$34 Find Cheap Flights from Arizona 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 Arizona to Illinois departing on 1/18. 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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Good to know

Low season

January

High season

July

Cheapest flight

$34
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Phoenix Sky Harbor Airport 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 to Illinois from Arizona 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 to Illinois with an airline and back to Arizona 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 to Illinois from Arizona up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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.
8.1
SouthwestOverall score based on 4821 reviews
8.7Crew
7.2Food
8.1Comfort
7.7Entertainment
8.2Boarding
Airline reviews

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

2.0 MediocrePramod, Oct 2024PHX - ABQ
Read more Southwest reviews

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.

The flight was semi-full with enough space to spread out. Wonderful, smooth, and quick flight.

It went well. We even got in 15 earlier than scheduled.

Third straight Southwest flight that has been delayed. I'll be choosing a different airline from here on out.

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

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

As usual, United scheduling is completely misleading. A 54-minute layover at O’Hare is too short to make a lot of connections, especially since the flight landed “on time” but had to wait on the taxiway 15 minutes for a gate to open up. Then it takes another 10 minutes to exit the plane before one can run to another concourse to catch a connecting flight.

The seats on the aircraft are like sitting in a rock. During the boarding process they recognize Active Duty Military, why don’t they recognize Retired Military. I’ve always preferred Delta, this flight confirmed why I still prefer Delta.

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

The staff was very friendly. The seats seemed quite small. Overall the flight was pleasant.

It was literally one of the worst travel experiences ever. My flight got delayed by over an hour and there was no communication of this from the gate staff. I realized it by checking the screen periodically. Once on board the flight attendants continued to serve alcohol to a man who was clearly already drunk and that was making a bunch of commotion. Never again will I fly United!

Charging and entertainment didn't work. The meal was horrible. They only came by with the drink cart one time for the 8 hour flight. They did come by with water a couple times.

Exceptional, I’d like to specifically recognize Robert for his outstanding customer service. He is professional, pleasant, and personable.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight from Buffalo to Chicago was on an older and smaller plane. Seating was tight. Looking closely at the interior of the aircraft there were definitely signs of aging and wear.

The flight encountered a delay exceeding 4 hours. The food voucher issued was valued at $12, insufficient to cover our meal expenses. Consequently, I was unable to take my medication, leading to a drop in blood sugar levels and exacerbating my anxiety.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

3hour delay In the last 3 months i had 3 flights and 2 of these had a more than 2:40 hrs delayed

My initial flight to ORD was extended without reason. We circled the airport a few time and then drove on the ground for at least 20 minutes. These kinds of delays are annoying but somewhat expected… it would be nice if the crew would make an announcement to give updates on how long we could expect to be delayed.

The flight was uneventful. What was a problem was I was delayed getting home one entire day because the flight from Sacramento was delayed. That made getting to my connecting flight impossible. I had to stay another night at the hotel and incur that expense as a result.

This flight was fine but had no time to breathe as the connection was late from Sea to ORD.. Super stressful. If we checked bags, the trip would have been very distressed.

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’ve now flown Spirit a few times and while the general perception of Spirit I feel is poor, I’ve had a great experience each time. They do charge extra for everything but you should know that going in

Horrible. Take off was delayed by an hour. They were letting people board d the plane right before takeoff. I was delayed an hour when I arrived and late for my meeting. Spirit is NEVER on time.

The flight landed with a delay and we had to wait almost an hour to be off boarded. So typical of spirit.

The gate employees and the flight crew were friendly and professional. Afterboarding we waited 20 minutes for another flight; a complimentary beverage would have ben appreciated for the inconvenience.

You get what you pay for, but those tickets weren't cheap, so I expected better, but Spirit is just one of those airlines.

Cancelled the return flight moments before boarding, horrible customer service in assisting with any rebooking. Never again will I fly Spirit.

Flight got diwngraded last minute and left us stranded. I was told I’ll be given credit for my luggage and seat upgrades but haven’t got anything yet

When we landed, they kept us on the plane for almost 25 minutes. Could do better.

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

Delayed each time on a round trip with no significant weather interference. Updates to flight times came after the fact. 30 min behind in boarding and board and phone still show an on time departure. Some mysterious extra 300 miles that came so surprising they had to fuel while we were already on board?

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

terrible cascading delays and unhelpful customer service. uncomfortable plane. crew was great, however!

I ended up paying $70+ dollars to for a carryon because the website is confusing and misleading. I now realize I did not need to pay that. I request a refund. I will pay extra to other airlines and not fly Frontier again.

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..

Charges unexpected. For seat that didnt recline. Please reverse extra seat and carryon charge. Bad business that is a bait and switch.

Although we received an email from Kayak AND the airline, turns out we were not on Frontier’s manifest for the flight. We had to purchase tickets at the gate. Not sure where this transaction fell apart, but it did. We are now disputing the charges for the SLC to PDX flight originally booked through Kayak.

