$83 Find Cheap Flights from Phoenix 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 Phoenix to Illinois departing on 5/29. 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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KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

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

Best Illinois Flight Deals from Phoenix

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

Chicago
Chicagononstop$158
Moline
Moline1 stop$261
Peoria
Peoria1 stop$251
Bloomington
Bloomington1 stop$359
Champaign
Champaign1 stop$752
Springfield
Springfield1 stop$421
Decatur
Decatur1 stop$314
St. Louis
St. Louis1 stop$181
Chicago
Chicagononstop$158
Moline
Moline1 stop$261
Peoria
Peoria1 stop$251
Bloomington
Bloomington1 stop$359
Champaign
Champaign1 stop$752
Springfield
Springfield1 stop$421
Decatur
Decatur1 stop$314
St. Louis
St. Louis1 stop$181

Cheap Flights from Phoenix to Illinois

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix 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.

Recent round-trip flight deals from Phoenix to Illinois

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Phoenix to Illinois.
Discover the best prices for you by selecting your travel dates on KAYAK.
 Logo
6:15 pm - 11:41 pmPHX-ORD
3h 26mnonstop
 Logo
9:02 pm - 8:13 amORD-PHX
13h 11m1 stop
Fri, May 30 - Sun, Jun 1
 Logo
6:15 pm - 11:41 pmPHX-ORD
3h 26mnonstop
 Logo
9:02 pm - 8:13 amORD-PHX
13h 11m1 stop
Fri, May 30 - Wed, Jun 4
Frontier Logo
1:07 pm - 8:53 pmPHX-MDW
5h 46m1 stop
Frontier Logo
8:36 pm - 10:31 pmMDW-PHX
3h 55mnonstop
$166Frontier
Find Deal
Sat, May 24 - Sun, May 25
Frontier Logo
6:15 pm - 11:41 pmPHX-ORD
3h 26mnonstop
Frontier Logo
3:18 pm - 5:20 pmORD-PHX
4h 02mnonstop
$176Frontier
Find Deal
Fri, May 30 - Mon, Jun 2
American Airlines Logo
5:00 am - 10:35 amPHX-ORD
3h 35mnonstop
American Airlines Logo
1:58 pm - 6:36 pmORD-PHX
6h 38m1 stop
$212American Airlines
Find Deal
Sun, May 25 - Sun, May 25
American Airlines Logo
11:45 pm - 5:13 amPHX-ORD
3h 28mnonstop
American Airlines Logo
7:06 am - 9:00 amORD-PHX
3h 54mnonstop
$224American Airlines
Find Deal
Sat, May 17 - Wed, May 21
United Airlines Logo
7:00 am - 12:31 pmPHX-ORD
3h 31mnonstop
United Airlines Logo
5:02 am - 8:41 amORD-PHX
5h 39m1 stop
$226United Airlines
Find Deal
Wed, May 21 - Sun, May 25
Southwest Logo
7:30 pm - 12:50 amPHX-MDW
3h 20mnonstop
Southwest Logo
6:10 am - 7:45 amMDW-PHX
3h 35mnonstop
$233Southwest
Find Deal
Tue, Jul 1 - Sat, Jul 5
Southwest Logo
5:15 am - 10:35 amPHX-MDW
3h 20mnonstop
Southwest Logo
5:55 am - 7:35 amMDW-PHX
3h 40mnonstop
$242Southwest
Find Deal
Fri, Jul 25 - Tue, Jul 29
United Airlines Logo
7:04 am - 12:45 pmPHX-ORD
3h 41mnonstop
United Airlines Logo
8:05 pm - 9:55 pmORD-PHX
3h 50mnonstop
$257United Airlines
Find Deal
Thu, Jul 10 - Mon, Jul 14
Useful Info

KAYAK's insights & trends for Phoenix to Illinois flights

Get data-powered insights and trends into flights from Phoenix to Illinois to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Phoenix Sky Harbor Intl Airport to Illinois flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Phoenix Sky Harbor Intl Airport to Illinois.

