$67 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 1/8. 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$162
Moline
Moline2 stops$274
Bloomington
Bloomington1 stop$539
Champaign
Champaign1 stop$572
St. Louis
St. Louis1 stop$267
Chicago
Chicago1 stop$162
Moline
Moline2 stops$274
Bloomington
Bloomington1 stop$539
Champaign
Champaign1 stop$572
St. Louis
St. Louis1 stop$267

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

Thu, Nov 13 - Sun, Nov 16
Frontier Logo
5:16 pm - 12:59 amTUS-ORD
6h 43m1 stop
Frontier Logo
6:00 am - 11:47 amORD-TUS
6h 47m1 stop
$162Frontier
Find Deal
Fri, Dec 5 - Mon, Dec 8
Frontier Logo
12:30 pm - 12:12 amTUS-ORD
10h 42m1 stop
Frontier Logo
12:59 pm - 6:41 pmORD-TUS
6h 42m1 stop
$182Frontier
Find Deal
Mon, Dec 29 - Wed, Jan 7
Multiple Airlines Logo
7:37 pm - 5:44 pmTUS-ORD
21h 07m1 stop
Multiple Airlines Logo
5:05 am - 1:07 pmORD-TUS
33h 02m2 stops
$263Multiple Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
Southwest Logo
5:25 am - 1:20 pmTUS-STL
6h 55m1 stop
Southwest Logo
4:30 pm - 10:40 pmSTL-TUS
7h 10m1 stop
$267Southwest
Find Deal
Fri, Nov 14 - Thu, Nov 20
Multiple Airlines Logo
2:20 pm - 5:32 amTUS-ORD
14h 12m1 stop
Multiple Airlines Logo
7:00 am - 12:53 pmORD-TUS
30h 53m2 stops
$270Multiple Airlines
Find Deal
Mon, Dec 8 - Thu, Dec 11
Southwest Logo
5:25 am - 1:20 pmTUS-STL
6h 55m1 stop
Southwest Logo
5:00 am - 12:40 pmSTL-TUS
8h 40m2 stops
$272Southwest
Find Deal
Wed, Nov 19 - Wed, Nov 26
United Airlines Logo
6:15 pm - 10:15 amTUS-MLI
15h 00m2 stops
United Airlines Logo
3:55 pm - 10:59 pmMLI-TUS
8h 04m1 stop
$274United Airlines
Find Deal
Thu, Feb 19 - Tue, Feb 24
United Airlines Logo
2:42 pm - 8:26 pmTUS-STL
4h 44m1 stop
United Airlines Logo
8:41 am - 4:02 pmSTL-TUS
8h 21m1 stop
$279United Airlines
Find Deal
Wed, Jan 28 - Wed, Feb 4
American Airlines Logo
6:25 am - 2:43 pmTUS-STL
7h 18m2 stops
American Airlines Logo
11:55 am - 7:21 pmSTL-TUS
8h 26m1 stop
$292American Airlines
Find Deal
Fri, Dec 5 - Wed, Dec 10
American Airlines Logo
1:43 pm - 6:23 pmTUS-ORD
3h 40mnonstop
American Airlines Logo
9:45 am - 12:53 pmORD-TUS
4h 08mnonstop
$316American Airlines
Find Deal
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 $336 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 $336.

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 $452, 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 $347 (return) on average. On the other hand, the most expensive months are November and December, when the average cost of round-trip tickets is $497 and $473 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, Wednesday 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 Wednesday, 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 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$79
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Tucson to St. Louis

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.

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

    The cheapest time of day to fly to Illinois is generally in the afternoon, when round-trip flights cost $485 on average. Morning departures are around 2% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $513.

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 $308 one-way - $397 round-trip; Chicago $245 one-way - $420 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 4242 reviews
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

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.

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

Everything was on time. I was disappointed by the front section female, African American flight attendant. I did not see her name tag or would have identified by name not race. As passengers moved to the bathroom early in flight, she would say with a disdainful tone “I have to say the seat belt light is on” then go back to her book. Better trained flight attendants say something like be careful the seat belt light is on.

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

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

Excellent experience. Starting with the agent at the Premier bag drop who noticed I was very early for my scheduled flight and offered to rebook me on an earlier flight with my seat preference. She would not let me leave the counter until she knew that all of the changes and new boarding pass showed up on my United app. At the gate, the flight boarded quickly such that we departed early and the flight was smooth. We arrived 20 minutes early at ORD and I was able to be home in time for dinner. One of the best flights I've had.

Salina to travers city was great! But the sept 24 Tranverse city was not! Traverse city to chichago was cancelled, i went to Denver & got to Salina 6 hours later!

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

A couple ladies from the crew were so rude and nasty. Thought they were mad at having to be there especially if you asked a question. This will make me think twice next time if I book a flight with you.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Excellent - explanations were clear staff was nice and flight was comfortable

Lost bag and 2 days no word leaving for cruise no clothes or stuff

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Food was ok, but not as good as I have had before on AA.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

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

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