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Cheap flights from Arizona to Illinois from $91

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Arizona to Illinois departing on 6/3. 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 Arizona to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
11:20 pm - 5:07 am
LAS
-
ORD
3h 47mnonstop
Frontier Logo
7:15 am - 9:18 am
ORD
-
LAS
4h 03mnonstop
$175Frontier
Tue, Jun 23 - Sat, Jul 11
Frontier Logo
11:20 pm - 5:07 am
LAS
-
ORD
3h 47mnonstop
Frontier Logo
7:15 am - 9:18 am
ORD
-
LAS
4h 03mnonstop
$176Frontier
Thu, Jul 2 - Wed, Jul 8
Allegiant Air Logo
2:59 pm - 8:05 pm
AZA
-
RFD
3h 06mnonstop
Allegiant Air Logo
1:01 pm - 2:36 pm
RFD
-
AZA
3h 35mnonstop
$193Allegiant Air
Wed, May 27 - Sat, May 30
Allegiant Air Logo
7:05 am - 12:14 pm
AZA
-
RFD
3h 09mnonstop
Allegiant Air Logo
8:50 pm - 10:14 pm
RFD
-
AZA
3h 24mnonstop
$202Allegiant Air
Sat, Jun 20 - Wed, Jun 24
Delta Logo
4:47 pm - 11:18 pm
TUS
-
ORD
28h 31m
1 stop
Delta Logo
6:30 pm - 11:11 am
ORD
-
TUS
18h 41m
1 stop
$345Delta
Tue, Jul 14 - Tue, Jul 21
Delta Logo
4:47 pm - 11:32 am
TUS
-
ORD
16h 45m
2 stops
Delta Logo
6:30 am - 8:59 pm
ORD
-
TUS
16h 29m
2 stops
$355Delta
Tue, Jul 7 - Wed, Jul 15
American Airlines Logo
12:40 pm - 6:27 pm
TUS
-
ORD
3h 47mnonstop
American Airlines Logo
9:09 pm - 11:01 pm
ORD
-
TUS
3h 52mnonstop
$357American Airlines
Tue, Jun 2 - Tue, Jun 9
American Airlines Logo
12:35 pm - 6:31 pm
TUS
-
ORD
3h 56mnonstop
American Airlines Logo
9:00 pm - 10:43 pm
ORD
-
TUS
3h 43mnonstop
$358American Airlines
Tue, Jul 21 - Wed, Jul 29
Southwest Logo
4:55 pm - 12:05 am
TUS
-
MDW
5h 10m
1 stop
Southwest Logo
5:30 am - 9:15 am
MDW
-
TUS
5h 45m
1 stop
$377Southwest
Tue, Jun 16 - Tue, Jun 23
Southwest Logo
12:45 pm - 8:10 pm
TUS
-
STL
5h 25m
1 stop
Southwest Logo
5:20 pm - 10:45 pm
STL
-
TUS
7h 25m
2 stops
$380Southwest
Wed, Jun 3 - Tue, Jun 9

Frontier flights from Arizona to Illinois

Our best Frontier deals on Arizona to Illinois flight tickets
Frontier
Aug 12
LAS9:15 amLas Vegas Harry Reid Intl
11h 50m
1 stop
ORD11:05 pmChicago O'Hare Intl
Aug 17
ORD7:15 amChicago O'Hare Intl
4h 03m
LAS9:18 amLas Vegas Harry Reid Intl
$174
Frontier
Aug 13
LAS11:40 pmLas Vegas Harry Reid Intl
3h 48m
ORD5:28 amChicago O'Hare Intl
Aug 18
ORD1:50 pmChicago O'Hare Intl
8h 49m
1 stop
LAS8:39 pmLas Vegas Harry Reid Intl
$175
Frontier
Jul 2
LAS11:20 pmLas Vegas Harry Reid Intl
3h 47m
ORD5:07 amChicago O'Hare Intl
Jul 8
ORD7:15 amChicago O'Hare Intl
4h 03m
LAS9:18 amLas Vegas Harry Reid Intl
$176

Alaska Airlines flights from Arizona to Illinois

Our best Alaska Airlines deals on Arizona to Illinois flight tickets
Alaska Airlines
Oct 6
PHX10:12 amPhoenix Sky Harbor Intl
6h 41m
1 stop
ORD6:53 pmChicago O'Hare Intl
Oct 13
ORD7:49 pmChicago O'Hare Intl
15h 37m
1 stop
PHX9:26 amPhoenix Sky Harbor Intl
$255
Alaska Airlines
May 24
PHX7:20 amPhoenix Sky Harbor Intl
9h 30m
1 stop
ORD6:50 pmChicago O'Hare Intl
May 27
ORD2:10 pmChicago O'Hare Intl
7h 00m
1 stop
PHX7:10 pmPhoenix Sky Harbor Intl
$275
Alaska Airlines
May 24
PHX7:20 amPhoenix Sky Harbor Intl
9h 30m
1 stop
ORD6:50 pmChicago O'Hare Intl
May 27
ORD2:10 pmChicago O'Hare Intl
7h 00m
1 stop
PHX7:10 pmPhoenix Sky Harbor Intl
$312

momondo Fare Finder

 
Customize your flight search to find flights from Arizona 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 May 12, 2026.
Use the filters below to find and compare flights from Arizona to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Tue 6/23

