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Tucson

$73+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TUS
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
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Find 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 October 23, 2025.

This American Airlines deal was found by Cheapflights users on 10/23. 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.
Wed 12/107:38 amSTL - TUS
1 stop7h 34mAmerican Airlines
Tue 12/165:54 pmTUS - STL
1 stop5h 02mAmerican Airlines
Deal found 10/23$179
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Thu 12/41:20 pmSTL - TUS
1 stop6h 42mAmerican Airlines
Tue 12/98:00 amTUS - STL
1 stop7h 34mAmerican Airlines
Deal found 10/22$190
This American Airlines deal was found by Cheapflights users on 10/21. 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 12/47:00 amSTL - TUS
1 stop7h 44mAmerican Airlines
Mon 12/89:09 amTUS - STL
1 stop6h 25mAmerican Airlines
Deal found 10/21$201
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Thu 12/49:45 amORD - TUS
Nonstop4h 08mAmerican Airlines
Sun 12/71:43 pmTUS - ORD
Nonstop3h 40mAmerican Airlines
Deal found 10/22$254
This American Airlines deal was found by Cheapflights users on 10/20. 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 12/25:17 amSTL - TUS
1 stop5h 22mAmerican Airlines
Fri 12/54:01 pmTUS - STL
1 stop6h 55mAmerican Airlines
Deal found 10/20$256
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/304:30 pmORD - TUS
2 stops22h 05mFrontier
Thu 11/69:21 amTUS - ORD
1 stop14h 38mFrontier
Deal found 10/21$256
This Frontier deal was found by Cheapflights users on 10/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amORD - TUS
1 stop6h 47mFrontier
Thu 11/135:16 pmTUS - ORD
1 stop6h 43mFrontier
Deal found 10/20$259
This American Airlines deal was found by Cheapflights users on 10/21. 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.
Mon 11/245:17 amSTL - TUS
1 stop5h 22mAmerican Airlines
Mon 11/245:55 pmTUS - STL
1 stop4h 56mAmerican Airlines
Deal found 10/21$261
This KAYAK deal was found by Cheapflights users on 10/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:45 amORD - TUS
Nonstop4h 08mAmerican Airlines
Thu 12/111:43 pmTUS - ORD
Nonstop3h 40mAmerican Airlines
Deal found 10/21$261
This Frontier deal was found by Cheapflights users on 10/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:00 amORD - TUS
1 stop6h 47mFrontier
Sun 11/212:32 pmTUS - ORD
1 stop11h 17mFrontier
Deal found 10/21$265
This American Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 12/155:14 amSTL - TUS
1 stop5h 23mAmerican Airlines
Thu 12/189:04 amTUS - STL
1 stop7h 06mAmerican Airlines
Deal found 10/22$266
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 12/99:07 amORD - TUS
Nonstop4h 23mUnited Airlines
Thu 12/115:30 pmTUS - ORD
1 stop5h 29mUnited Airlines
Deal found 10/21$267

Cheap flight deals from Illinois to Tucson

Keep the following information in mind while searching for Illinois to Tucson flight deals. Data was last updated October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(American Airlines)

One-way from

$73
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$378

Good round-trip deal

$280 or less

Good one-way deal

$145 or less
Provider with most accurate pricing for Chicago (CHI)-Tucson flight deals.
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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. 8% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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.
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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 October 23, 2025.
Use the filters below to find and compare flights from Illinois to Tucson that are best for you.

Fly from

Illinois

Fly to

Tucson

Route

Depart

Return

Price

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Tue 1/6

5:50 am-3:14 pm

1 stop10h 24m

Tucson

Sat 1/10

1:40 pm-11:54 pm

1 stop9h 14m

$264

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Thu 1/1

5:30 am-12:12 pm

1 stop7h 42m

Tucson

Tue 1/6

1:40 pm-11:54 pm

1 stop9h 14m

$268

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Wed 4/15

5:42 pm-9:25 pm

1 stop5h 43m

Tucson

Sat 4/18

1:30 pm-9:03 pm

1 stop5h 33m

$269

PeoriaTucson

PIA - TUS

PIATUS

Greater Peoria

Tue 1/6

5:18 pm-11:15 pm

1 stop6h 57m

Tucson

Sat 1/10

2:32 pm-8:47 pm

1 stop5h 15m

$269

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Thu 11/20

5:12 pm-11:59 pm

1 stop7h 47m

Tucson

Thu 11/27

6:00 am-4:28 pm

1 stop9h 28m

$269

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Sun 11/23

5:12 pm-11:59 pm

1 stop7h 47m

Tucson

Thu 11/27

6:00 am-4:28 pm

1 stop9h 28m

$269

ChicagoTucson

MDW - TUS

MDWTUS

Chicago Midway

Thu 1/1

5:15 am-10:20 am

1 stop6h 05m

Tucson

Sat 1/10

12:20 pm-4:30 pm

Nonstop3h 10m

$294

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Sat 11/8

5:20 pm-10:59 pm

1 stop6h 39m

Tucson

Wed 11/12

2:40 pm-9:01 pm

1 stop5h 21m

$294

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Fri 11/7

5:20 pm-10:59 pm

1 stop6h 39m

Tucson

Wed 11/12

2:40 pm-9:01 pm

1 stop5h 21m

$294

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Fri 11/7

5:00 pm-11:30 pm

1 stop7h 30m

Tucson

Wed 12/3

6:00 am-4:19 pm

1 stop9h 19m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/22

Showing 1-10 of 60 results
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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, April is the cheapest month in which you can book a flight from Illinois to Tucson (average of $59). Flying from Illinois to Tucson in March is currently the most expensive (average of $164). 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 October 23, 2025.

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 evening, which can drop the price by up to 24% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Illinois to Tucson. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Illinois to Tucson flight should consider departing on Sunday at noon when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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?

    Delta, United Airlines, and Southwest can get you from Illinois to Tucson in just under 5h 43m. Your travel time can differ by up to 4h 41m. There are 1296 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 United Airlines. According to our data, you can fly for as low as $82. Users have also found prices from $82 and $94 on American Airlines and Southwest, 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 (94%), United Airlines (84%) or American Airlines (80%) 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 $198. While the most popular route (Chicago O'Hare Intl - Tucson) can be booked for $163 on average, our data indicates $752 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, April is the cheapest month in which you can book a flight from Illinois to Tucson (average of $59). Flying from Illinois to Tucson in March is currently the most expensive (average of $164). 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

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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$193FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$208Average$475FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$286Average$454FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$291Average$465FlexibilityNo cancel feeOn-time63%

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