HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tucson

$155+ 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TUS
Jul 27 — Aug 31
Mon 7/27
Mon 8/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Tucson with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 June 27, 2026.

This American Airlines deal was found by Cheapflights users on 6/24. 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 7/168:59 pm
ORD
-
TUS
Nonstop3h 43m
American Airlines
Wed 7/2212:35 pm
TUS
-
ORD
Nonstop3h 56m
American Airlines
Deal found 6/24$308
This American Airlines deal was found by Cheapflights users on 6/24. 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 8/410:00 am
ORD
-
TUS
Nonstop3h 45m
American Airlines
Tue 8/116:11 am
TUS
-
ORD
Nonstop3h 48m
American Airlines
Deal found 6/24$309
This Southwest deal was found by Cheapflights users on 6/23. 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.
Fri 11/612:20 pm
MDW
-
TUS
Nonstop3h 45m
Southwest
Tue 11/108:10 am
TUS
-
MDW
Nonstop3h 15m
Southwest
Deal found 6/23$309
This Delta deal was found by Cheapflights users on 6/24. 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 8/46:00 am
MLI
-
TUS
1 stop8h 18m
Delta
Wed 8/121:28 pm
TUS
-
MLI
1 stop6h 51m
Delta
Deal found 6/24$311
This American Airlines deal was found by Cheapflights users on 6/22. 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 7/2811:53 am
MLI
-
TUS
2 stops9h 59m
American Airlines
Sat 8/13:57 pm
TUS
-
MLI
1 stop5h 33m
American Airlines
Deal found 6/22$316
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Sat 9/129:45 am
ORD
-
TUS
Nonstop3h 52m
American Airlines
Sun 9/203:54 pm
TUS
-
ORD
1 stop6h 20m
American Airlines
Deal found 6/24$319
This American Airlines deal was found by Cheapflights users on 6/24. 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.
Sat 7/256:08 am
MLI
-
TUS
1 stop7h 22m
American Airlines
Fri 7/313:57 pm
TUS
-
MLI
1 stop5h 33m
American Airlines
Deal found 6/24$320
This United Airlines deal was found by Cheapflights users on 6/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:40 am
ORD
-
TUS
1 stop5h 48m
United Airlines
Tue 11/106:30 am
TUS
-
ORD
1 stop7h 04m
United Airlines
Deal found 6/23$329
This American Airlines deal was found by Cheapflights users on 6/24. 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 8/146:32 am
BMI
-
TUS
1 stop7h 45m
American Airlines
Mon 8/171:17 pm
TUS
-
BMI
1 stop7h 36m
American Airlines
Deal found 6/24$329
This Delta deal was found by Cheapflights users on 6/23. 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 12/96:00 am
MDW
-
TUS
1 stop7h 59m
Delta
Tue 12/151:40 pm
TUS
-
MDW
1 stop7h 30m
Delta
Deal found 6/23$329
This American Airlines deal was found by Cheapflights users on 6/23. 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 8/116:48 pm
PIA
-
TUS
1 stop6h 09m
American Airlines
Sat 8/293:58 pm
TUS
-
PIA
1 stop5h 21m
American Airlines
Deal found 6/23$329
This Delta deal was found by Cheapflights users on 6/26. 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.
Thu 11/52:55 pm
ORD
-
TUS
1 stop8h 12m
Delta
Thu 11/126:00 pm
TUS
-
ORD
2 stops13h 34m
Delta
Deal found 6/26$334

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 June 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$308
(American Airlines)

One-way from

$155
(Southwest)

Popular in

December

Cheapest in

September

Average price

$458

Good round-trip deal

$369 or less

Good one-way deal

$233 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 ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 27, 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

