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$82+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — ORD
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
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Cheap 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 December 28, 2025.

This American Airlines deal was found by Cheapflights users on 12/28. 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.
Mon 12/299:04 amTUS - EVV
1 stop5h 11mAmerican Airlines
Mon 1/53:45 pmEVV - TUS
1 stop8h 01mAmerican Airlines
Deal found 12/28$591
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:28 pmTUS - ORD
1 stop20h 46mMultiple Airlines
Sun 1/49:34 pmORD - TUS
2 stops15h 21mMultiple Airlines
Deal found 12/26$594
This Delta deal was found by Cheapflights users on 12/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:00 amTUS - EVV
1 stop8h 46mDelta
Mon 1/51:00 pmEVV - TUS
2 stops10h 27mDelta
Deal found 12/28$596
This Frontier deal was found by Cheapflights users on 12/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:50 pmTUS - ORD
1 stop10h 22mFrontier
Sun 1/49:05 amORD - TUS
1 stop9h 48mFrontier
Deal found 12/27$603
This eDestinos deal was found by Cheapflights users on 12/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:20 pmTUS - MDW
2 stops25h 52mFrontier
Sun 1/46:00 amMDW - TUS
2 stops30h 55mFrontier
Deal found 12/27$653
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:20 pmTUS - ORD
2 stops33h 45mMultiple Airlines
Sat 1/36:17 pmORD - TUS
1 stop24h 36mMultiple Airlines
Deal found 12/26$679
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:40 amTUS - ORD
2 stops22h 41mUnited Airlines
Sat 1/39:18 amORD - TUS
Nonstop4h 31mUnited Airlines
Deal found 12/26$759
This United Airlines deal was found by Cheapflights users on 12/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:40 pmTUS - ORD
2 stops14h 41mUnited Airlines
Sun 1/412:45 pmORD - TUS
1 stop6h 08mUnited Airlines
Deal found 12/27$764
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:40 amTUS - ORD
2 stops22h 41mUnited Airlines
Sat 1/39:18 amORD - TUS
Nonstop4h 31mUnited Airlines
Deal found 12/26$778
This Sun Country Air deal was found by Cheapflights users on 12/27. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:40 pmTUS - ORD
1 stop21h 58mSun Country Air
Tue 12/306:44 pmORD - TUS
1 stop24h 44mSun Country Air
Deal found 12/27$805
This American Airlines deal was found by Cheapflights users on 12/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/276:00 amTUS - ORD
Nonstop3h 31mAmerican Airlines
Sat 1/31:40 pmORD - TUS
1 stop6h 27mAmerican Airlines
Deal found 12/26$821
This United Airlines deal was found by Cheapflights users on 12/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:40 pmTUS - ORD
2 stops14h 41mUnited Airlines
Thu 1/17:55 pmORD - TUS
2 stops18h 43mUnited Airlines
Deal found 12/26$827

Find flight deals from Tucson to Illinois

Keep the following information in mind while searching for Tucson to Illinois flight deals. Data was last updated December 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$217
(Expedia)

One-way from

$82
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$507

Good round-trip deal

$358 or less

Good one-way deal

$208 or less
Provider with most accurate pricing for Tucson-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Tucson-Chicago (CHI) flights.
Search Deals
From Tucson to Illinois
Search Deals
One-way flight from Tucson to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($24 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 December 2025
Search Deals
Price to beat on a round-trip flight from Tucson to Illinois.
Search Deals
Price to beat on a one-way flight from Tucson to Illinois.
Search Deals

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 December 28, 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

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 2/18

4:02 pm-12:05 am

1 stop7h 03m

Lambert-St Louis

Sat 2/21

9:32 am-3:56 pm

1 stop7h 24m

$265

TucsonMoline

TUS - MLI

TUSMLI

Tucson

Sat 4/18

1:29 pm-9:16 pm

1 stop5h 47m

Moline Quad-City

Sat 4/25

8:54 am-12:27 pm

1 stop5h 33m

$271

TucsonMoline

TUS - MLI

TUSMLI

Tucson

Sat 5/2

7:27 am-2:17 pm

1 stop4h 50m

Moline Quad-City

Mon 5/11

6:41 pm-10:16 pm

1 stop5h 35m

$280

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Thu 2/26

1:20 pm-9:26 pm

1 stop7h 06m

Lambert-St Louis

Sun 3/1

3:19 pm-11:59 pm

1 stop9h 40m

$283

TucsonChicago

TUS - MDW

TUSMDW

Tucson

Sat 1/24

12:20 pm-4:30 pm

Nonstop3h 10m

Chicago Midway

Sat 1/31

8:25 am-2:25 pm

1 stop7h 00m

$284

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 1/28

1:42 pm-8:37 pm

1 stop5h 55m

Lambert-St Louis

Wed 2/4

2:38 pm-10:37 pm

1 stop8h 59m

$287

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 1/31

12:24 pm-9:38 pm

1 stop8h 14m

Lambert-St Louis

Tue 2/3

2:38 pm-10:37 pm

1 stop8h 59m

$287

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sun 1/25

12:12 pm-12:50 pm

1 stop23h 38m

Lambert-St Louis

Sun 2/1

2:50 pm-11:59 pm

1 stop10h 09m

$298

TucsonChicago

TUS - ORD

TUSORD

Tucson

Sat 1/31

6:00 am-2:38 pm

1 stop31h 38m

Chicago O'Hare Intl

Mon 2/2

6:06 pm-11:59 pm

1 stop30h 53m

$305

TucsonChicago

TUS - ORD

TUSORD

Tucson

Wed 2/25

6:00 am-2:11 pm

1 stop31h 11m

Chicago O'Hare Intl

Sun 3/1

7:00 am-11:59 pm

1 stop17h 59m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/26

Showing 1-10 of 60 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, February is the cheapest month in which you can book a flight from Tucson to Illinois (average of $104). Flying from Tucson to Illinois in August is currently the most expensive (average of $225). 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 December 28, 2025.

It’s typically best to fly out from Tucson to Illinois in the morning. Doing so could potentially save you 39% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Tucson to Illinois. Price data was last updated on December 27, 2025.

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

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 December 28, 2025.

The most flights from TUS to USIL are scheduled on a Monday (11 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (8 on average).

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 December 28, 2025.
Read through reviews of airlines operating flights from Tucson to Illinois, such as Southwest, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,113 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,070 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.8
Fair
3,064 reviews
Southwest
8.0
Very good
4,254 reviews

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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.

  • How long is the flight from Tucson to Illinois?

    American Airlines, United Airlines, and Southwest can get you from Tucson to Illinois in just under 3h 10m. Your travel time can differ by up to 3h 53m. The distance from Tucson to Illinois is about 1437 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $58. Users have also found prices from $121 and $145 on American Airlines and United Airlines, respectively.

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

    While some choose either Tucson - Lambert-St Louis or Tucson - Chicago Midway, 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: Royal Jordanian (100%), Iberia (100%), Qatar Airways( 95%).

  • What are the cheapest flights from Tucson to Illinois?

    The cheapest flight price from Tucson to Illinois is $167. On average you can expect to pay $611. The most popular route, (Tucson - Chicago O'Hare Intl), can usually be booked for $260.

  • 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, February is the cheapest month in which you can book a flight from Tucson to Illinois (average of $104). Flying from Tucson to Illinois in August is currently the most expensive (average of $225). 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 December 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$254FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$256Average$467FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$270Average$463FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$300Average$469FlexibilityNo cancel feeOn-time63%

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