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Tucson

$178+ Cheap flights from Illinois to Tucson (TUS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TUS
Aug 31 — Sep 71
Mon 8/31
Mon 9/7
1 adult, Economy
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Cheap flight deals from Illinois to Tucson

Cheapest flights from Illinois to Tucson
Explore the most affordable flight options available from Illinois to Tucson. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 1, 2026.

This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 am
MLI
-
TUS
2 stops8h 20m
American Airlines
Sat 9/263:54 pm
TUS
-
MLI
1 stop5h 24m
American Airlines
Deal found 7/28$326
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:00 am
MLI
-
TUS
1 stop7h 29m
American Airlines
Sat 8/291:17 pm
TUS
-
MLI
1 stop6h 54m
American Airlines
Deal found 7/29$330
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:45 pm
MLI
-
TUS
1 stop6h 12m
American Airlines
Sun 9/63:58 pm
TUS
-
MLI
1 stop5h 28m
American Airlines
Deal found 7/29$339
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:48 pm
PIA
-
TUS
1 stop6h 09m
American Airlines
Tue 9/83:58 pm
TUS
-
PIA
1 stop5h 21m
American Airlines
Deal found 7/29$339
This American Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/274:43 pm
PIA
-
TUS
1 stop8h 43m
American Airlines
Sat 10/311:23 pm
TUS
-
PIA
2 stops8h 47m
American Airlines
Deal found 7/30$344
This American Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:11 am
MLI
-
TUS
1 stop7h 04m
American Airlines
Fri 9/1811:52 am
TUS
-
MLI
2 stops10h 13m
American Airlines
Deal found 8/1$345
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
MLI
-
TUS
2 stops11h 07m
American Airlines
Sat 8/229:34 am
TUS
-
MLI
2 stops12h 34m
American Airlines
Deal found 7/28$349
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:15 pm
STL
-
TUS
1 stop6h 10m
Southwest
Sat 8/297:50 am
TUS
-
STL
1 stop5h 40m
Southwest
Deal found 7/30$350
This American Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:21 am
STL
-
TUS
1 stop6h 46m
American Airlines
Tue 11/178:00 am
TUS
-
STL
1 stop5h 04m
American Airlines
Deal found 7/27$355
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:00 pm
STL
-
TUS
1 stop6h 46m
Delta
Sun 9/66:00 am
TUS
-
STL
1 stop6h 33m
Delta
Deal found 7/29$356
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:26 am
STL
-
TUS
1 stop6h 11m
American Airlines
Wed 9/93:54 pm
TUS
-
STL
1 stop5h 49m
American Airlines
Deal found 7/31$357
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
BMI
-
TUS
1 stop8h 18m
Delta
Wed 9/21:28 pm
TUS
-
BMI
1 stop7h 48m
Delta
Deal found 7/29$359

Find flight deals from Illinois to Tucson

Keep the following information in mind while searching for Illinois to Tucson flight deals. Data was last updated August 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$326
(American Airlines)

One-way from

$178
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$447

Good round-trip deal

$397 or less

Good one-way deal

$273 or less
Provider with most accurate pricing for Chicago (CHI)-Tucson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Tucson flights.
Search Deals
From Illinois to Tucson
Search Deals
One-way flight from Illinois to Tucson
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($73 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Tucson.
Search Deals
Price to beat on a one-way flight from Illinois to Tucson.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Tucson that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2026.
Use the filters below to find and compare flights from Illinois to Tucson that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Wed 9/23

