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Tucson

$111+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TUS
avr. 6 — avr. 131
lun. 4/6
lun. 4/13
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 mars 7, 2026.

This American Airlines deal was found by Cheapflights users on 3/2. 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.
mer. 4/226:41 pm
MLI
-
TUS
1 stop7h 18m
American Airlines
sam. 4/253:53 pm
TUS
-
MLI
1 stop5h 36m
American Airlines
Deal found 3/2$271
This American Airlines deal was found by Cheapflights users on 3/2. 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.
mar. 3/245:22 pm
PIA
-
TUS
1 stop6h 45m
American Airlines
mar. 3/313:42 pm
TUS
-
PIA
1 stop5h 31m
American Airlines
Deal found 3/2$289
This Delta deal was found by Cheapflights users on 3/4. 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.
mer. 4/86:29 am
STL
-
TUS
1 stop8h 31m
Delta
mer. 4/157:10 am
TUS
-
STL
1 stop8h 16m
Delta
Deal found 3/4$303
This American Airlines deal was found by Cheapflights users on 3/2. 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.
mar. 4/76:11 pm
STL
-
TUS
1 stop5h 32m
American Airlines
mar. 4/145:05 pm
TUS
-
STL
1 stop4h 54m
American Airlines
Deal found 3/2$307
This Southwest deal was found by Cheapflights users on 3/3. 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.
mar. 4/143:55 pm
STL
-
TUS
2 stops8h 15m
Southwest
mar. 4/2112:45 pm
TUS
-
STL
1 stop7h 15m
Southwest
Deal found 3/3$308
This United Airlines deal was found by Cheapflights users on 3/3. 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.
mer. 4/222:50 pm
PIA
-
TUS
1 stop9h 12m
United Airlines
mar. 4/281:29 pm
TUS
-
PIA
1 stop5h 50m
United Airlines
Deal found 3/3$309
This Delta deal was found by Cheapflights users on 3/4. 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.
mar. 4/142:20 pm
STL
-
TUS
1 stop9h 11m
Delta
mar. 4/214:56 pm
TUS
-
STL
1 stop5h 29m
Delta
Deal found 3/4$321
This Delta deal was found by Cheapflights users on 3/4. 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.
sam. 4/185:00 pm
STL
-
TUS
1 stop6h 51m
Delta
mer. 4/224:56 pm
TUS
-
STL
1 stop5h 29m
Delta
Deal found 3/4$323
This United Airlines deal was found by Cheapflights users on 3/3. 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.
ven. 5/89:41 am
BMI
-
TUS
2 stops13h 40m
United Airlines
mar. 5/121:39 pm
TUS
-
BMI
2 stops8h 20m
United Airlines
Deal found 3/3$323
This Delta deal was found by Cheapflights users on 3/5. 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.
mar. 5/57:25 am
STL
-
TUS
1 stop6h 15m
Delta
lun. 5/114:52 pm
TUS
-
STL
1 stop5h 38m
Delta
Deal found 3/5$325
This Delta deal was found by Cheapflights users on 3/4. 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.
mar. 7/285:00 pm
MLI
-
TUS
1 stop6h 47m
Delta
sam. 8/16:00 am
TUS
-
MLI
1 stop8h 21m
Delta
Deal found 3/4$325
This Southwest deal was found by Cheapflights users on 3/7. 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.
sam. 4/1812:30 pm
STL
-
TUS
1 stop5h 10m
Southwest
mar. 4/214:20 pm
TUS
-
STL
1 stop4h 55m
Southwest
Deal found 3/7$327

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 mars 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(American Airlines)

One-way from

$111
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$494

Good round-trip deal

$385 or less

Good one-way deal

$201 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. 13% potential increase in price ($70 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 March 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 mars 7, 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

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

mar. 4/14

5:30 am-11:55 am

2 stops8h 25m

Tucson

mar. 4/28

12:45 pm-11:15 pm

2 stops8h 30m

$313

PeoriaTucson

PIA - TUS

PIATUS

Greater Peoria

mer. 4/22

5:35 pm-10:02 pm

1 stop6h 27m

Tucson

mar. 4/28

9:38 am-10:57 pm

2 stops11h 19m

$314

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

mer. 4/1

2:45 pm-8:55 pm

1 stop8h 10m

Tucson

sam. 4/4

11:55 am-1:50 am

1 stop11h 55m

$330

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

mar. 7/28

5:00 pm-9:47 pm

1 stop6h 47m

Tucson

sam. 8/1

6:00 am-4:21 pm

1 stop8h 21m

$355

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

mar. 4/28

6:30 am-11:35 am

1 stop7h 05m

Tucson

sam. 5/2

7:15 pm-10:04 am

2 stops12h 49m

$356

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

mer. 4/1

6:15 am-10:45 am

1 stop6h 30m

Tucson

mer. 4/8

7:50 am-6:50 pm

2 stops9h 00m

$358

ChicagoTucson

MDW - TUS

MDWTUS

Chicago Midway

sam. 4/4

9:25 pm-11:20 pm

Nonstop3h 55m

Tucson

mar. 4/7

6:35 pm-5:25 am

1 stop8h 50m

$360
Quickest round-trip

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

mar. 4/14

8:54 am-12:27 pm

1 stop5h 33m

Tucson

dim. 4/19

6:00 am-1:08 pm

1 stop5h 08m

$365

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

mer. 4/22

5:30 am-1:40 pm

2 stops10h 10m

Tucson

dim. 4/26

8:30 pm-10:35 am

1 stop12h 05m

$366

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

jeu. 4/16

2:20 pm-9:31 pm

1 stop9h 11m

Tucson

lun. 4/20

2:06 pm-11:13 pm

1 stop7h 07m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

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, May is the cheapest month in which you can book a flight from Illinois to Tucson (average of $99). Flying from Illinois to Tucson in March is currently the most expensive (average of $141). 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 mars 7, 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 23% versus a flight at noon.

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, United Airlines, and Delta can get you from Illinois to Tucson in just under 6h 27m. Your travel time can differ by up to 1h 58m. There are 1315 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 (68%), United Airlines (68%) or Royal Jordanian (63%) 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 $135. While the most popular route (Chicago O'Hare Intl - Tucson) can be booked for $291 on average, our data indicates $517 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, May is the cheapest month in which you can book a flight from Illinois to Tucson (average of $99). Flying from Illinois to Tucson in March is currently the most expensive (average of $141). 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
Green Valley

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Alternative routes for Illinois to Tucson

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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 mars 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$144Average$278FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$251Average$461FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$265Average$460FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$268Average$436FlexibilityNo cancel feeOn-time69%

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