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Cheap flights from Illinois to Arizona from $59

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 12/15. 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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Find the cheapest flights from Illinois to Arizona

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
10:49 pm - 12:58 amORD-LAS
4h 09mnonstop
Frontier Logo
10:58 pm - 11:35 amLAS-ORD
10h 37m1 stop
$124Frontier
Find Deal
Sun, Jan 4 - Fri, Jan 9
Frontier Logo
12:59 pm - 3:15 pmORD-LAS
4h 16mnonstop
Frontier Logo
12:52 pm - 10:24 pmLAS-ORD
7h 32m1 stop
$125Frontier
Find Deal
Sun, Dec 7 - Thu, Dec 11
Allegiant Air Logo
1:24 pm - 3:16 pmRFD-LAS
3h 52mnonstop
Allegiant Air Logo
7:10 am - 12:34 pmLAS-RFD
3h 24mnonstop
$125Allegiant Air
Find Deal
Sun, Feb 1 - Thu, Feb 5
United Airlines Logo
1:09 pm - 3:28 pmORD-LAS
4h 19mnonstop
United Airlines Logo
5:22 pm - 10:59 pmLAS-ORD
3h 37mnonstop
$131United Airlines
Find Deal
Wed, Feb 18 - Sat, Feb 21
Southwest Logo
7:50 pm - 9:55 pmMDW-LAS
4h 05mnonstop
Southwest Logo
11:40 pm - 5:05 amLAS-MDW
3h 25mnonstop
$131Southwest
Find Deal
Sat, Jan 17 - Tue, Jan 20
Southwest Logo
12:05 pm - 2:00 pmMDW-LAS
3h 55mnonstop
Southwest Logo
4:40 pm - 10:10 pmLAS-MDW
3h 30mnonstop
$136Southwest
Find Deal
Wed, Dec 17 - Wed, Dec 24
Allegiant Air Logo
12:15 pm - 1:56 pmRFD-LAS
3h 41mnonstop
Allegiant Air Logo
7:10 am - 12:34 pmLAS-RFD
3h 24mnonstop
$136Allegiant Air
Find Deal
Sat, Jan 3 - Thu, Jan 8
Alaska Airlines Logo
8:00 am - 3:30 pmORD-TUS
8h 30m1 stop
Alaska Airlines Logo
6:00 am - 2:38 pmTUS-ORD
31h 38m1 stop
$341Alaska Airlines
Find Deal
Thu, Jan 15 - Mon, Jan 19
Alaska Airlines Logo
6:06 pm - 3:30 pmORD-TUS
22h 24m1 stop
Alaska Airlines Logo
6:00 am - 4:33 pmTUS-ORD
9h 33m1 stop
$343Alaska Airlines
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Sun, Feb 1 - Thu, Feb 19
United Airlines Logo
9:07 am - 12:30 pmORD-TUS
4h 23mnonstop
United Airlines Logo
12:00 pm - 9:16 pmTUS-ORD
8h 16m1 stop
$345United Airlines
Find Deal
Wed, Dec 10 - Sat, Dec 13

Allegiant Air flights from Illinois to Arizona

Our best Allegiant Air deals on Illinois to Arizona flight tickets
Allegiant Air
Feb 1
RFD1:24 pmChicago Greater Rockford
3h 52m
LAS3:16 pmLas Vegas Harry Reid Intl
Feb 5
LAS7:10 amLas Vegas Harry Reid Intl
3h 24m
RFD12:34 pmChicago Greater Rockford
$125
Find similar
Allegiant Air
Jan 3
RFD12:15 pmChicago Greater Rockford
3h 41m
LAS1:56 pmLas Vegas Harry Reid Intl
Jan 8
LAS7:10 amLas Vegas Harry Reid Intl
3h 24m
RFD12:34 pmChicago Greater Rockford
$136
Find similar
Allegiant Air
Nov 25
RFD12:07 pmChicago Greater Rockford
3h 45m
LAS1:52 pmLas Vegas Harry Reid Intl
Dec 4
LAS7:10 amLas Vegas Harry Reid Intl
3h 20m
RFD12:30 pmChicago Greater Rockford
$151
Find similar

