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$124+ Cheap flights from Tucson (TUS) to Illinois

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — ORD
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Tucson to Illinois

Keep the following information in mind while searching for Tucson to Illinois flight deals. Data was last updated junio 12, 2025.

Round-trip from

$267
(Delta)

One-way from

$124
(Trip.com)

Popular in

February

Cheapest in

January

Average price

$471

Good round-trip deal

$381 or less

Good one-way deal

$202 or less
From Tucson to Illinois
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One-way flight from Tucson to Illinois
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High demand for flights, 2% potential price rise
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Cheapest flight prices on average. 0% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from Tucson to Illinois.
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Price to beat on a one-way flight from Tucson to Illinois.
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Find flight deals from Tucson to Illinois

Cheapest flights from Tucson to Illinois
Explore the most affordable flight options available from Tucson to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. 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.
dom. 9/1412:39 pmTUS - ORD
1 stop6h 23mFrontier
jue. 9/256:00 amORD - TUS
1 stop6h 47mFrontier
Deal found 6/11$265
This Delta deal was found by Cheapflights users on 6/9. 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.
mié. 9/245:00 pmTUS - STL
1 stop5h 37mDelta
mar. 9/303:30 pmSTL - TUS
1 stop8h 24mDelta
Deal found 6/9$267
This Delta deal was found by Cheapflights users on 6/9. 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.
sáb. 8/1612:54 pmTUS - MLI
1 stop7h 54mDelta
mar. 8/264:59 pmMLI - TUS
1 stop6h 48mDelta
Deal found 6/9$269
This Southwest deal was found by Cheapflights users on 6/10. 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. 8/55:40 amTUS - STL
1 stop7h 20mSouthwest
mié. 8/1310:15 amSTL - TUS
2 stops8h 20mSouthwest
Deal found 6/10$272
This American Airlines deal was found by Cheapflights users on 6/10. 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.
sáb. 8/301:43 pmTUS - STL
2 stops7h 31mAmerican Airlines
mar. 9/98:50 amSTL - TUS
2 stops7h 42mAmerican Airlines
Deal found 6/10$277
This American Airlines deal was found by Cheapflights users on 6/11. 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.
sáb. 8/161:43 pmTUS - MLI
2 stops7h 55mAmerican Airlines
mar. 8/266:20 amMLI - TUS
2 stops8h 53mAmerican Airlines
Deal found 6/11$279
This Booking.com deal was found by Cheapflights users on 6/11. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/1411:32 amTUS - MDW
1 stop5h 29mFrontier
jue. 9/254:29 pmMDW - TUS
1 stop20h 18mFrontier
Deal found 6/11$304
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/212:17 pmTUS - ORD
1 stop16h 46mAlaska Airlines
mar. 9/233:20 pmORD - TUS
1 stop22h 01mAlaska Airlines
Deal found 6/10$314
This Southwest deal was found by Cheapflights users on 6/10. 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.
sáb. 7/2612:50 pmTUS - MDW
Nonstop3h 20mSouthwest
mié. 7/308:35 pmMDW - TUS
Nonstop3h 35mSouthwest
Deal found 6/10$317
This American Airlines deal was found by Cheapflights users on 6/12. 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. 7/151:55 pmTUS - ORD
Nonstop3h 40mAmerican Airlines
sáb. 7/198:50 pmORD - TUS
Nonstop3h 54mAmerican Airlines
Deal found 6/12$317
This Delta deal was found by Cheapflights users on 6/11. 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.
sáb. 7/1212:56 pmTUS - MDW
1 stop6h 46mDelta
sáb. 7/199:25 amMDW - TUS
2 stops8h 55mDelta
Deal found 6/11$342
This Delta deal was found by Cheapflights users on 6/11. 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.
sáb. 7/1212:56 pmTUS - ORD
1 stop9h 13mDelta
sáb. 7/197:50 amORD - TUS
2 stops10h 47mDelta
Deal found 6/11$342

Cheapflights Fare Finder

Customize your flight search to find flights from Tucson to Illinois 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 junio 12, 2025.
Use the filters below to find and compare flights from Tucson to Illinois that are best for you.

