$100 Find Cheap Flights from Tucson 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 Tucson to Illinois departing on 4/13. 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
1 adult, Economy, 0 bags

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 Tucson to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Tucson to Illinois, as well as popular online travel agencies
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Cheap Flights from Tucson to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$309
Moline
Moline1 stop$320
Bloomington
Bloomington2 stops$419
Champaign
Champaign1 stop$500
St. Louis
St. Louis1 stop$266
Chicago
Chicago1 stop$309
Moline
Moline1 stop$320
Bloomington
Bloomington2 stops$419
Champaign
Champaign1 stop$500
St. Louis
St. Louis1 stop$266

Book Cheap Tucson to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Tucson 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Tucson to Illinois

Fri, Mar 27 - Thu, Apr 2
Frontier Logo
12:04 pm - 11:19 am
TUS
-
STL
21h 15m
1 stop
Frontier Logo
10:12 pm - 8:07 am
STL
-
TUS
11h 55m
1 stop
$266Frontier
Tue, May 5 - Wed, May 6
Alaska Airlines Logo
7:50 am - 11:59 pm
TUS
-
ORD
14h 09m
1 stop
Alaska Airlines Logo
8:48 pm - 10:41 pm
ORD
-
TUS
27h 53m
1 stop
$309Alaska Airlines
Sat, May 2 - Mon, May 11
American Airlines Logo
3:53 pm - 11:29 pm
TUS
-
MLI
5h 36m
1 stop
American Airlines Logo
6:40 pm - 11:59 pm
MLI
-
TUS
7h 19m
1 stop
$320American Airlines
Mon, May 4 - Mon, May 11
American Airlines Logo
3:47 pm - 11:29 pm
TUS
-
MLI
5h 42m
1 stop
American Airlines Logo
6:40 pm - 11:59 pm
MLI
-
TUS
7h 19m
1 stop
$329American Airlines
Sat, Apr 25 - Tue, Apr 28
Delta Logo
7:10 am - 3:01 pm
TUS
-
STL
5h 51m
1 stop
Delta Logo
2:20 pm - 9:31 pm
STL
-
TUS
9h 11m
1 stop
$339Delta
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
4:20 pm - 11:15 pm
TUS
-
STL
4h 55m
1 stop
Southwest Logo
8:25 am - 1:40 pm
STL
-
TUS
7h 15m
1 stop
$343Southwest
Tue, Apr 14 - Tue, Apr 21
Southwest Logo
4:20 pm - 11:15 pm
TUS
-
STL
4h 55m
1 stop
Southwest Logo
5:30 am - 11:55 am
STL
-
TUS
8h 25m
2 stops
$348Southwest
Wed, Apr 22 - Sat, Apr 25
Delta Logo
1:30 pm - 11:58 pm
TUS
-
ORD
8h 28m
1 stop
Delta Logo
7:15 am - 8:33 pm
ORD
-
TUS
15h 18m
2 stops
$370Delta
Wed, May 6 - Sat, May 9
United Airlines Logo
7:15 am - 1:00 pm
TUS
-
ORD
3h 45mnonstop
United Airlines Logo
10:49 am - 5:29 pm
ORD
-
TUS
8h 40m
1 stop
$380United Airlines
Sat, May 2 - Mon, May 11
United Airlines Logo
7:15 pm - 10:04 am
TUS
-
MLI
12h 49m
2 stops
United Airlines Logo
2:40 pm - 10:15 pm
MLI
-
TUS
9h 35m
1 stop
$405United Airlines
Booking Insights

KAYAK's insights & trends for Tucson to Illinois flights

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

What is the cheapest Tucson to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Tucson found in the last 72 hours was to Chicago, at $322 round-trip. The most popular route is from Tucson (TUS) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $386.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Tucson to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $487 on average. The most expensive time of day to fly to Illinois is generally at night, which is peak travel time and where the average cost of a ticket is $679.

Can I save money by flying with a layover from Tucson 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 $459, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Tucson to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Tucson 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 Tucson to Illinois is August, when tickets cost $291 (return) on average. On the other hand, the most expensive months are November and July, when the average cost of round-trip tickets is $471 and $468 respectively.

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

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

For Tucson to Illinois, Thursday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Illinois back to Tucson, the best deals are generally found on Tuesday, with Sunday being the most expensive.

How far in advance should I book a flight from Tucson 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 Tucson 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 Tucson to Illinois, you should book around 4 weeks before departure, which saves you about 48% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$100
Most popular time to fly with an average 1% increase in price.
Flight from Tucson to Chicago O'Hare Airport

FAQs - booking Illinois flights

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

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

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

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Tucson to the following destinations at these prices or less: Chicago $229 one-way - $429 round-trip; Chicago $255 one-way - $468 round-trip

Reviews of the top 4 airlines serving from Tucson to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Tucson 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 Tucson 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 4318 reviews
7.5Entertainment
8.1Boarding
8.6Crew
8.0Comfort
7.0Food
Airline reviews

WiFi was not working and didn’t have a beverage service

8.0 ExcellentNick, Mar 2026
BOS - MDW
Read more Southwest reviews

WiFi was not working and didn’t have a beverage service

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

WIFI was great. My selection for seating is an aisle, but during my trip, I never had an aisle seat. If we can get that corrected, I will be thrilled.

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

The seats were comfortable, and the boarding process was pretty smooth.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

mandatory demand customer to check their carry on because not enough people check bags.

Excellent. Would encourage Southwest to keep current boarding procedures with free style seating. Makes for a fantastic experience

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was good experience this time. The flight was on time.

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

Waiting for gate in RDU for more than 20mins is crazy.

American Airlines was great and worked very hard to change my ticket so I could get an earlier, direct flight back to Dallas. However, I was informed that Kayak made mistakes with my itinerary and classified my ticket as desiring to be on the earlier flight instead of taking the necessary step of calling AA to get me on the standby list. This ended up keeping me from being added to the standby list and delayed me getting home by 6 hours. I am happy to discuss this further with Kayak so they can correct their procedures so this won't happen again.

Waited for oxygen tanks for 30 minutes after boarding was complete.

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Everything you need to know for your flight from Tucson to Illinois

Information on your arrival and departure airports