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Cheap flights from Illinois to Arizona from $68

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 Arizona departing on 5/3. 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 Arizona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
12:31 pm - 1:58 pm
MLI
-
LAS
3h 27mnonstop
Allegiant Air Logo
6:25 am - 11:41 am
LAS
-
MLI
3h 16mnonstop
$140Allegiant Air
Sun, Jul 5 - Thu, Jul 9
Allegiant Air Logo
12:31 pm - 1:58 pm
MLI
-
LAS
3h 27mnonstop
Allegiant Air Logo
6:25 am - 11:41 am
LAS
-
MLI
3h 16mnonstop
$154Allegiant Air
Thu, Jul 2 - Sun, Jul 5
Frontier Logo
8:50 am - 2:15 pm
ORD
-
LAS
7h 25m
1 stop
Frontier Logo
12:20 am - 6:08 am
LAS
-
ORD
3h 48mnonstop
$157Frontier
Mon, Apr 27 - Wed, Apr 29
Allegiant Air Logo
12:31 pm - 1:58 pm
MLI
-
LAS
3h 27mnonstop
Allegiant Air Logo
6:25 am - 11:41 am
LAS
-
MLI
3h 16mnonstop
$157Allegiant Air
Thu, Jul 2 - Sun, Jul 5
Frontier Logo
9:37 pm - 7:10 am
ORD
-
LAS
11h 33m
1 stop
Frontier Logo
7:15 am - 11:01 pm
LAS
-
ORD
13h 46m
1 stop
$159Frontier
Sat, May 9 - Tue, May 12
Delta Logo
5:30 am - 12:15 pm
ORD
-
TUS
8h 45m
1 stop
Delta Logo
4:44 pm - 8:36 am
TUS
-
ORD
13h 52m
2 stops
$357Delta
Tue, May 26 - Wed, May 27
American Airlines Logo
10:07 pm - 11:59 pm
ORD
-
TUS
3h 52mnonstop
American Airlines Logo
12:29 pm - 6:16 pm
TUS
-
ORD
3h 47mnonstop
$361American Airlines
Wed, May 20 - Wed, May 27
Delta Logo
11:09 am - 8:47 pm
ORD
-
TUS
11h 38m
2 stops
Delta Logo
4:44 pm - 8:36 am
TUS
-
ORD
13h 52m
2 stops
$362Delta
Wed, May 20 - Wed, May 27
American Airlines Logo
6:00 am - 11:15 am
ORD
-
TUS
7h 15m
1 stop
American Airlines Logo
12:29 pm - 6:16 pm
TUS
-
ORD
3h 47mnonstop
$371American Airlines
Wed, May 20 - Wed, May 27
Southwest Logo
10:30 am - 4:45 pm
ORD
-
TUS
8h 15m
1 stop
Southwest Logo
4:20 pm - 11:55 pm
TUS
-
ORD
5h 35m
1 stop
$381Southwest
Wed, May 20 - Wed, May 27

Allegiant Air flights from Illinois to Arizona

Our best Allegiant Air deals on Illinois to Arizona flight tickets
Allegiant Air
Jul 5
MLI12:31 pmMoline Quad-City
3h 27m
LAS1:58 pmLas Vegas Harry Reid Intl
Jul 9
LAS6:25 amLas Vegas Harry Reid Intl
3h 16m
MLI11:41 amMoline Quad-City
$140
Allegiant Air
Jul 2
MLI12:31 pmMoline Quad-City
3h 27m
LAS1:58 pmLas Vegas Harry Reid Intl
Jul 5
LAS6:25 amLas Vegas Harry Reid Intl
3h 16m
MLI11:41 amMoline Quad-City
$154
Allegiant Air
Jul 2
MLI12:31 pmMoline Quad-City
3h 27m
LAS1:58 pmLas Vegas Harry Reid Intl
Jul 5
LAS6:25 amLas Vegas Harry Reid Intl
3h 16m
MLI11:41 amMoline Quad-City
$157

Frontier flights from Illinois to Arizona

Our best Frontier deals on Illinois to Arizona flight tickets
Frontier
Apr 27
ORD8:50 amChicago O'Hare Intl
7h 25m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Apr 29
LAS12:20 amLas Vegas Harry Reid Intl
3h 48m
ORD6:08 amChicago O'Hare Intl
$157
Frontier
May 9
ORD9:37 pmChicago O'Hare Intl
11h 33m
1 stop
LAS7:10 amLas Vegas Harry Reid Intl
May 13
LAS7:15 amLas Vegas Harry Reid Intl
13h 46m
1 stop
ORD11:01 pmChicago O'Hare Intl
$159
Frontier
Apr 24
ORD8:58 pmChicago O'Hare Intl
4h 27m
LAS11:25 pmLas Vegas Harry Reid Intl
Apr 29
LAS12:20 amLas Vegas Harry Reid Intl
3h 48m
ORD6:08 amChicago O'Hare Intl
$160

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Arizona 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 April 14, 2026.
Use the filters below to find and compare flights from Illinois to Arizona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