Fly from

Tucson

Fly to

Illinois

Route

Depart

Return

Price

TucsonChicago

TUS - ORD

TUSORD

Tucson

dom. 9/14

12:39 pm-9:02 pm

1 stop6h 23m

Chicago O'Hare Intl

jue. 9/25

6:00 am-10:47 am

1 stop6h 47m

$265

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

mié. 9/24

5:00 pm-12:37 am

1 stop5h 37m

Lambert-St Louis

mar. 9/30

3:30 pm-9:54 pm

1 stop8h 24m

$267

TucsonMoline

TUS - MLI

TUSMLI

Tucson

sáb. 8/16

12:54 pm-10:48 pm

1 stop7h 54m

Moline Quad-City

mar. 8/26

4:59 pm-9:47 pm

1 stop6h 48m

$269

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

mar. 8/5

5:40 am-3:00 pm

1 stop7h 20m

Lambert-St Louis

mié. 8/13

10:15 am-4:35 pm

2 stops8h 20m

$272

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

sáb. 8/30

1:43 pm-11:14 pm

2 stops7h 31m

Lambert-St Louis

mar. 9/9

8:50 am-2:32 pm

2 stops7h 42m

$277

TucsonMoline

TUS - MLI

TUSMLI

Tucson

sáb. 8/16

1:43 pm-11:38 pm

2 stops7h 55m

Moline Quad-City

mar. 8/26

6:20 am-1:13 pm

2 stops8h 53m

$279

TucsonChicago

TUS - MDW

TUSMDW

Tucson

dom. 9/14

11:32 am-7:01 pm

1 stop5h 29m

Chicago Midway

jue. 9/25

4:29 pm-10:47 am

1 stop20h 18m

$304

TucsonChicago

TUS - ORD

TUSORD

Tucson

mar. 9/2

12:17 pm-7:03 am

1 stop16h 46m

Chicago O'Hare Intl

mar. 9/23

3:20 pm-11:21 am

1 stop22h 01m

$314

TucsonChicago

TUS - MDW

TUSMDW

Tucson

sáb. 7/26

12:50 pm-6:10 pm

Nonstop3h 20m

Chicago Midway

mié. 7/30

8:35 pm-10:10 pm

Nonstop3h 35m

$317

TucsonChicago

TUS - ORD

TUSORD

Tucson

mar. 7/15

1:55 pm-7:35 pm

Nonstop3h 40m

Chicago O'Hare Intl

sáb. 7/19

8:50 pm-10:44 pm

Nonstop3h 54m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 39 results
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Best time to book a flight from Tucson to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Tucson 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 Tucson to Illinois

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

Currently, August is the cheapest month in which you can book a flight from Tucson to Illinois (average of $245). Flying from Tucson to Illinois in March is currently the most expensive (average of $321). 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 TUS to IL?

Find hourly flight availability from Tucson to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

When flying from Tucson to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Tucson to Illinois

Explore weekly flight availability from Tucson to Illinois. 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 junio 12, 2025.

The most flights from TUS to USIL are scheduled on a Tuesday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated junio 12, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Tucson to Illinois by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Tucson to Illinois. 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 from for flights from Tucson to Illinois?

    For a flight from Tucson to Illinois, you will be flying from Tucson. Tucson (TUS) is just 7.5 mi from the center of the city.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $134. Users have also found prices from $135 and $159 on Frontier and Southwest, respectively.

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

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

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

    Before booking your flight to Illinois from Tucson, check out the most reliable airlines to get you to your destination on time: SkyWest Airlines (99%), United Airlines (97%), Emirates( 93%).

  • What are the cheapest flights from Tucson to Illinois?

    The cheapest flight price from Tucson to Illinois is $147. On average you can expect to pay $1,622. The most popular route, (Tucson - Chicago O'Hare Intl), can usually be booked for $339.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Tucson to Illinois 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 Tucson to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Tucson to Illinois (average of $245). Flying from Tucson to Illinois in March is currently the most expensive (average of $321). 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

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Alternative routes for Tucson to Illinois

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Top 4 airlines flying from Tucson to Illinois

Discover the top 4 airlines that operate flights from Tucson to Illinois. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$149Average$469FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$239Average$473FlexibilityNo cancel feeOn-time71%
DeltaCheapest$321Average$630FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$379Average$471FlexibilityNo cancel feeOn-time63%

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