United Airlines flights from Illinois to Arizona

Our best United Airlines deals on Illinois to Arizona flight tickets
United Airlines
Feb 18
ORD7:25 amChicago O'Hare Intl
4h 15m
LAS9:40 amLas Vegas Harry Reid Intl
Feb 20
LAS5:22 pmLas Vegas Harry Reid Intl
3h 37m
ORD10:59 pmChicago O'Hare Intl
$131
Find similar
United Airlines
Dec 17
ORD12:57 pmChicago O'Hare Intl
4h 09m
LAS3:06 pmLas Vegas Harry Reid Intl
Dec 24
LAS7:00 amLas Vegas Harry Reid Intl
3h 44m
ORD12:44 pmChicago O'Hare Intl
$136
Find similar
United Airlines
Dec 14
ORD4:15 pmChicago O'Hare Intl
4h 09m
LAS6:24 pmLas Vegas Harry Reid Intl
Dec 17
LAS7:15 amLas Vegas Harry Reid Intl
3h 43m
ORD12:58 pmChicago O'Hare Intl
$141
Find similar

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 November 20, 2025.
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

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 1/4

10:49 pm-12:58 am

Nonstop4h 09m

Las Vegas Harry Reid Intl

Fri 1/9

10:58 pm-11:35 am

1 stop10h 37m

$124

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 12/7

12:59 pm-3:15 pm

Nonstop4h 16m

Las Vegas Harry Reid Intl

Thu 12/11

12:52 pm-10:24 pm

1 stop7h 32m

$125

ChicagoLas Vegas

RFD - LAS

RFDLAS

Chicago Greater Rockford

Sun 2/1

1:24 pm-3:16 pm

Nonstop3h 52m

Las Vegas Harry Reid Intl

Thu 2/5

7:10 am-12:34 pm

Nonstop3h 24m

$125

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 2/18

1:09 pm-3:28 pm

Nonstop4h 19m

Las Vegas Harry Reid Intl

Sat 2/21

5:22 pm-10:59 pm

Nonstop3h 37m

$131

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Sat 1/17

7:50 pm-9:55 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Tue 1/20

11:40 pm-5:05 am

Nonstop3h 25m

$131

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Wed 12/17

12:05 pm-2:00 pm

Nonstop3h 55m

Las Vegas Harry Reid Intl

Wed 12/24

4:40 pm-10:10 pm

Nonstop3h 30m

$136

ChicagoLas Vegas

RFD - LAS

RFDLAS

Chicago Greater Rockford

Sat 1/3

12:15 pm-1:56 pm

Nonstop3h 41m

Las Vegas Harry Reid Intl

Thu 1/8

7:10 am-12:34 pm

Nonstop3h 24m

$136

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Thu 1/15

8:00 am-3:30 pm

1 stop8h 30m

Tucson

Mon 1/19

6:00 am-2:38 pm

1 stop31h 38m

$341

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Sun 2/1

6:06 pm-3:30 pm

1 stop22h 24m

Tucson

Thu 2/19

6:00 am-4:33 pm

1 stop9h 33m

$343

ChicagoTucson

ORD - TUS

ORDTUS

Chicago O'Hare Intl

Wed 12/10

9:07 am-12:30 pm

Nonstop4h 23m

Tucson

Sat 12/13

12:00 pm-9:16 pm

1 stop8h 16m

$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 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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $302. 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 $395.

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 in the afternoon. Flights from Illinois to Arizona during this time can be as low as $284. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $372 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 $288 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 $255 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

$87

Fastest flight time

3h 22m

Direct flights

Every day

Airports in Arizona

2 airports
The best one-way flight to Arizona from Illinois in the past 72 hours is $87. The best round-trip flight deal from Illinois to Arizona found on momondo in the last 72 hours is $147.
The fastest flight from Illinois to Arizona takes 3h 22m
Direct flights go from Illinois to Arizona every day.
There are 2 airports near Arizona: Phoenix Sky Harbor Intl (PHX), Las Vegas Harry Reid Intl (LAS)
Search flight deals

  • 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 $69Free CancellationRating
5.8
3,104 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $98Free CancellationRating
6.3
8,156 reviews
Search Spirit Airlines flights
Allegiant AirPriceFrom $116Free CancellationRating
7.2
700 reviews
Search Allegiant Air flights
Alaska AirlinesPriceFrom $154Free CancellationRating
8.0
11,322 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $183Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
American AirlinesPriceFrom $191Free CancellationRating
7.2
11,045 reviews
Search American Airlines flights
SouthwestPriceFrom $206Free CancellationRating
8.0
4,249 reviews
Search Southwest flights
DeltaPriceFrom $236Free CancellationRating
7.9
8,002 reviews
Search Delta 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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