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Cheap flights from Illinois to Tucson from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Tucson departing on 10/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Illinois to Tucson

Cheap round-trip flights

Frontier Logo
2:42 pm - 12:35 pmSTL-TUS
23h 53m1 stop
Frontier Logo
9:21 am - 5:27 pmTUS-STL
7h 06m1 stop
$164Frontier
Find Deal
Thu, Oct 30 - Thu, Nov 6
Frontier Logo
7:52 pm - 10:57 amSTL-TUS
17h 05m1 stop
Frontier Logo
12:24 pm - 9:04 pmTUS-STL
6h 40m1 stop
$194Frontier
Find Deal
Sat, Oct 18 - Mon, Oct 20
American Airlines Logo
5:00 am - 12:19 pmORD-TUS
8h 19m1 stop
American Airlines Logo
1:45 pm - 6:21 pmTUS-ORD
3h 36mnonstop
$256American Airlines
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Thu, Nov 13 - Thu, Nov 13
American Airlines Logo
3:37 pm - 9:17 pmMLI-TUS
6h 40m1 stop
American Airlines Logo
2:35 pm - 10:59 pmTUS-MLI
7h 24m1 stop
$269American Airlines
Find Deal
Wed, Nov 12 - Wed, Dec 3
Multiple Airlines Logo
10:00 am - 11:54 pmORD-TUS
14h 54m1 stop
Multiple Airlines Logo
2:20 pm - 9:48 pmTUS-ORD
6h 28m1 stop
$270Multiple Airlines
Find Deal
Wed, Nov 5 - Mon, Nov 10
Multiple Airlines Logo
2:37 pm - 1:35 pmORD-TUS
23h 58m2 stops
Multiple Airlines Logo
2:20 pm - 6:25 amTUS-ORD
15h 05m1 stop
$271Multiple Airlines
Find Deal
Thu, Nov 6 - Mon, Nov 10
Delta Logo
5:30 pm - 9:25 pmSTL-TUS
5h 55m1 stop
Delta Logo
5:28 pm - 12:46 amTUS-STL
6h 18m1 stop
$287Delta
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Sat, Oct 25 - Tue, Nov 11
United Airlines Logo
12:25 pm - 8:25 pmSTL-TUS
10h 00m2 stops
United Airlines Logo
1:40 pm - 9:54 pmTUS-STL
6h 14m1 stop
$292United Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
Delta Logo
2:20 pm - 10:37 pmSTL-TUS
9h 17m1 stop
Delta Logo
6:45 am - 1:30 pmTUS-STL
5h 45m1 stop
$309Delta
Find Deal
Thu, Dec 4 - Tue, Dec 9
United Airlines Logo
9:00 am - 3:51 pmSTL-TUS
7h 51m1 stop
United Airlines Logo
2:33 pm - 8:57 pmTUS-STL
5h 24m1 stop
$323United Airlines
Find Deal
Tue, Dec 2 - Thu, Dec 11

American Airlines flights from Illinois to Tucson

Our best American Airlines deals on Illinois to Tucson flight tickets
American Airlines
Nov 13
ORD5:00 amChicago O'Hare Intl
8h 19m
1 stop
TUS12:19 pmTucson
Nov 13
TUS1:45 pmTucson
3h 36m
ORD6:21 pmChicago O'Hare Intl
$256
Find similar
American Airlines
Nov 12
MLI3:37 pmMoline Quad-City
6h 40m
1 stop
TUS9:17 pmTucson
Dec 3
TUS2:35 pmTucson
7h 24m
1 stop
MLI10:59 pmMoline Quad-City
$269
Find similar
American Airlines
Nov 12
MLI11:10 amMoline Quad-City
10h 09m
2 stops
TUS8:19 pmTucson
Dec 3
TUS4:54 pmTucson
5h 05m
1 stop
MLI10:59 pmMoline Quad-City
$274
Find similar

United Airlines flights from Illinois to Tucson

Our best United Airlines deals on Illinois to Tucson flight tickets
United Airlines
Oct 21
STL12:25 pmLambert-St Louis
10h 00m
2 stops
TUS8:25 pmTucson
Oct 28
TUS1:40 pmTucson
6h 14m
1 stop
STL9:54 pmLambert-St Louis
$292
Find similar
United Airlines
Dec 2
STL9:00 amLambert-St Louis
7h 51m
1 stop
TUS3:51 pmTucson
Dec 11
TUS2:33 pmTucson
5h 24m
1 stop
STL8:57 pmLambert-St Louis
$323
Find similar
United Airlines
Mar 7
PIA5:20 pmGreater Peoria
6h 05m
1 stop
TUS10:25 pmTucson
Mar 10
TUS11:35 amTucson
7h 11m
1 stop
PIA8:46 pmGreater Peoria
$349
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated September 25, 2025.
Use the filters below to find and compare flights from Illinois to Tucson that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Thu 10/30

