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$100+ 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 6/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TUS
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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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 June 16, 2025.

Round-trip from

$200
(Frontier)

One-way from

$100
(Frontier)

Popular in

March

Cheapest in

August

Average price

$482

Good round-trip deal

$357 or less

Good one-way deal

$201 or less
From Illinois to Tucson
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One-way flight from Illinois to Tucson
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Highest demand for flights based on searches. 1% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 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 Illinois to Tucson.
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Price to beat on a one-way flight from Illinois to Tucson.
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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 June 16, 2025.

This Frontier deal was found by Cheapflights users on 6/16. 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 6/265:40 amORD - TUS
1 stop7h 02mFrontier
Sun 6/2911:27 amTUS - ORD
1 stop10h 16mFrontier
Deal found 6/16$200
This FlightHub deal was found by Cheapflights users on 6/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/97:29 pmSTL - TUS
1 stop17h 16mFrontier
Sun 7/1311:30 amTUS - STL
1 stop19h 41mFrontier
Deal found 6/14$210
This Delta deal was found by Cheapflights users on 6/15. 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.
Thu 8/215:11 pmSTL - TUS
1 stop6h 36mDelta
Mon 8/254:55 pmTUS - STL
1 stop5h 43mDelta
Deal found 6/15$267
This FlightHub deal was found by Cheapflights users on 6/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/296:25 amMDW - TUS
1 stop7h 23mFrontier
Thu 7/312:43 pmTUS - MDW
1 stop24h 13mFrontier
Deal found 6/14$268
This Delta deal was found by Cheapflights users on 6/15. 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.
Fri 8/224:59 pmMLI - TUS
1 stop6h 48mDelta
Mon 8/2512:54 pmTUS - MLI
1 stop7h 54mDelta
Deal found 6/15$269
This American Airlines deal was found by Cheapflights users on 6/14. 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 8/2110:08 amSTL - TUS
1 stop6h 48mAmerican Airlines
Mon 8/251:43 pmTUS - STL
2 stops7h 31mAmerican Airlines
Deal found 6/14$272
This Orbitz deal was found by Cheapflights users on 6/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/105:40 amORD - TUS
1 stop7h 05mMultiple Airlines
Tue 7/1512:06 pmTUS - ORD
1 stop9h 53mMultiple Airlines
Deal found 6/15$273
This American Airlines deal was found by Cheapflights users on 6/16. 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 7/256:37 pmMLI - TUS
1 stop6h 07mAmerican Airlines
Sun 8/38:28 pmTUS - MLI
2 stops12h 27mAmerican Airlines
Deal found 6/16$274
This Southwest deal was found by Cheapflights users on 6/15. 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.
Thu 8/211:10 pmSTL - TUS
2 stops11h 05mSouthwest
Mon 8/251:35 pmTUS - STL
2 stops7h 00mSouthwest
Deal found 6/15$277
This American Airlines deal was found by Cheapflights users on 6/14. 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 7/2311:40 amORD - TUS
Nonstop3h 35mAmerican Airlines
Wed 7/306:24 amTUS - ORD
Nonstop3h 35mAmerican Airlines
Deal found 6/14$316
This United Airlines deal was found by Cheapflights users on 6/16. 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.
Fri 7/256:30 amMLI - TUS
1 stop6h 56mUnited Airlines
Sun 8/311:24 amTUS - MLI
1 stop8h 13mUnited Airlines
Deal found 6/16$316
This Southwest deal was found by Cheapflights users on 6/14. 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.
Wed 7/308:35 pmMDW - TUS
Nonstop3h 35mSouthwest
Sat 8/212:50 pmTUS - MDW
Nonstop3h 20mSouthwest
Deal found 6/14$317

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 June 16, 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

Thu 6/26

5:40 am-10:42 am

1 stop7h 02m

Tucson

Sun 6/29

11:27 am-11:43 pm

1 stop10h 16m

$200

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 7/9

7:29 pm-10:45 am

1 stop17h 16m

Tucson

Sun 7/13

11:30 am-9:11 am

1 stop19h 41m

$210

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Thu 8/21

5:11 pm-9:47 pm

1 stop6h 36m

Tucson

Mon 8/25

4:55 pm-12:38 am

1 stop5h 43m

$267

ChicagoTucson

MDW - TUS

MDWTUS

Chicago Midway

Sun 6/29

6:25 am-11:48 am

1 stop7h 23m

Tucson

Thu 7/3

12:43 pm-2:56 pm

1 stop24h 13m

$268

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Fri 8/22

4:59 pm-9:47 pm

1 stop6h 48m

Tucson

Mon 8/25

12:54 pm-10:48 pm

1 stop7h 54m

$269

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Thu 8/21

10:08 am-2:56 pm

1 stop6h 48m

Tucson

Mon 8/25

1:43 pm-11:14 pm

2 stops7h 31m

$272

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Thu 7/10

5:40 am-10:45 am

1 stop7h 05m

Tucson

Tue 7/15

12:06 pm-11:59 pm

1 stop9h 53m

$273

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Fri 7/25

6:37 pm-10:44 pm

1 stop6h 07m

Tucson

Sun 8/3

8:28 pm-10:55 am

2 stops12h 27m

$274

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Thu 8/21

1:10 pm-10:15 pm

2 stops11h 05m

Tucson

Mon 8/25

1:35 pm-10:35 pm

2 stops7h 00m

$277

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Fri 7/25

6:30 am-11:26 am

1 stop6h 56m

Tucson

Sun 8/3

11:24 am-9:37 pm

1 stop8h 13m

$316

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 42 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, January is the cheapest month in which you can book a flight from Illinois to Tucson (average of $364). Flying from Illinois to Tucson in March is currently the most expensive (average of $424). 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 June 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Tucson as you normally would.

Weekly flight availability from Illinois to Tucson

Explore weekly flight availability from Illinois to Tucson. 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 June 16, 2025.

The most flights from USIL to TUS are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Tucson by month

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

In terms of precipitation, rainfall in Tucson ranges from 0.2 - 2.4 inches per month. August is typically the wettest month, when rainfall can reach 2.4 in. May is typically the driest time to visit Tucson when rainfall is around 0.2 in.

Temperature in Tucson by month

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

If weather is an important factor for your trip to Tucson, 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 87.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Tucson

Get insights into the airlines that provide service to Tucson. 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 Tucson. Reviews last updated June 16, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Illinois to Tucson to help guide your decision. 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

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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
2,500 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Comfort

7.8

Food

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

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 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.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $100. Users have also found prices from $134 and $139 on Delta and American Airlines, respectively.

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

    While some choose either Lambert-St Louis - Tucson or Chicago Midway - 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 United Airlines (90%), SkyWest Airlines (89%) or Emirates (86%) 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 $134. While the most popular route (Chicago O'Hare Intl - Tucson) can be booked for $325 on average our data indicates $414 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, January is the cheapest month in which you can book a flight from Illinois to Tucson (average of $364). Flying from Illinois to Tucson in March is currently the most expensive (average of $424). 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 Illinois?

Book flights to Illinois 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 5 airlines flying from Illinois to Tucson

Discover the top 5 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$109Average$192FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$208Average$454FlexibilityNo cancel feeOn-time71%
DeltaCheapest$268Average$293FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$452FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$375Average$465FlexibilityNo cancel feeOn-time63%

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