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$55+ 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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TUS
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$317
(Delta)

One-way from

$55
(Frontier)

Popular in

December

Cheapest in

August

Average price

$445

Good round-trip deal

$389 or less

Good one-way deal

$223 or less
Provider with most accurate pricing for Chicago (CHI)-Tucson flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Tucson flights.
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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. 2% potential increase in price ($10 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 February 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 February 20, 2025.

This Delta deal was found by Cheapflights users on 2/18. 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.
Tue 3/116:00 amSTL - TUS
1 stop7h 25mDelta
Tue 3/183:14 pmTUS - STL
1 stop6h 17mDelta
Deal found 2/18$317
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Thu 3/136:15 amSTL - TUS
1 stop6h 25mUnited Airlines
Thu 3/276:30 amTUS - STL
1 stop6h 46mUnited Airlines
Deal found 2/20$318
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/74:52 pmPIA - TUS
1 stop7h 53mAmerican Airlines
Tue 3/116:30 amTUS - PIA
1 stop6h 31mAmerican Airlines
Deal found 2/20$319
This United Airlines deal was found by Cheapflights users on 2/20. 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 3/75:20 pmMLI - TUS
1 stop6h 43mUnited Airlines
Tue 3/117:00 amTUS - MLI
1 stop7h 39mUnited Airlines
Deal found 2/20$320
This Southwest deal was found by Cheapflights users on 2/20. 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 3/122:20 pmSTL - TUS
1 stop6h 20mSouthwest
Wed 3/266:40 amTUS - STL
2 stops8h 40mSouthwest
Deal found 2/20$322
This American Airlines deal was found by Cheapflights users on 2/20. 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.
Tue 3/257:25 amSTL - TUS
1 stop5h 55mAmerican Airlines
Fri 3/283:56 pmTUS - STL
1 stop4h 48mAmerican Airlines
Deal found 2/20$330
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 3/253:11 pmSTL - TUS
2 stops27h 53mAlaska Airlines
Wed 4/26:00 amTUS - STL
1 stop15h 59mAlaska Airlines
Deal found 2/19$363
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/198:37 pmORD - TUS
Nonstop4h 01mAmerican Airlines
Tue 3/255:20 amTUS - ORD
Nonstop3h 21mAmerican Airlines
Deal found 2/19$367
This Expedia deal was found by Cheapflights users on 2/18. 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.
Tue 4/12:05 pmORD - TUS
1 stop11h 45mMultiple Airlines
Fri 4/411:49 amTUS - ORD
1 stop10h 53mMultiple Airlines
Deal found 2/18$369
This Frontier deal was found by Cheapflights users on 2/20. 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.
Mon 3/246:30 amORD - TUS
1 stop6h 29mFrontier
Fri 3/2811:49 amTUS - ORD
1 stop10h 55mFrontier
Deal found 2/20$370
This Frontier deal was found by Cheapflights users on 2/18. 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.
Fri 3/76:40 amMDW - TUS
1 stop6h 19mFrontier
Fri 3/1411:49 amTUS - MDW
1 stop10h 28mFrontier
Deal found 2/18$370
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 4/27:10 amORD - TUS
1 stop7h 29mUnited Airlines
Wed 4/911:40 amTUS - ORD
Nonstop3h 30mUnited Airlines
Deal found 2/19$373

Find flights from Illinois to Tucson within your budget

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 February 20, 2025.

Fly from

Illinois

Fly to

Tucson

Route

Depart

Return

Price

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 3/11

6:00 am-11:25 am

1 stop7h 25m

Tucson

Tue 3/18

3:14 pm-11:31 pm

1 stop6h 17m

$317

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Thu 3/13

6:15 am-10:40 am

1 stop6h 25m

Tucson

Wed 3/26

7:00 am-4:34 pm

1 stop7h 34m

$318

PeoriaTucson

PIA - TUS

PIATUS

Greater Peoria

Fri 3/7

4:52 pm-11:45 pm

1 stop7h 53m

Tucson

Tue 3/11

6:30 am-3:01 pm

1 stop6h 31m

$319

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Fri 3/7

5:20 pm-11:03 pm

1 stop6h 43m

Tucson

Tue 3/11

7:00 am-4:39 pm

1 stop7h 39m

$320

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Wed 3/12

10:25 am-6:40 pm

2 stops10h 15m

Tucson

Thu 3/27

3:55 pm-12:35 am

1 stop6h 40m

$322

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 3/25

7:25 am-11:20 am

1 stop5h 55m

Tucson

Fri 3/28

3:56 pm-10:44 pm

1 stop4h 48m

$330

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 3/25

3:11 pm-5:04 pm

2 stops27h 53m

Tucson

Wed 4/2

6:00 am-11:59 pm

1 stop15h 59m

$363

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Wed 3/19

8:37 pm-10:38 pm

Nonstop4h 01m

Tucson

Wed 3/26

5:20 am-10:41 am

Nonstop3h 21m

$367

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Tue 4/1

2:05 pm-11:50 pm

1 stop11h 45m

Tucson

Fri 4/4

11:49 am-12:42 am

1 stop10h 53m

$369

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Mon 3/24

6:30 am-10:59 am

1 stop6h 29m

Tucson

Fri 3/28

11:49 am-12:44 am

1 stop10h 55m

$370

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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.

Travel insights for flights from Illinois to Tucson

Get recent, data-driven insights about flights from Illinois to Tucson including ideal travel times, pricing trends, and more.

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 June is currently the most expensive (average of $469). 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 February 20, 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 February 20, 2025.

The most flights from USIL to TUS are scheduled on a Wednesday (8 on average). You will have fewer flight options on Monday, 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 February 20, 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Comfort

8.1

Entertainment

7.6

Overall

8.1

Boarding

8.2

Food

7.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 $55. Users have also found prices from $144 and $159 on Sun Country Air and Delta, respectively.

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

    While some choose either Chicago Midway - Tucson or Lambert-St Louis - 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 Aer Lingus (69%), Qatar Airways (69%) or British Airways (69%) 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 $183. While the most popular route (Chicago O'Hare Intl - Tucson) can be booked for $193 on average our data indicates $514 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 June is currently the most expensive (average of $469). 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
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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 4 airlines flying from Illinois to Tucson

Discover the top 4 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$208Average$457FlexibilityNo cancel feeOn-time71%
DeltaCheapest$268Average$514FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$268Average$489FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$375Average$475FlexibilityNo cancel feeOn-time63%
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