HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$109+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — ORD
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Tucson to Illinois 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 Tucson to Illinois

Keep the following information in mind while searching for Tucson to Illinois flight deals. Data was last updated abril 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$263
(Delta)

One-way from

$109
(Frontier)

Popular in

February

Cheapest in

January

Average price

$403

Good round-trip deal

$386 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
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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

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 abril 29, 2025.

This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/56:00 amTUS - MLI
1 stop8h 47mDelta
jue. 7/105:55 amMLI - TUS
1 stop7h 50mDelta
Deal found 4/27$263
This Delta deal was found by Cheapflights users on 4/28. 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.
mié. 5/215:50 amTUS - STL
1 stop5h 44mDelta
mar. 6/36:00 amSTL - TUS
1 stop8h 00mDelta
Deal found 4/28$267
This American Airlines deal was found by Cheapflights users on 4/29. 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. 6/311:23 amTUS - STL
1 stop6h 06mAmerican Airlines
sáb. 6/75:37 amSTL - TUS
2 stops7h 34mAmerican Airlines
Deal found 4/29$272
This American Airlines deal was found by Cheapflights users on 4/29. 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. 8/3010:26 amTUS - MLI
2 stops9h 25mAmerican Airlines
dom. 8/316:00 amMLI - TUS
2 stops9h 12mAmerican Airlines
Deal found 4/29$279
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/258:15 amTUS - STL
1 stop7h 55mSouthwest
lun. 6/25:20 amSTL - TUS
1 stop5h 40mSouthwest
Deal found 4/27$293
This United Airlines deal was found by Cheapflights users on 4/29. 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.
vie. 5/304:24 pmTUS - STL
1 stop5h 35mUnited Airlines
dom. 6/16:30 amSTL - TUS
1 stop7h 06mUnited Airlines
Deal found 4/29$313
This Delta deal was found by Cheapflights users on 4/29. 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. 6/1712:55 pmTUS - ORD
1 stop9h 08mDelta
mié. 6/257:10 amORD - TUS
1 stop6h 39mDelta
Deal found 4/29$327
This American Airlines deal was found by Cheapflights users on 4/29. 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.
mié. 5/285:25 amTUS - ORD
Nonstop3h 30mAmerican Airlines
mar. 6/39:30 pmORD - TUS
Nonstop3h 53mAmerican Airlines
Deal found 4/29$339
This Frontier deal was found by Cheapflights users on 4/29. 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. 5/1812:06 pmTUS - ORD
1 stop9h 35mFrontier
jue. 5/226:00 amORD - TUS
1 stop6h 43mFrontier
Deal found 4/29$340
This Southwest deal was found by Cheapflights users on 4/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/306:45 amTUS - MDW
Nonstop3h 15mSouthwest
mié. 9/36:05 pmMDW - TUS
1 stop5h 35mSouthwest
Deal found 4/28$349
This United Airlines deal was found by Cheapflights users on 4/29. 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.
mié. 6/184:24 pmTUS - ORD
1 stop6h 01mUnited Airlines
mié. 6/259:30 amORD - TUS
Nonstop4h 06mUnited Airlines
Deal found 4/29$349
This Delta deal was found by Cheapflights users on 4/28. 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.
mar. 6/246:00 amTUS - MDW
1 stop7h 41mDelta
mar. 7/16:00 amMDW - TUS
1 stop7h 49mDelta
Deal found 4/28$359

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 abril 29, 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