The cheapest ticket to Illinois from Phoenix Sky Harbor Intl Airport found in the last 72 hours was to Chicago, at $180 round-trip. The most popular route is from Phoenix Sky Harbor Intl Airport (PHX) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $214.

Can I save money by flying with a layover from Phoenix Sky Harbor Intl Airport 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 $687, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Phoenix Sky Harbor Intl Airport to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport 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 Phoenix Sky Harbor Intl Airport to Illinois is September, when tickets cost $164 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $303 and $292 respectively.

What’s the cheapest day of the week to fly from Phoenix to Illinois?

The average price of all round-trip flights from Phoenix Sky Harbor Intl Airport to Illinois clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Illinois on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Phoenix to Illinois. For your return ticket, we recommend flying on a Saturday and avoiding Sundays for the best deals.

How far in advance should I book a flight from Phoenix Sky Harbor Intl Airport 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 Phoenix Sky Harbor Intl Airport 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 Phoenix Sky Harbor Intl Airport 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.


Good to know

Low seasonJanuary
High seasonJune
Cheapest flight$83
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 17% lower on average.
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 from Phoenix 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 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 from Phoenix 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 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 from Phoenix 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 $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.

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 $129 one-way - $271 round-trip

Top 5 airlines serving from Phoenix to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Phoenix 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 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
SouthwestOverall score based on 4294 reviews
7.1Food
8.6Crew
7.6Entertainment
8.2Boarding
8.0Comfort
Airline reviews

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.

10.0 ExcellentRachel, Jan 2025TPA - MDW
Read more Southwest reviews

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.

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.

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.

We were delayed 3x and because I didn’t purchase my tickets directly from United Airlines I was told I Have to take care of it myself so I called Underpricer and they helped me but before I changed my flights I took the risk of sticking by what my tickets were and was lucky to have gotten on the original all flight with only 15 mins before take off. not sure if I will do this again

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

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

Bigger seats. Board back to front! Disembark front to back!

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

Service in first class no longer exists on American Airlines .

My seat was very worn. Otherwise I had an excellent flight

Boarding can be more efficiently done by having the back row passengers board first. This way, the other people do the have to wait for front row passengers to load their luggage in the overhead cabins. Food is simply pathetic for the price I paid. Cleanliness is simply poor; my seat was full of crumps.

Always a great flight on AA. PHX to DFW and vise versa is always going to be a pretty full flight but the crew handles it phenomenally.

also wi-fi never worked attendant said satellite coverage is spotty over water ..... but we were over land!

Not having it be changed after we bought the flight tickets from a direct flight getting in at a reasonable time to a connecting flight red eye of 9 hours, so that we would lose our 35 dollars in nonrefundable insurance would've been great! Our country really does need low-cost carrier options, but this type of "service" ain't it. Fortunately, had a little better success with them flying to and from San Juan PR last month at least.

terrible service, no room for a dog underfoot, a broken chair that is impossible to sit on and all this costs a lot of money

My experience with Spirit went pretty much as expected. It's a no frills airline, and you get what you pay for. I don't require much, so I was grateful to have an inexpensive way to travel. It is sad to me that the gate agents and flight crew don't smile much or seem very friendly or helpful. They are competent and efficient, and that's really all I need.

Terrible-extreme delay with very little communication, plane was overfull, luggage was returned on baggage claim in filthy condition.

Lower cost is the reason to fly Spirit. Should give free baggage with credit card.

Very difficult. Flew out on Dec 24th and it was a mess. They know it is going to be the busiest time of the year and they had no organization. Finally they called for people going on certiam flights so they could get them thru thw line then we had to rush to our gate to get in li e to board.We missed our flight do to being stuck at the border of Mexico. They would not work with us to make an affordable price so we had to wait a day with no where to go and pay 280 more for our flights. I would think that a complimentary drink would be nice. But we had to pay 4.49 for a coke. Not an overall good experience

I very late and supose be in home at 12 pm from yesterday but I stiill in detroi airport

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 reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

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.

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

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