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Illinois

$72+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
TUS — ORD
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 February 11, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/51:20 pm
TUS
-
STL
1 stop20h 59m
Frontier
Wed 3/1811:32 am
STL
-
TUS
2 stops27h 11m
Frontier
Deal found 2/8$239
This Expedia deal was found by Cheapflights users on 2/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/221:28 pm
TUS
-
ORD
1 stop9h 25m
Frontier
Thu 3/265:11 am
ORD
-
TUS
1 stop9h 32m
Frontier
Deal found 2/10$244
This Mytrip deal was found by Cheapflights users on 2/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/51:20 pm
TUS
-
ORD
1 stop15h 48m
Frontier
Sun 3/85:21 am
ORD
-
TUS
1 stop9h 22m
Frontier
Deal found 2/10$256
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Sun 3/811:49 am
TUS
-
STL
1 stop21h 30m
Frontier
Wed 3/1811:32 am
STL
-
TUS
2 stops27h 11m
Frontier
Deal found 2/8$257
This Kiwi.com deal was found by Cheapflights users on 2/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2211:49 am
TUS
-
ORD
2 stops34h 10m
Frontier
Wed 4/11:39 pm
ORD
-
TUS
1 stop25h 02m
Frontier
Deal found 2/10$260
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 3/51:20 pm
TUS
-
ORD
1 stop15h 48m
Multiple Airlines
Tue 3/108:42 pm
ORD
-
TUS
2 stops42h 01m
Multiple Airlines
Deal found 2/8$262
This Kiwi.com deal was found by Cheapflights users on 2/8. 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.
Fri 3/61:04 pm
TUS
-
STL
1 stop21h 15m
Frontier
Wed 3/1811:32 am
STL
-
TUS
2 stops27h 11m
Frontier
Deal found 2/8$263
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:00 am
TUS
-
ORD
Nonstop3h 32m
American Airlines
Sun 4/1210:11 pm
ORD
-
TUS
Nonstop3h 48m
American Airlines
Deal found 2/9$263
This United Airlines deal was found by Cheapflights users on 2/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/104:43 pm
TUS
-
ORD
1 stop5h 09m
United Airlines
Tue 3/177:52 pm
ORD
-
TUS
Nonstop4h 07m
United Airlines
Deal found 2/10$273
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:53 pm
TUS
-
MLI
1 stop5h 36m
American Airlines
Mon 5/116:40 pm
MLI
-
TUS
1 stop7h 19m
American Airlines
Deal found 2/9$280
This Kiwi.com deal was found by Cheapflights users on 2/8. 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 2/191:20 pm
TUS
-
ORD
1 stop27h 06m
Frontier
Sat 2/214:29 pm
ORD
-
TUS
2 stops20h 23m
Frontier
Deal found 2/8$282
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/101:23 pm
TUS
-
ORD
1 stop26h 03m
Multiple Airlines
Sun 4/124:36 pm
ORD
-
TUS
2 stops17h 31m
Multiple Airlines
Deal found 2/9$286

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 February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$239
(Kiwi.com)

One-way from

$72
(Kiwi.com)

Popular in

July

Cheapest in

August

Average price

$461

Good round-trip deal

$355 or less

Good one-way deal

$229 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, 5% 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 February 2026
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 February 11, 2026.
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

Thu 3/5

1:20 pm-6:08 am

1 stop15h 48m

Chicago O'Hare Intl

Sun 3/8

5:21 am-12:43 pm

1 stop9h 22m

$256

TucsonChicago

TUS - ORD

TUSORD

Tucson

Tue 3/10

4:43 pm-11:52 pm

1 stop5h 09m

Chicago O'Hare Intl

Tue 3/17

7:52 pm-9:59 pm

Nonstop4h 07m

$273

TucsonMoline

TUS - MLI

TUSMLI

Tucson

Sat 5/2

3:53 pm-11:29 pm

1 stop5h 36m

Moline Quad-City

Mon 5/11

6:40 pm-11:59 pm

1 stop7h 19m

$280

TucsonChicago

TUS - ORD

TUSORD

Tucson

Tue 3/24

7:10 am-6:05 pm

1 stop8h 55m

Chicago O'Hare Intl

Thu 4/2

2:32 pm-9:41 pm

1 stop9h 09m

$293

TucsonBloomington

TUS - BMI

TUSBMI

Tucson

Tue 5/12

6:00 am-2:16 pm

1 stop6h 16m

Bloomington-Normal

Fri 5/29

5:00 am-12:01 pm

2 stops9h 01m

$294

TucsonBloomington

TUS - BMI

TUSBMI

Tucson

Tue 5/12

1:27 pm-10:30 pm

1 stop7h 03m

Bloomington-Normal

Fri 5/29

4:14 pm-9:43 pm

1 stop7h 29m

$299

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 5/6

4:56 pm-12:25 am

1 stop5h 29m

Lambert-St Louis

Tue 5/19

2:27 pm-9:30 pm

1 stop9h 03m

$307

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 4/25

6:00 am-4:41 pm

1 stop8h 41m

Lambert-St Louis

Tue 4/28

6:11 pm-9:43 pm

1 stop5h 32m

$307

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 3/4

5:59 pm-12:25 am

1 stop5h 26m

Lambert-St Louis

Tue 3/17

5:21 pm-9:41 pm

1 stop6h 20m

$307

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Tue 5/5

7:10 am-5:26 pm

1 stop8h 16m

Lambert-St Louis

Tue 5/19

2:27 pm-9:30 pm

1 stop9h 03m

$307

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

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, September is the cheapest month in which you can book a flight from Tucson to Illinois (average of $106). Flying from Tucson to Illinois in August is currently the most expensive (average of $223). 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 February 11, 2026.

It’s typically best to fly out from Tucson to Illinois at noon. Doing so could potentially save you 40% 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 February 7, 2026.

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.

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 February 11, 2026.
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
4,280 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
9,273 reviews
Southwest
8.0
Very good
4,280 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
11,265 reviews
Southwest
8.0
Very good
4,280 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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
5.7
Fair
3,052 reviews
Southwest
8.0
Very good
4,280 reviews

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

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?

    Frontier, United Airlines, and American Airlines can get you from Tucson to Illinois in just under 5h 09m. Your travel time can differ by up to 10h 39m. The distance from Tucson to Illinois is about 1434 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 - 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: Envoy Air (100%), Royal Jordanian (90%), American Airlines( 88%).

  • What are the cheapest flights from Tucson to Illinois?

    The cheapest flight price from Tucson to Illinois is $181. On average you can expect to pay $988. The most popular route, (Tucson - Chicago O'Hare Intl), can usually be booked for $262.

  • 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, September is the cheapest month in which you can book a flight from Tucson to Illinois (average of $106). Flying from Tucson to Illinois in August is currently the most expensive (average of $223). 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$156Average$254FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$256Average$468FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$270Average$456FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$300Average$461FlexibilityNo cancel feeOn-time63%

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