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Cheap flights from Tucson to Illinois from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Tucson to Illinois departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Tucson to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:12 pm - 12:50 pm
TUS
-
STL
23h 38m1 stop
Frontier Logo
3:46 pm - 11:17 am
STL
-
TUS
20h 31m1 stop
$129Frontier
Sun, Jan 25 - Sat, Jan 31
Frontier Logo
9:59 pm - 9:32 pm
TUS
-
ORD
22h 33m1 stop
Frontier Logo
10:41 pm - 3:23 pm
ORD
-
TUS
17h 42m1 stop
$191Frontier
Thu, Jan 8 - Thu, Jan 15
Multiple Airlines Logo
4:18 pm - 11:22 am
TUS
-
ORD
18h 04m2 stops
Multiple Airlines Logo
10:41 pm - 4:42 pm
ORD
-
TUS
19h 01m1 stop
$242Multiple Airlines
Fri, Jan 16 - Sun, Jan 18
American Airlines Logo
5:56 pm - 11:50 pm
TUS
-
STL
4h 54m1 stop
American Airlines Logo
5:14 am - 9:47 am
STL
-
TUS
5h 33m1 stop
$243American Airlines
Sat, Feb 14 - Wed, Feb 18
Multiple Airlines Logo
9:59 pm - 9:32 pm
TUS
-
ORD
22h 33m1 stop
Multiple Airlines Logo
7:20 am - 8:48 am
ORD
-
TUS
26h 28m2 stops
$255Multiple Airlines
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
2:46 pm - 11:18 pm
TUS
-
STL
7h 32m2 stops
American Airlines Logo
11:46 am - 6:40 pm
STL
-
TUS
7h 54m1 stop
$288American Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
10:41 am - 9:13 pm
TUS
-
STL
9h 32m2 stops
United Airlines Logo
6:00 am - 11:53 am
STL
-
TUS
6h 53m1 stop
$292United Airlines
Wed, Jan 7 - Wed, Jan 14
Southwest Logo
12:20 pm - 4:30 pm
TUS
-
MDW
3h 10mnonstop
Southwest Logo
7:30 pm - 10:25 pm
MDW
-
TUS
3h 55mnonstop
$335Southwest
Sat, Jan 10 - Sat, Jan 17
United Airlines Logo
2:32 pm - 8:34 pm
TUS
-
MLI
5h 02m1 stop
United Airlines Logo
10:47 am - 4:37 pm
MLI
-
TUS
6h 50m1 stop
$337United Airlines
Wed, Jan 7 - Sat, Jan 10
Southwest Logo
7:40 am - 4:30 pm
TUS
-
MDW
7h 50m1 stop
Southwest Logo
7:30 pm - 10:25 pm
MDW
-
TUS
3h 55mnonstop
$345Southwest
Sat, Jan 10 - Sat, Jan 17

Frontier flights from Tucson to Illinois

Our best Frontier deals on Tucson to Illinois flight tickets
Frontier
Jan 25
TUS12:12 pmTucson
23h 38m
1 stop
STL12:50 pmLambert-St Louis
Jan 31
STL3:46 pmLambert-St Louis
20h 31m
1 stop
TUS11:17 amTucson
$129
Find similar
Frontier
Jan 8
TUS9:59 pmTucson
22h 33m
1 stop
ORD9:32 pmChicago O'Hare Intl
Jan 15
ORD10:41 pmChicago O'Hare Intl
17h 42m
1 stop
TUS3:23 pmTucson
$191
Find similar
Frontier
Jan 25
TUS9:59 pmTucson
21h 51m
1 stop
STL8:50 pmLambert-St Louis
Jan 31
STL3:46 pmLambert-St Louis
25h 48m
2 stops
TUS4:34 pmTucson
$215
Find similar

American Airlines flights from Tucson to Illinois

Our best American Airlines deals on Tucson to Illinois flight tickets
American Airlines
Feb 14
TUS5:56 pmTucson
4h 54m
1 stop
STL11:50 pmLambert-St Louis
Feb 18
STL5:14 amLambert-St Louis
5h 33m
1 stop
TUS9:47 amTucson
$243
Find similar
American Airlines
Feb 14
TUS2:46 pmTucson
7h 32m
2 stops
STL11:18 pmLambert-St Louis
Feb 18
STL11:46 amLambert-St Louis
7h 54m
1 stop
TUS6:40 pmTucson
$288
Find similar
American Airlines
Jan 28
TUS6:25 amTucson
7h 18m
2 stops
STL2:43 pmLambert-St Louis
Feb 4
STL2:38 pmLambert-St Louis
8h 09m
1 stop
TUS9:47 pmTucson
$300
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 11, 2025.
Use the filters below to find and compare flights from Tucson to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sun 1/25

