirit Airlines
3h 40mLAS-ORD
5/20Tue
nonstopSpirit Airlines
4h 05mORD-LAS
$105
5/2Fri
nonstopFrontier
3h 26mLAS-STL
5/11Sun
nonstopFrontier
3h 46mSTL-LAS
$110
9/12Fri
nonstopAllegiant Air
3h 08mAZA-RFD
9/15Mon
nonstopAllegiant Air
3h 29mRFD-AZA
$141
10/11Sat
nonstopAllegiant Air
3h 10mAZA-RFD
10/17Fri
nonstopAllegiant Air
3h 31mRFD-AZA
$156
5/14Wed
nonstopAmerican Airlines
3h 30mPHX-ORD
5/21Wed
nonstopAmerican Airlines
3h 54mORD-PHX
$189
5/17Sat
nonstopAmerican Airlines
3h 28mPHX-ORD
5/18Sun
nonstopAmerican Airlines
3h 54mORD-PHX
$203
5/21Wed
nonstopUnited Airlines
3h 35mPHX-ORD
5/31Sat
nonstopUnited Airlines
3h 50mORD-PHX
$204
5/11Sun
nonstopSouthwest
3h 15mPHX-MDW
5/17Sat
nonstopSouthwest
3h 45mMDW-PHX
$206
5/16Fri
nonstopSouthwest
3h 20mPHX-MDW
5/17Sat
nonstopSouthwest
3h 45mMDW-PHX
$208
5/15Thu
nonstopUnited Airlines
3h 31mPHX-ORD
5/17Sat
nonstopUnited Airlines
4h 05mORD-PHX
$228

Search by stops

Search by airline

Search by price

Recent one-way flight deals

5/2Fri
nonstopFrontier
3h 26mLAS-STL
$55
5/19Mon
1 stop
13h 40mPHX-ORD
$63
5/17Sat
nonstopSouthwest
3h 35mLAS-MDW
$85
5/17Sat
nonstopUnited Airlines
3h 31mPHX-ORD
$90
5/20Tue
nonstopSouthwest
3h 20mPHX-MDW
$90
8/15Fri
nonstopAllegiant Air
3h 05mAZA-RFD
$99
5/7Wed
nonstopAmerican Airlines
3h 35mPHX-ORD
$100
6/2Mon
nonstopAllegiant Air
3h 05mAZA-RFD
$107
7/4Fri
nonstopUnited Airlines
3h 42mLAS-ORD
$108
6/9Mon
nonstopAmerican Airlines
3h 33mPHX-ORD
$114

Search by stops

Search by airline

Search by price

Last minute flights from Arizona to Illinois

Last minute flight, train and bus deals

4/22Tue
multi-stopFrontier
7h 02mLAS-STL
4/27Sun
nonstopFrontier
3h 44mSTL-LAS
$146
4/22Tue
multi-stopFrontier
12h 26mLAS-STL
4/27Sun
nonstopFrontier
3h 44mSTL-LAS
$147
4/20Sun
multi-stopFrontier
6h 07mLAS-STL
4/27Sun
nonstopFrontier
3h 44mSTL-LAS
$156
4/22Tue
nonstopAmerican Airlines
3h 26mPHX-ORD
4/30Wed
nonstopAmerican Airlines
4h 10mORD-PHX
$303
4/22Tue
nonstopAmerican Airlines
3h 26mPHX-ORD
4/30Wed
multi-stopAmerican Airlines
5h 36mORD-PHX
$353
4/22Tue
multi-stopSouthwest
12h 45mPHX-ORD
4/24Thu
multi-stopSouthwest
9h 05mORD-PHX
$428
4/21Mon
nonstopUnited Airlines
3h 27mPHX-ORD
4/26Sat
nonstopUnited Airlines
4h 06mORD-PHX
$447
4/22Tue
multi-stopSouthwest
12h 45mPHX-ORD
4/24Thu
multi-stopSouthwest
11h 40mORD-PHX
$473
4/21Mon
nonstopUnited Airlines
3h 27mPHX-ORD
4/26Sat
multi-stopUnited Airlines
9h 57mORD-PHX
$488
4/18Fri
nonstopAllegiant Air
3h 06mAZA-RFD
4/21Mon
nonstopAllegiant Air
3h 35mRFD-AZA
$534

Search by stops

Search by airline

Search by price

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.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.