Find flights
Deals
When to book
FAQs & Tips
Airlines

Find cheap flights from Phoenix to Illinois from $50

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Illinois departing on 6/11. 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
0 bags
Thu 6/27
Thu 7/4

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

In the last 7 days travelers have searched 42,816,550 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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

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

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

Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicagononstop$114
Moline
Moline1 stop$442
Peoria
Peoria2 stops$308
Bloomington
Bloomington1 stop$309
Champaign
Champaign1 stop$380
Springfield
Springfield1 stop$471
Decatur
Decatur1 stop$367
St. Louis
St. Louisnonstop$118

Good to know

Low season

January

High season

June

Cheapest flight

$50
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Phoenix Sky Harbor Airport to Chicago O'Hare Airport

FAQs - booking Illinois flights

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Phoenix 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 Phoenix 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 Phoenix with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Phoenix 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 Phoenix up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Phoenix to the following destinations at these prices or less: Chicago $145 one-way - $296 round-trip
  • Morning departure is around 10% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Phoenix to Illinois

 
Need help choosing which airline to fly with from Phoenix 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
DeltaOverall score based on 10502 reviews
8.2Boarding
7.4Food
7.9Comfort
8.6Crew
8.0Entertainment
Airline reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

10.0 ExcellentMichael, May 2024SJC - ATL
Read more about Delta reviews

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

Paid premium for Delta only to be on safe but tired old 767 with ancient cabin in mediocre condition. Poor wifi and horrible inflight entertainment. Hardly a premium experience. Should have flown SW and had fun flight crew and no pretense

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

Rated entertainment as Mediocre as there were major problems with the Infotainment system that took probably a half hour for them to fix.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

They were an hour late and they didn’t have my wheelchair for me

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

It got me where I needed it to; not much more. It had no competition so that was why I chose it.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

The Palm Springs to Chicago O’Hare was on Time and Palm Springs airport is easier navigate. As our connection was only an approximately 50 minutes, we asked staff for insights for the Chicago airport in terms of transferring into the other terminal from which our flight left, and they were unhelpful. However, the United App was very helpful in terms of notifications and even providing directions. The Chicago to Detroit flight was significantly delayed which we all know does happen. However, there were very few updates or notifications as to why this was happening when we would actually arrive. It took nearly 30 minutes for bags to make it to baggage claim. We arrived nearly 1 hour late on a 40 minute flight.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

Re-checking our bags, the workers were not able to help us with boarding passes for the flight, told us to wait, then ignored us while they helped many other passengers. Until I got rude, they would have left us standing there, and even then they were very curt and dismissive in telling us where to get boarding passes printed. We made it to the gate just as they were starting to board passengers. It was just rude customer service.

While I received notice that AA 478 was delayed, the flight departed PHX and arrived PHL more than two hours late. The first class cabin service was mediocre; there were no pre-departure beverages offered; there were no warm mixed nuts served with cocktails; there was no personal greeting to me as an Executive Platinum member by the first class flight attendant. While the flight operated safely, its arrival at 0219 in the morning in PHL ended a very long day. I do not feel that American provided first class service.

Absolutely filthy flight and not equipped for a trans US

Turn on the heat. Flight was way too cold from Arizona to Chicago.

Poor on time performance. Flight was delayed due to a lightbulb. No updates from the pilot. Plane was dirty and hot, AC didn't work well.

Being back games on the in-flight entertainment. Also your flight attendants need a break, raise, or overall attitude adjustment.

My experience was pretty frustrating because the first leg of my flight on United (though booked through Air Canada) was delayed causing me to miss my connecting flight on Air Canada. This could have been an easy solve as there was a direct flight later that morning via Air Canada that they easily could have put me on which would have only gotten me to my destination 2 1/2 hours later but because United and Air Canada don’t seem to have good communication they gave me the run around both telling me to talk with the other which I did three times to no avail. I ended up taking the delayed flight and getting on a new connecting flight which ended up getting me to my destination 6 hours later and I missed the event I was planning to go to this evening.

I was appalled to have to pay for just a regular seat when I went to book 24 hrs before my flight! Because it was only an hour flight I didn’t choose a seat from Grand Junction to Denver, but I did for Toronto and had to pay just to choose a regular available seat! In my 60+ years of flying this was the first time I have heard of this. Also, allowing people to bring on “huge “ suitcases, not carry on size, but much bigger, and then a large pack pack stuffed. So they take up all the room in the overhead bins and if we are later boarding, there is no room so we have to check our small carry on. I have already paid for and checked in one bag! I certainly will not choose to fly with United again unless it is the “only” airline available!

Ontime boarding. Almost 1 hour take off delay. We could have boarded slightly later since the pilots were in traffic

Flight was delayed, I had to put my luggage all the way in the back! They served only a beverage no snack on the way in Air Canada, definitely not a good first impression.

Fresh fuit or veg snacks would be so great, but there are two good restaurants in Denver airport. Try Etais UDIS or Freshens DIA for nutritious delicious pita sandwiches/ donairs and crepes in Freshens.