MolineLas Vegas

MLI - LAS

MLILAS

Moline Quad-City

Sun 7/5

12:31 pm-1:58 pm

Nonstop3h 27m

Las Vegas Harry Reid Intl

Thu 7/9

6:25 am-11:41 am

Nonstop3h 16m

$140

MolineLas Vegas

MLI - LAS

MLILAS

Moline Quad-City

Thu 7/2

12:31 pm-1:58 pm

Nonstop3h 27m

Las Vegas Harry Reid Intl

Sun 7/5

6:25 am-11:41 am

Nonstop3h 16m

$154

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 4/27

8:50 am-2:15 pm

1 stop7h 25m

Las Vegas Harry Reid Intl

Wed 4/29

12:20 am-6:08 am

Nonstop3h 48m

$157

MolineLas Vegas

MLI - LAS

MLILAS

Moline Quad-City

Thu 7/2

12:31 pm-1:58 pm

Nonstop3h 27m

Las Vegas Harry Reid Intl

Sun 7/5

6:25 am-11:41 am

Nonstop3h 16m

$157

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 5/9

9:37 pm-7:10 am

1 stop11h 33m

Las Vegas Harry Reid Intl

Tue 5/12

7:15 am-11:01 pm

1 stop13h 46m

$159

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Tue 5/26

5:30 am-12:15 pm

1 stop8h 45m

Tucson

Wed 5/27

4:44 pm-8:36 am

2 stops13h 52m

$357

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Wed 5/20

10:07 pm-11:59 pm

Nonstop3h 52m

Tucson

Wed 5/27

12:29 pm-6:16 pm

Nonstop3h 47m

$361

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Wed 5/20

11:09 am-8:47 pm

2 stops11h 38m

Tucson

Wed 5/27

4:44 pm-8:36 am

2 stops13h 52m

$362

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Wed 5/20

6:00 am-11:15 am

1 stop7h 15m

Tucson

Wed 5/27

12:29 pm-6:16 pm

Nonstop3h 47m

$371

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Wed 5/20

10:30 am-4:45 pm

1 stop8h 15m

Tucson

Wed 5/27

4:20 pm-11:55 pm

1 stop5h 35m

$381

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 Arizona from

How to get the cheapest flight ticket from Illinois to Arizona

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 Arizona?

The month of August is, on average, the cheapest month to fly to Arizona from Illinois, with most prices found around $229. If you aren’t able to travel to Arizona during the month of August, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $229.

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

On average, the least expensive day to fly to Arizona from Illinois is on a Saturday. momondo users have found tickets for Saturday departures for as low as $292. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Arizona is Sunday, with ticket prices averaging around $355.

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

Our most recent data shows that the best time of day to fly to Arizona is at noon. Flights from Illinois to Arizona during this time can be as low as $299. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $319 on average. Flights to Arizona from Illinois in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Arizona flight route?

Fly from Chicago Midway to Phoenix Sky Harbor Intl for the best Illinois - Arizona flight prices

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

You are more likely to see cheaper flights to Arizona from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Arizona for around $284 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Arizona from Illinois for as low as $248 on momondo.

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

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

No. A direct flight is the cheapest option for a flight between Illinois to Arizona.

Cheap Illinois to Arizona flight deals and tips

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

Best Price Found

$55

Fastest flight time

3h 10m

Direct flights

Every day

Airports in Arizona

66 airports
The best one-way flight to Arizona from Illinois in the past 72 hours is $55. The best round-trip flight deal from Illinois to Arizona found on momondo in the last 72 hours is $161.
The fastest flight from Illinois to Arizona takes 3h 10m
Direct flights go from Illinois to Arizona every day.
There are 66 airports in Arizona. From Illinois there are direct flights to Phoenix Sky Harbor Intl (PHX), Phoenix-Mesa Gateway (AZA), Las Vegas Harry Reid Intl (LAS).
Search flight deals

Frequently asked questions about flying from Illinois to Arizona

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

    Prices for flights from Illinois to Arizona were last updated today.

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

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

    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 Arizona.

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

    The travel and health documents you'll need for your trip to Arizona 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 Arizona. 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 Illinois to Arizona?

Best airlines flying from Illinois to Arizona

Compare and see reviews for airlines that fly from Illinois to Arizona with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $66Free CancellationRating
5.6
2,994 reviews
Search Frontier flights
Allegiant AirPriceFrom $79Free CancellationRating
7.3
707 reviews
Search Allegiant Air flights
DeltaPriceFrom $108Free CancellationRating
7.9
8,405 reviews
Search Delta flights
Alaska AirlinesPriceFrom $154Free CancellationRating
7.9
12,234 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $182Free CancellationRating
7.4
9,581 reviews
Search United Airlines flights
JetBluePriceFrom $184Free CancellationRating
7.2
2,933 reviews
Search JetBlue flights
American AirlinesPriceFrom $196Free CancellationRating
7.1
11,574 reviews
Search American Airlines flights
SouthwestPriceFrom $204Free CancellationRating
8.0
4,328 reviews
Search Southwest flights

Why use momondo?

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

It is quick and easy to find Illinois to Arizona flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Arizona that suits you.

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

Flights from Illinois to Arizona with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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

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

Yes momondo offers price alerts on flights to Arizona from Illinois. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Arizona trip

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