4:33 pm-9:45 pm

1 stop7h 12m

Tucson

Sat 9/26

3:54 pm-11:18 pm

1 stop5h 24m

$330

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Thu 8/27

7:33 am-12:17 pm

1 stop6h 44m

Tucson

Sat 8/29

9:34 am-12:08 am

2 stops12h 34m

$335

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Wed 8/19

6:45 pm-10:57 pm

1 stop6h 12m

Tucson

Sat 8/22

1:17 pm-12:08 am

2 stops8h 51m

$344

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Thu 9/3

11:32 am-3:07 pm

1 stop5h 35m

Tucson

Sun 9/6

5:00 am-6:19 pm

2 stops11h 19m

$344

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 8/18

6:36 am-12:17 pm

1 stop7h 41m

Tucson

Wed 8/19

3:58 pm-11:42 pm

1 stop5h 44m

$355

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 9/1

5:00 pm-9:46 pm

1 stop6h 46m

Tucson

Sun 9/6

6:00 am-2:33 pm

1 stop6h 33m

$356

BloomingtonTucson

BMI - TUS

BMITUS

Bloomington-Normal

Wed 8/26

6:00 am-12:18 pm

1 stop8h 18m

Tucson

Wed 9/2

1:28 pm-11:16 pm

1 stop7h 48m

$359

BloomingtonTucson

BMI - TUS

BMITUS

Bloomington-Normal

Thu 8/27

6:00 am-12:18 pm

1 stop8h 18m

Tucson

Thu 9/3

1:28 pm-11:16 pm

1 stop7h 48m

$359

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Thu 8/27

2:20 pm-9:40 pm

2 stops9h 20m

Tucson

Thu 9/3

3:45 pm-12:50 am

1 stop7h 05m

$360

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 10/20

8:35 am-1:25 pm

2 stops6h 50m

Tucson

Sat 10/24

5:00 pm-11:35 pm

1 stop4h 35m

$360

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Tucson

Have a flexible travel schedule? Discover the best time to fly to Tucson from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Illinois to Tucson?

Currently, September is the cheapest month in which you can book a flight from Illinois to Tucson (average of $347). Flying from Illinois to Tucson in December is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to TUS?

Find hourly flight availability from Illinois to Tucson. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 1, 2026.

When flying from Illinois to Tucson, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 17% versus a flight at noon.

Weekly flight availability from Illinois to Tucson

Explore weekly flight availability from Illinois to Tucson. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 1, 2026.

The most flights from USIL to TUS are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (8 on average).

How much does it cost to fly round-trip from Illinois to Tucson?

Airfare is below average for this route at the moment.
Illinois to Tucson flights typically cost between $397 and $468 in December.
The cheapest round-trip price found within the last 5 days was $395 on Sun Country Air (Dec 26-Jan 3).

How far ahead should I book a flight from Illinois to Tucson?

The best time to book flights from Illinois to Tucson is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Tucson. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Tucson from Illinois?

    Located just 7.5 mi from the city center, Tucson (TUS) is the airport most travelers will use when flying to Tucson from Illinois.

  • How long is the flight from Illinois to Tucson?

    American Airlines, Delta, and Southwest can get you from Illinois to Tucson in just under 6h 46m. Your travel time can differ by up to 2h 34m. There are 1241 mi between Illinois and Tucson. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Illinois to Tucson one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $77. Users have also found prices from $123 and $153 on Southwest and American Airlines, respectively.

  • What are the most popular routes from Illinois to Tucson?

    While some choose either Chicago Midway - Tucson or Lambert-St Louis - Tucson, Chicago O'Hare Intl - Tucson is the most popular route from Illinois to Tucson.

  • What are the most reliable airlines from Illinois to Tucson?

    No one likes to see their flight delayed. When booking a flight from Illinois to Tucson consider choosing SkyWest Airlines (85%), United Airlines (85%) or Emirates (74%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Tucson?

    Looking at all options, your cheapest flight can be booked for $199. While the most popular route (Chicago O'Hare Intl - Tucson) can be booked for $397 on average, our data indicates $484 when flying from Illinois to Tucson.

  • Can I find deals for flights from Illinois to Tucson that include hotel bookings?

    Yes. In addition to deals on Illinois to Tucson flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Tucson?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Tucson.

  • Can I find deals for business class flights from Illinois to Tucson?

    Yes. Cheapflights offers flight deals from Illinois to Tucson by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Tucson?

    Currently, September is the cheapest month in which you can book a flight from Illinois to Tucson (average of $347). Flying from Illinois to Tucson in December is currently the most expensive (average of $554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Tucson?

Book flights to Tucson if you plan to visit one of these locations
Sierra Vista
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Alternative routes for Illinois to Tucson

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Illinois to Tucson

Discover the top 4 airlines that operate flights from Illinois to Tucson. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$504FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$463FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$484FlexibilityNo cancel feeOn-time63%
DeltaCheapest$328Average$590FlexibilityNo cancel feeOn-timeN/A

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