12:12 pm-12:50 pm

1 stop23h 38m

Lambert-St Louis

Sat 1/31

3:46 pm-11:17 am

1 stop20h 31m

$129

TucsonChicago

TUS - ORD

TUSORD

Tucson

Thu 1/8

9:59 pm-9:32 pm

1 stop22h 33m

Chicago O'Hare Intl

Thu 1/15

10:41 pm-3:23 pm

1 stop17h 42m

$191

TucsonChicago

TUS - ORD

TUSORD

Tucson

Fri 1/16

4:18 pm-11:22 am

2 stops18h 04m

Chicago O'Hare Intl

Sun 1/18

10:41 pm-4:42 pm

1 stop19h 01m

$242

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 2/14

5:56 pm-11:50 pm

1 stop4h 54m

Lambert-St Louis

Wed 2/18

5:14 am-9:47 am

1 stop5h 33m

$243

TucsonChicago

TUS - ORD

TUSORD

Tucson

Thu 1/8

9:59 pm-9:32 pm

1 stop22h 33m

Chicago O'Hare Intl

Thu 1/15

7:20 am-8:48 am

2 stops26h 28m

$255

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Sat 2/14

2:46 pm-11:18 pm

2 stops7h 32m

Lambert-St Louis

Wed 2/18

11:46 am-6:40 pm

1 stop7h 54m

$288

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 1/7

10:41 am-9:13 pm

2 stops9h 32m

Lambert-St Louis

Wed 1/14

6:00 am-11:53 am

1 stop6h 53m

$292

TucsonChicago

TUS - MDW

TUSMDW

Tucson

Sat 1/10

12:20 pm-4:30 pm

Nonstop3h 10m

Chicago Midway

Sat 1/17

7:30 pm-10:25 pm

Nonstop3h 55m

$335

TucsonMoline

TUS - MLI

TUSMLI

Tucson

Wed 1/7

2:32 pm-8:34 pm

1 stop5h 02m

Moline Quad-City

Sat 1/10

10:47 am-4:37 pm

1 stop6h 50m

$337

TucsonChicago

TUS - MDW

TUSMDW

Tucson

Sat 1/10

7:40 am-4:30 pm

1 stop7h 50m

Chicago Midway

Sat 1/17

7:30 pm-10:25 pm

Nonstop3h 55m

$345

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Tucson to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Tucson is in August. Flight prices, which tend to average around $320, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of August, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $370.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Tucson to Illinois is on a Thursday when prices can be found for as low as $472. Flights from Tucson to Illinois on a Sunday will generally be more expensive and average around $603. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is at noon. Flights from Tucson to Illinois during this time can be as low as $480. Flights in the afternoon are often more expensive with an average ticket price of $711.

What is the cheapest Tucson to Illinois flight route?

Fly from Tucson to Chicago Midway for the best Tucson - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Tucson when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $427 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Tucson for as low as $327 on momondo.

What cabin class options are available on Tucson to Illinois flights?

There are 4 cabin classes available to choose from on Tucson to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Tucson to Illinois flights?

You could potentially save up to 33% on your flight if you consider stops on a Tucson to Illinois flight.

Cheap Tucson to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Tucson to Illinois

Best Price Found

$202

Fastest flight time

3h 10m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Tucson in the past 72 hours is $202. The best round-trip flight deal from Tucson to Illinois found on momondo in the last 72 hours is $405.
The fastest flight from Tucson to Illinois takes 3h 10m
Direct flights go from Tucson to Illinois every day.
There are 98 airports in Illinois. From Tucson there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).
Search flight deals

  • When did momondo last update prices for flights from Tucson Airport to Illinois?

    Prices for flights from Tucson Airport to Illinois are updated daily.

  • How many operators does momondo search for flights from Tucson Airport to Illinois?

  • How old do you have to be to fly from Tucson Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Tucson Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Tucson to Illinois?

Best airlines flying from Tucson to Illinois

Compare and see reviews for airlines that fly from Tucson to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $130Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
United AirlinesPriceFrom $270Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
SouthwestPriceFrom $300Free CancellationRating
7.9
4,252 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Tucson to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Tucson to Illinois for you.

Can I find flights from Tucson to Illinois with flexible booking policies on momondo?

momondo does allow users to show only those flights to Illinois from Tucson which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Tucson to Illinois?

momondo provides multiple filters to help you find the best flight to Illinois from Tucson. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Tucson to Illinois right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Tucson to Illinois now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Illinois and let you know when they change.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Illinois

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