We had an awful experience getting our bags checked in. Frontier’s check in on the app manipulated us into buying the business package because that was the only option available for a checked bag which included two checked bags per person which we did not need. Upon arriving to the airport, we stood in line for what seemed like forever at the baggage check in and there was no one available at the counter. We were first in line and we were afraid we were going to miss our flight due to the baggage attendant being late. After realizing there were a lot of other people waiting at the baggage check in and no one available. I reached out to Frontier and could not get any customer service so I had to call the airport to page the baggage attendant to send someone to the counter to check in our bags before we were able to go through security , I finally spoke to the attendant at the counter and explained to her that we had to pay for two checked bags person a total of six bags when we only had a total of three bags between three people she said to reach out to Frontier and they would issue a refund for the three bags that we paid for and did not need. I reached out to Frontier which I was not able to reach anybody by phone so I had to go through their automated chat feature, which sent me around in circles until I finally reached a representative to assist me. I explained to them what happened and they explained that they were not able to assist me. I continued to push the issue with them as this was very frustrating and they finally put in a customer service ticket where we were issued a flight credit and we were so disappointed because after this experience, we NEVER want to fly Frontier again, and we do not want a credit that we will not use. Frontier charged us almost $500 for us to check three bags which is absolutely absurd! The customer service agents were not able to offer anything else other than a flight credit and I do not feel like my frustrations were truly heard , we will never use Frontier Airlines again ! Truly Theft by Manipulation! They should be ashamed!

I couldn’t check in because the app didn’t work. It took 3 Frontier employees at the counter to get me checked in. Flight left 3 hours after departure time

Book cheap flights from Arizona to Illinois

Recent round-trip flight deals

1/18Sat
nonstopFrontier
3h 35mPHX-ORD
1/25Sat
nonstopFrontier
4h 13mORD-PHX
$67
1/25Sat
nonstopFrontier
3h 35mPHX-ORD
2/1Sat
nonstopFrontier
4h 13mORD-PHX
$68
1/24Fri
1 stopSpirit Airlines
29h 14mLAS-ORD
1/26Sun
nonstopSpirit Airlines
4h 06mORD-LAS
$99
1/14Tue
nonstopSpirit Airlines
3h 40mLAS-ORD
1/26Sun
nonstopSpirit Airlines
4h 06mORD-LAS
$107
1/14Tue
nonstopUnited Airlines
3h 30mPHX-ORD
1/22Wed
nonstopUnited Airlines
4h 05mORD-PHX
$189
1/8Wed
nonstopUnited Airlines
3h 32mPHX-ORD
1/22Wed
1 stopUnited Airlines
5h 37mORD-PHX
$194
1/23Thu
nonstopAmerican Airlines
3h 26mPHX-ORD
2/1Sat
nonstopAmerican Airlines
4h 07mORD-PHX
$197
1/18Sat
nonstopSouthwest
3h 10mPHX-MDW
1/21Tue
nonstopSouthwest
4h 05mMDW-PHX
$199
1/14Tue
nonstopSouthwest
3h 30mLAS-MDW
1/26Sun
nonstopSouthwest
4h 05mMDW-LAS
$199
1/22Wed
nonstopAmerican Airlines
3h 26mPHX-ORD
1/31Fri
nonstopAmerican Airlines
3h 51mORD-PHX
$217

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Recent one-way flight deals

1/18Sat
nonstopFrontier
3h 35mPHX-ORD
$34
2/12Wed
nonstopFrontier
3h 29mPHX-ORD
$36
1/18Sat
nonstopSpirit Airlines
3h 40mLAS-ORD
$50
1/11Sat
nonstopSpirit Airlines
3h 44mLAS-ORD
$52
2/18Tue
1 stopAmerican Airlines
4h 49mLAS-STL
$68
2/11Tue
nonstopUnited Airlines
3h 37mLAS-ORD
$70
1/29Wed
nonstopSouthwest
3h 30mLAS-MDW
$70
1/17Fri
nonstopAmerican Airlines
3h 26mPHX-ORD
$89
1/18Sat
nonstopSouthwest
3h 10mPHX-MDW
$89
1/28Tue
nonstopUnited Airlines
3h 32mPHX-ORD
$90

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Last minute flights from Arizona to Illinois

Last minute flight, train and bus deals

12/24Tue
multi-stopFrontier
20h 47mLAS-ORD
1/2Thu
multi-stopFrontier
14h 31mORD-LAS
$138
12/24Tue
multi-stopFrontier
20h 47mLAS-ORD
1/3Fri
multi-stopFrontier
19h 34mORD-LAS
$158
12/25Wed
multi-stopSpirit Airlines
6h 18mPHX-ORD
1/29Wed
multi-stopSpirit Airlines
22h 22mORD-PHX
$259
12/24Tue
nonstopSpirit Airlines
3h 32mLAS-ORD
1/5Sun
nonstopSpirit Airlines
4h 05mORD-LAS
$268
12/25Wed
nonstopSouthwest
2h 50mPHX-STL
1/2Thu
nonstopSouthwest
3h 25mSTL-PHX
$457
12/25Wed
multi-stopUnited Airlines
8h 19mPHX-MLI
12/30Mon
multi-stopUnited Airlines
7h 36mMLI-PHX
$458
12/25Wed
multi-stopSouthwest
4h 30mPHX-STL
1/2Thu
nonstopSouthwest
3h 25mSTL-PHX
$462
12/24Tue
multi-stopUnited Airlines
6h 57mLAS-STL
12/31Tue
multi-stopUnited Airlines
5h 59mSTL-LAS
$488
12/22Sun
nonstopAmerican Airlines
3h 06mPHX-STL
1/1Wed
nonstopAmerican Airlines
3h 31mSTL-PHX
$663
12/22Sun
nonstopAmerican Airlines
3h 02mPHX-STL
12/31Tue
multi-stopAmerican Airlines
6h 36mSTL-PHX
$673

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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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