Tue 8/4

6:00 am-12:18 pm

1 stop8h 18m

Tucson

Wed 8/12

1:28 pm-10:19 pm

1 stop6h 51m

$311

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Sat 7/25

6:08 am-11:30 am

1 stop7h 22m

Tucson

Fri 7/31

3:57 pm-11:30 pm

1 stop5h 33m

$320

ChicagoTucson

MDW - TUS

MDWTUS

Chicago Midway

Fri 11/6

12:20 pm-3:05 pm

Nonstop3h 45m

Tucson

Tue 11/10

7:45 am-5:05 pm

2 stops8h 20m

$324

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Sat 11/14

2:55 pm-10:07 pm

1 stop8h 12m

Tucson

Sat 11/21

8:00 am-5:21 pm

1 stop8h 21m

$329

BloomingtonTucson

BMI - TUS

BMITUS

Bloomington-Normal

Fri 8/14

6:32 am-12:17 pm

1 stop7h 45m

Tucson

Mon 8/17

1:17 pm-10:53 pm

1 stop7h 36m

$329

ChicagoTucson

MDW - TUS

MDWTUS

Chicago Midway

Fri 8/21

6:15 pm-9:40 pm

1 stop5h 25m

Tucson

Mon 8/24

5:35 am-1:20 pm

1 stop5h 45m

$329

ChicagoTucson

MDW - TUS

MDWTUS

Chicago Midway

Wed 9/23

3:15 pm-8:35 pm

1 stop7h 20m

Tucson

Sun 9/27

7:05 pm-4:30 am

1 stop7h 25m

$329

PeoriaTucson

PIA - TUS

PIATUS

Greater Peoria

Sat 8/15

4:43 pm-9:26 pm

1 stop6h 43m

Tucson

Wed 8/19

3:58 pm-11:19 pm

1 stop5h 21m

$329

ChicagoTucson

MDW - TUS

MDWTUS

Chicago Midway

Fri 7/17

6:40 pm-11:45 pm

1 stop7h 05m

Tucson

Mon 7/20

7:00 pm-5:55 am

1 stop8h 55m

$329

ChicagoTucson

MDW - TUS

MDWTUS

Chicago Midway

Tue 8/18

12:20 pm-6:00 pm

1 stop7h 40m

Tucson

Thu 8/20

11:40 am-8:15 pm

1 stop6h 35m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/23

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 $119). Flying from Illinois to Tucson in June is currently the most expensive (average of $349). 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 June 27, 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 14% 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 June 27, 2026.

The most flights from USIL to TUS are scheduled on a Saturday (11 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

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

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

The best time to book flights from Illinois to Tucson is 89 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?

    Southwest, Delta, and American Airlines can get you from Illinois to Tucson in just under 3h 40m. Your travel time can differ by up to 4h 38m. There are 1437 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 $123 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 (79%), United Airlines (79%) or Emirates (67%) 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 $188. While the most popular route (Chicago O'Hare Intl - Tucson) can be booked for $309 on average, our data indicates $487 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 $119). Flying from Illinois to Tucson in June is currently the most expensive (average of $349). 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
Bisbee

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Tucson

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Las Vegas flights
John F Kennedy Intl to Las Vegas flights
Newark to Las Vegas flights
Seattle to Las Vegas flights
Los Angeles to Las Vegas flights
San Francisco to Las Vegas flights
Hobby to Las Vegas flights
Atlanta to Las Vegas flights
Santa Rosa to Las Vegas flights
O'Hare Intl to Las Vegas flights
Dulles Intl to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Detroit to Las Vegas flights
Reagan-National to Las Vegas flights
Orlando to Las Vegas flights
Boston to Las Vegas flights
LaGuardia to Las Vegas flights
Denver to Las Vegas flights
Baltimore to Las Vegas flights
Midway to Las Vegas flights
Austin to Las Vegas flights
Seattle to Sky Harbor Intl flights
San Jose to Las Vegas flights
Santa Ana to Las Vegas flights
Cleveland to Las Vegas flights
John F Kennedy Intl to Sky Harbor Intl flights
Fort Lauderdale to Las Vegas flights
Philadelphia to Las Vegas flights
Charlotte to Las Vegas flights
Newark to Sky Harbor Intl flights
Love Field to Las Vegas flights
Portland to Las Vegas flights
Minneapolis to Las Vegas flights
O'Hare Intl to Sky Harbor Intl flights
San Antonio to Las Vegas flights
Tampa to Las Vegas flights
Sky Harbor Intl to Las Vegas flights
Los Angeles to Sky Harbor Intl flights
Dulles Intl to Sky Harbor Intl flights
Burbank to Las Vegas flights
Dallas/Fort Worth to Sky Harbor Intl flights
Cincinnati to Las Vegas flights
Detroit to Sky Harbor Intl flights
San Diego to Las Vegas flights
Raleigh to Las Vegas flights
St. Louis to Las Vegas flights
Sacramento to Las Vegas flights
Boston to Sky Harbor Intl flights
Honolulu to Las Vegas flights
Atlanta to Sky Harbor Intl flights

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 June 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$198Average$485FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$288Average$463FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$472FlexibilityNo cancel feeOn-time63%
DeltaCheapest$328Average$590FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.