11:20 pm-5:07 am

Nonstop3h 47m

Chicago O'Hare Intl

Sat 7/11

7:15 am-9:18 am

Nonstop4h 03m

$175

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Thu 7/2

11:20 pm-5:07 am

Nonstop3h 47m

Chicago O'Hare Intl

Wed 7/8

7:15 am-9:18 am

Nonstop4h 03m

$176

PhoenixChicago

AZA - RFD

AZARFD

Phoenix-Mesa Gateway

Wed 5/27

2:59 pm-8:05 pm

Nonstop3h 06m

Chicago Greater Rockford

Sat 5/30

1:01 pm-2:36 pm

Nonstop3h 35m

$193
Quickest round-trip

PhoenixChicago

AZA - RFD

AZARFD

Phoenix-Mesa Gateway

Sat 6/20

7:05 am-12:14 pm

Nonstop3h 09m

Chicago Greater Rockford

Wed 6/24

8:50 pm-10:14 pm

Nonstop3h 24m

$202

TucsonChicago

TUS - ORD

TUSORD

Tucson

Tue 7/14

4:47 pm-11:18 pm

1 stop28h 31m

Chicago O'Hare Intl

Tue 7/21

6:30 pm-11:11 am

1 stop18h 41m

$345

TucsonChicago

TUS - ORD

TUSORD

Tucson

Tue 7/7

4:47 pm-11:32 am

2 stops16h 45m

Chicago O'Hare Intl

Wed 7/15

6:30 am-8:59 pm

2 stops16h 29m

$355

TucsonChicago

TUS - ORD

TUSORD

Tucson

Tue 6/2

12:40 pm-6:27 pm

Nonstop3h 47m

Chicago O'Hare Intl

Tue 6/9

9:09 pm-11:01 pm

Nonstop3h 52m

$357

TucsonChicago

TUS - ORD

TUSORD

Tucson

Tue 7/21

12:35 pm-6:31 pm

Nonstop3h 56m

Chicago O'Hare Intl

Wed 7/29

9:00 pm-10:43 pm

Nonstop3h 43m

$358

TucsonChicago

TUS - MDW

TUSMDW

Tucson

Tue 6/16

4:55 pm-12:05 am

1 stop5h 10m

Chicago Midway

Tue 6/23

5:30 am-9:15 am

1 stop5h 45m

$377

TucsonSt. Louis

TUS - STL

TUSSTL

Tucson

Wed 6/3

12:45 pm-8:10 pm

1 stop5h 25m

Lambert-St Louis

Tue 6/9

5:20 pm-10:45 pm

2 stops7h 25m

$380

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 Arizona 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 Arizona is in September. Flight prices, which tend to average around $265, 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 September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $274.

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

The cheapest day to depart from Arizona to Illinois is on a Thursday when prices can be found for as low as $343. Flights from Arizona to Illinois on a Sunday will generally be more expensive and average around $515. 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 in the afternoon. Flights from Arizona to Illinois during this time can be as low as $308. Flights in the morning are often more expensive with an average ticket price of $422.

What is the cheapest Arizona to Illinois flight route?

Fly from Phoenix-Mesa Gateway to Moline Quad-City for the best Arizona - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Arizona when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $277 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Arizona for as low as $232 on momondo.

Can stopping save me money on Arizona to Illinois flights?

You could potentially save up to 3% on your flight if you consider stops on a Arizona to Illinois flight.

Cheap Arizona to Illinois flight deals and tips

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

Best Price Found

$111

Fastest flight time

2h 50m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Arizona in the past 72 hours is $111. The best round-trip flight deal from Arizona to Illinois found on momondo in the last 72 hours is $143.
The fastest flight from Arizona to Illinois takes 2h 50m
Direct flights go from Arizona to Illinois every day.
There are 98 airports in Illinois. From Arizona there are direct flights to Chicago Greater Rockford (RFD), Chicago Midway (MDW), Lambert-St Louis (STL).
Search flight deals

Frequently asked questions about flying from Arizona to Illinois

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

    Prices for flights from Arizona to Illinois refresh daily.

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

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

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

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Arizona to Illinois

Compare and see reviews for airlines that fly from Arizona to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $64Free CancellationRating
5.6
2,952 reviews
Search Frontier flights
Allegiant AirPriceFrom $93Free CancellationRating
7.3
708 reviews
Search Allegiant Air flights
JetBluePriceFrom $158Free CancellationRating
7.1
2,972 reviews
Search JetBlue flights
SouthwestPriceFrom $187Free CancellationRating
7.9
4,297 reviews
Search Southwest flights
United AirlinesPriceFrom $187Free CancellationRating
7.4
9,704 reviews
Search United Airlines flights
American AirlinesPriceFrom $197Free CancellationRating
7.1
11,665 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $210Free CancellationRating
7.9
12,353 reviews
Search Alaska Airlines flights

Why use momondo?

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

Finding the right flight to Illinois from Arizona is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

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

Flights from Arizona to Illinois 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 Arizona to Illinois?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Arizona to Illinois.

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

If you are not ready to book a flight from Arizona 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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