Crowded plane but it flew on time and had friendly staff

This was the first AC flight in a long time that we experienced no delays or frustrations. The gate attendant was extremely polite and accommodating to my husband who has Parkinson’s disease which made boarding extremely stress free. Flight departed ON TIME and was a smooth ride. If only all my AC experiences could be like this.

The Air Canada agent was very helpful helping with my luggage and cat carrier when I went there instead of United.

United force you to download their App to do the check-in.

Both flights to and from Phoenix were delayed 2 hours each direction. Unacceptable. Disappointed with Air Canada I was given a food voucher fror trip to Phoenix but nothing on return. Both baggage claims took 2 hours to collect baggage

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Plane could have been more on time. More leg room .

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

Check in online was easy. Seats aren’t very comfortable

Book cheap flights from Phoenix to Illinois

Recent round-trip flight deals

6/12Wed
nonstopFrontier
3h 33mPHX-ORD
6/15Sat
nonstopFrontier
3h 51mORD-PHX
$114
6/12Wed
nonstopFrontier
3h 21mPHX-MDW
6/15Sat
nonstopFrontier
3h 47mMDW-PHX
$114
6/13Thu
nonstopAmerican Airlines
2h 54mPHX-STL
6/18Tue
nonstopAmerican Airlines
3h 20mSTL-PHX
$131
6/4Tue
nonstopAmerican Airlines
3h 00mPHX-STL
6/18Tue
nonstopAmerican Airlines
3h 20mSTL-PHX
$132
7/16Tue
1 stopSpirit Airlines
8h 52mPHX-ORD
7/20Sat
1 stopSpirit Airlines
13h 39mORD-PHX
$144
9/4Wed
1 stopSpirit Airlines
21h 27mPHX-ORD
9/11Wed
1 stopSpirit Airlines
15h 16mORD-PHX
$147
6/7Fri
1 stopUnited Airlines
8h 48mPHX-STL
6/8Sat
1 stopUnited Airlines
7h 05mSTL-PHX
$179
6/19Wed
nonstopUnited Airlines
3h 31mPHX-ORD
6/23Sun
nonstopUnited Airlines
3h 46mORD-PHX
$182
7/31Wed
1 stopDelta
6h 04mPHX-ORD
8/3Sat
1 stopDelta
6h 03mORD-PHX
$216
6/14Fri
1 stopDelta
5h 21mPHX-STL
6/16Sun
1 stopDelta
6h 18mSTL-PHX
$216

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/11Tue
1 stopSpirit Airlines
22h 15mPHX-ORD
$50
6/12Wed
nonstopFrontier
3h 33mPHX-ORD
$57
6/19Wed
nonstopFrontier
3h 21mPHX-MDW
$57
6/11Tue
nonstopAmerican Airlines
2h 54mPHX-STL
$66
6/25Tue
nonstopAmerican Airlines
3h 28mPHX-ORD
$82
7/27Sat
1 stopDelta
6h 01mPHX-ORD
$108
7/20Sat
1 stopDelta
6h 09mPHX-MDW
$108
6/18Tue
nonstopUnited Airlines
3h 31mPHX-ORD
$122
6/30Sun
nonstopUnited Airlines
3h 31mPHX-ORD
$130
6/2Sun
2 stopsAlaska Airlines
14h 59mPHX-STL
$354

Search by stops

Search by airline

Search by price

Last minute flights from Phoenix to Illinois

Last minute flight, train and bus deals

6/1Sat
nonstopAmerican Airlines
3h 00mPHX-STL
6/5Wed
nonstopAmerican Airlines
3h 17mSTL-PHX
$201
6/1Sat
nonstopFrontier
3h 40mPHX-ORD
6/3Mon
nonstopFrontier
3h 54mORD-PHX
$212
6/1Sat
multi-stopFrontier
12h 01mPHX-STL
6/5Wed
nonstopFrontier
3h 18mSTL-PHX
$221
5/31Fri
multi-stopSpirit Airlines
8h 30mPHX-ORD
6/4Tue
multi-stopSpirit Airlines
13h 57mORD-PHX
$230
5/30Thu
multi-stopSpirit Airlines
8h 44mPHX-ORD
7/22Mon
multi-stopSpirit Airlines
10h 06mORD-PHX
$234
5/31Fri
multi-stopDelta
5h 47mPHX-STL
6/2Sun
multi-stopDelta
6h 23mSTL-PHX
$340
6/1Sat
multi-stopUnited Airlines
8h 43mPHX-STL
6/5Wed
multi-stopUnited Airlines
13h 13mSTL-PHX
$528
5/30Thu
multi-stopUnited Airlines
7h 45mPHX-MLI
6/7Fri
multi-stopUnited Airlines
16h 55mMLI-PHX
$637
5/29Wed
multi-stopDelta
5h 10mPHX-MDW
5/29Wed
multi-stopDelta
6h 03mMDW-PHX
$666
6/1Sat
multi-stopAlaska Airlines
14h 59mPHX-STL
6/5Wed
multi-stopAlaska Airlines
15h 40mSTL-PHX
$1,035

Search by stops

Search by airline

Search by price