TucsonMoline

TUS - MLI

TUSMLI

Tucson

sáb. 7/5

1:00 pm-10:47 pm

1 stop7h 47m

Moline Quad-City

jue. 7/10

5:55 am-11:45 am

1 stop7h 50m

$263

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

mié. 5/21

4:55 pm-12:33 am

1 stop5h 38m

Lambert-St Louis

mar. 6/3

3:40 pm-9:21 pm

1 stop7h 41m

$267

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

mar. 6/3

11:23 am-7:29 pm

1 stop6h 06m

Lambert-St Louis

sáb. 6/7

5:37 am-11:11 am

2 stops7h 34m

$272

TucsonMoline

TUS - MLI

TUSMLI

Tucson

sáb. 8/30

10:26 am-9:51 pm

2 stops9h 25m

Moline Quad-City

dom. 8/31

6:00 am-1:12 pm

2 stops9h 12m

$279

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

dom. 5/25

8:15 am-6:10 pm

1 stop7h 55m

Lambert-St Louis

lun. 6/2

5:20 am-9:00 am

1 stop5h 40m

$293

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

vie. 5/30

4:24 pm-11:59 pm

1 stop5h 35m

Lambert-St Louis

dom. 6/1

6:30 am-11:36 am

1 stop7h 06m

$313

TucsonChicago

TUS - ORD

TUSORD

Tucson

mar. 6/17

12:55 pm-12:03 am

1 stop9h 08m

Chicago O'Hare Intl

mié. 6/25

7:10 am-11:49 am

1 stop6h 39m

$327

TucsonChicago

TUS - ORD

TUSORD

Tucson

mié. 5/28

5:25 am-10:55 am

Nonstop3h 30m

Chicago O'Hare Intl

mar. 6/3

9:30 pm-11:23 pm

Nonstop3h 53m

$339

TucsonChicago

TUS - ORD

TUSORD

Tucson

dom. 5/18

12:06 pm-11:41 pm

1 stop9h 35m

Chicago O'Hare Intl

jue. 5/22

6:00 am-10:43 am

1 stop6h 43m

$340

TucsonChicago

TUS - MDW

TUSMDW

Tucson

sáb. 8/30

6:45 am-12:00 pm

Nonstop3h 15m

Chicago Midway

mié. 9/3

6:05 pm-9:40 pm

1 stop5h 35m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 36 results
1
2
3
4

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 abril 29, 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 abril 29, 2025.

The most flights from TUS to USIL are scheduled on a Monday (12 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (7 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 abril 29, 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
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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
2,405 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Food

7.1

Overall

8.0

Comfort

7.9

Boarding

8.2

Crew

8.5

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 Frontier. According to our data, you can fly for as low as $109. Users have also found prices from $134 and $148 on Delta 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: United Airlines (95%), SkyWest Airlines (93%), American Airlines( 86%).

  • What are the cheapest flights from Tucson to Illinois?

    The cheapest flight price from Tucson to Illinois is $162. On average you can expect to pay $918. The most popular route, (Tucson - Chicago O'Hare Intl), can usually be booked for $297.

  • 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

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 Tucson to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to John F Kennedy Intl flights
Sky Harbor Intl to Seattle flights
Sky Harbor Intl to Newark flights
Sky Harbor Intl to O'Hare Intl flights
Sky Harbor Intl to Dallas/Fort Worth flights
Las Vegas to Seattle flights
Sky Harbor Intl to Denver flights
Sky Harbor Intl to Honolulu flights
Sky Harbor Intl to LaGuardia flights
Sky Harbor Intl to San Francisco flights
Sky Harbor Intl to Los Angeles flights
Las Vegas to Honolulu flights
Tucson to Seattle flights
Sky Harbor Intl to Minneapolis flights
Las Vegas to Dallas/Fort Worth flights
Sky Harbor Intl to Boston flights
Las Vegas to Los Angeles flights
Sky Harbor Intl to Miami flights
Las Vegas to Denver flights
Sky Harbor Intl to Dulles Intl flights
Sky Harbor Intl to Orlando flights
Sky Harbor Intl to Reagan-National flights
Sky Harbor Intl to Las Vegas flights
Sky Harbor Intl to George Bush Intcntl flights
Las Vegas to Newark flights
Sky Harbor Intl to Portland flights
Sky Harbor Intl to Hobby flights
Sky Harbor Intl to Midway flights
Las Vegas to John F Kennedy Intl flights
Sky Harbor Intl to Atlanta flights
Sky Harbor Intl to Nashville flights
Sky Harbor Intl to Detroit flights
Sky Harbor Intl to Kahului flights
Las Vegas to Santa Ana flights
Sky Harbor Intl to Ontario flights
Las Vegas to Dulles Intl flights
Las Vegas to Boston flights
Las Vegas to Everett flights
Las Vegas to O'Hare Intl flights
Sky Harbor Intl to Baltimore flights
Sky Harbor Intl to Love Field flights
Las Vegas to Burbank flights
Sky Harbor Intl to Salt Lake City flights
Las Vegas to LaGuardia flights
Sky Harbor Intl to Everett flights
Las Vegas to Fort Lauderdale flights
Sky Harbor Intl to San Diego flights
Las Vegas to Orlando flights
Sky Harbor Intl to Anchorage flights
Sky Harbor Intl to Burbank flights

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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$149Average$480FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$247Average$476FlexibilityNo cancel feeOn-time71%
DeltaCheapest$298Average$608FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$379Average$471FlexibilityNo cancel feeOn-time63%

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.