2:42 pm-12:35 pm

1 stop23h 53m

Tucson

Thu 11/6

9:21 am-5:27 pm

1 stop7h 06m

$164

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Sat 10/18

7:52 pm-10:57 am

1 stop17h 05m

Tucson

Mon 10/20

12:24 pm-9:04 pm

1 stop6h 40m

$194

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Thu 11/13

5:00 am-12:19 pm

1 stop8h 19m

Tucson

Thu 11/13

1:45 pm-6:21 pm

Nonstop3h 36m

$256

MolineTucson

MLI - TUS

MLITUS

Moline Quad-City

Wed 11/12

3:37 pm-9:17 pm

1 stop6h 40m

Tucson

Wed 12/3

2:35 pm-10:59 pm

1 stop7h 24m

$269

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Wed 11/5

10:00 am-11:54 pm

1 stop14h 54m

Tucson

Mon 11/10

2:20 pm-9:48 pm

1 stop6h 28m

$270

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Thu 11/6

2:37 pm-1:35 pm

2 stops23h 58m

Tucson

Mon 11/10

2:20 pm-6:25 am

1 stop15h 05m

$271

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Sat 10/25

5:30 pm-9:25 pm

1 stop5h 55m

Tucson

Tue 11/11

5:28 pm-12:46 am

1 stop6h 18m

$287

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 10/21

12:25 pm-8:25 pm

2 stops10h 00m

Tucson

Tue 10/28

1:40 pm-9:54 pm

1 stop6h 14m

$292

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Thu 12/4

2:20 pm-10:37 pm

1 stop9h 17m

Tucson

Tue 12/9

6:45 am-1:30 pm

1 stop5h 45m

$309

St. LouisTucson

STL - TUS

STLTUS

Lambert-St Louis

Tue 12/2

9:00 am-3:51 pm

1 stop7h 51m

Tucson

Thu 12/11

2:33 pm-8:57 pm

1 stop5h 24m

$323

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 Tucson from

How to get the cheapest flight ticket from Illinois to Tucson

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 Tucson?

In general, August is the cheapest month to fly from Illinois to Tucson. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $390. If you don’t want to visit Tucson in August, then you should wait until July to fly from Illinois, when ticket prices are also cheap, with an average price of $391.

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

According to our data, Wednesday is the cheapest day to fly to Tucson from Illinois. The lowest ticket price found for a Wednesday departure recently was $428. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Tucson for around $517.

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

In the afternoon is the cheapest time of day to fly from Illinois to Tucson when you can find flight prices for as low as $431. Flying to Tucson in the afternoon is an ideal time because this is during off-peak travel hours. Flights at noon are often more expensive with an average ticket price of $564.

What is the cheapest Illinois to Tucson flight route?

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

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

You are more likely to see cheaper flights to Tucson from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Tucson for around $445 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tucson from Illinois for as low as $391 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Tucson 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 Illinois to Tucson flights?

You could potentially save up to 38% on your flight if you consider stops on a Illinois to Tucson flight.

Cheap Illinois to Tucson flight deals and tips

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

Best Price Found

$123

Fastest flight time

3h 40m

Direct flights

Every day

Airports in Tucson

1 airport
The best one-way flight to Tucson from Illinois in the past 72 hours is $123. The best round-trip flight deal from Illinois to Tucson found on momondo in the last 72 hours is $341.
The fastest flight from Illinois to Tucson takes 3h 40m
Direct flights go from Illinois to Tucson every day.
There is 1 airport near Tucson: Tucson (TUS)
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  • When did momondo last update prices for flights from Illinois to Tucson Airport?

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Tucson Airport.

  • What documentation or ID do you need to fly to Tucson Airport?

    The required travel and health documents for your Tucson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Tucson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Illinois to Tucson

Compare and see reviews for airlines that fly from Illinois to Tucson with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $109Free CancellationRating
5.8
3,162 reviews
Search Frontier flights
American AirlinesPriceFrom $208Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $286Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.9
7,973 reviews
Search Delta flights
SouthwestPriceFrom $317Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Traveling to a place near Tucson?

Book flights to Tucson if you plan to visit one of these locations
Tombstone
Bisbee
Sierra Vista
Oro Valley
Green Valley
Nogales
Douglas

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Tucson from Illinois.

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

All flight searches from Illinois to Tucson on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Illinois to Tucson flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

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