How long is the flight from Arizona to Illinois?

The flight from Arizona to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Tucson (a popular airport in Arizona) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 3h 21m on average. If you fly from Phoenix (another popular airport in Arizona) to Chicago O'Hare Intl Airport, then the average flight time is 3h 23m.

What is the cheapest airline that flies from Arizona to Illinois?

Frontier, Southwest, and Spirit Airlines are the most popular carriers operating from Arizona to Illinois

How many flights depart from Arizona to Illinois on average per day?

As of September 2025, 133 flights take off from Arizona and land in Illinois each day. The most common flight departure time for this route is 12:00PM, with 53% of daily flights taking off at noon.

What airlines fly to Illinois?

American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Illinois from Arizona according to our data. American Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from Arizona to Illinois on average per week?

As of September 2025, there are 935 flights per week flying from Arizona to Illinois. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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?

As of September 2025, there are 7 operators available to choose from 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.

$60 Cheap Flights from Arizona to Illinois in 2025/26

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Find the cheapest flights from Arizona to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:20 am - 11:43 amLAS-STL

3h 23mnonstop

9:59 pm - 11:37 pmSTL-LAS

3h 38mnonstop

$77Frontier

Find Deal

Fri, Oct 10 - Mon, Oct 13

8:34 am - 1:53 pmLAS-STL

3h 19mnonstop

2:38 pm - 4:16 pmSTL-LAS

3h 38mnonstop

$103Frontier

Find Deal

Fri, Sep 26 - Mon, Sep 29

2:56 pm - 8:06 pmAZA-RFD

3h 10mnonstop

2:05 pm - 4:38 pmRFD-AZA

3h 33mnonstop

$145Allegiant Air

Find Deal

Wed, Oct 15 - Wed, Nov 19

1:45 pm - 5:50 pmAZA-RFD

3h 05mnonstop

2:05 pm - 4:38 pmRFD-AZA

3h 33mnonstop

$152Allegiant Air

Find Deal

Fri, Nov 14 - Wed, Nov 19

4:55 pm - 10:35 pmLAS-ORD

3h 40mnonstop

7:15 am - 9:20 amORD-LAS

4h 05mnonstop

$153Southwest

Find Deal

Wed, Dec 10 - Sun, Dec 14

11:55 pm - 5:45 amLAS-ORD

3h 50mnonstop

7:15 am - 9:25 amORD-LAS

4h 10mnonstop

$159American Airlines

Find Deal

Thu, Nov 6 - Sun, Nov 9

8:30 am - 2:05 pmLAS-MDW

3h 35mnonstop

6:05 am - 8:00 amMDW-LAS

3h 55mnonstop

$159Southwest

Find Deal

Wed, Oct 22 - Wed, Oct 29

7:00 pm - 12:30 amPHX-ORD

3h 30mnonstop

8:40 pm - 10:36 pmORD-PHX

3h 56mnonstop

$182American Airlines

Find Deal

Mon, Oct 6 - Tue, Oct 7

10:50 am - 4:29 pmPHX-ORD

3h 39mnonstop

5:01 am - 9:28 amORD-PHX

6h 27m1 stop

$183United Airlines

Find Deal

Sat, Oct 11 - Sat, Oct 18

9:00 am - 4:43 pmPHX-PIA

5h 43m1 stop

8:39 am - 2:52 pmPIA-PHX

8h 13m1 stop

$251United Airlines

Find Deal

Sat, Oct 11 - Sat, Oct 18

Spirit Airlines flights from Arizona to Illinois

Our best Spirit Airlines deals on Arizona to Illinois flight tickets

Spirit Airlines

Oct 2

LAS3:54 pmLas Vegas Harry Reid Intl

3h 42m

ORD9:36 pmChicago O'Hare Intl

Oct 7

ORD6:40 amChicago O'Hare Intl

3h 54m

LAS8:34 amLas Vegas Harry Reid Intl

$113

Find similar

Spirit Airlines

Sep 26

LAS3:50 pmLas Vegas Harry Reid Intl

3h 42m

ORD9:32 pmChicago O'Hare Intl

Sep 30

ORD9:00 amChicago O'Hare Intl

4h 05m

LAS11:05 amLas Vegas Harry Reid Intl

$114

Find similar

Spirit Airlines

Sep 27

LAS6:15 amLas Vegas Harry Reid Intl

3h 36m

ORD11:51 amChicago O'Hare Intl

Sep 29

ORD6:05 pmChicago O'Hare Intl

4h 06m

LAS8:11 pmLas Vegas Harry Reid Intl

$118

Find similar

Frontier flights from Arizona to Illinois

Our best Frontier deals on Arizona to Illinois flight tickets

Frontier

Oct 10

LAS6:20 amLas Vegas Harry Reid Intl

3h 23m

STL11:43 amLambert-St Louis

Oct 13

STL9:59 pmLambert-St Louis

3h 38m

LAS11:37 pmLas Vegas Harry Reid Intl

$77

Find similar

Frontier

Sep 19

LAS3:15 pmLas Vegas Harry Reid Intl

3h 25m

STL8:40 pmLambert-St Louis

Sep 22

STL9:29 pmLambert-St Louis

3h 36m

LAS11:05 pmLas Vegas Harry Reid Intl

$102

Find similar

Frontier

Sep 26

LAS8:34 amLas Vegas Harry Reid Intl

3h 19m

STL1:53 pmLambert-St Louis

Sep 29

STL2:38 pmLambert-St Louis

3h 38m

LAS4:16 pmLas Vegas Harry Reid Intl

$103

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 10/10

6:20 am-11:43 am

Nonstop3h 23m

Lambert-St Louis

Mon 10/13

9:59 pm-11:37 pm

Nonstop3h 38m

$77

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

Fri 9/26

8:34 am-1:53 pm

Nonstop3h 19m

Lambert-St Louis

Mon 9/29

2:38 pm-4:16 pm

Nonstop3h 38m

$103

PhoenixChicago

AZA - RFD

AZARFD

Phoenix-Mesa Gateway

Wed 10/15

2:56 pm-8:06 pm

Nonstop3h 10m

Chicago Greater Rockford

Wed 11/19

2:05 pm-4:38 pm

Nonstop3h 33m

$145

PhoenixChicago

AZA - RFD

AZARFD

Phoenix-Mesa Gateway

Fri 11/14

1:45 pm-5:50 pm

Nonstop3h 05m

Chicago Greater Rockford

Wed 11/19

2:05 pm-4:38 pm

Nonstop3h 33m

$152

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Wed 12/10

4:55 pm-10:35 pm

Nonstop3h 40m

Chicago O'Hare Intl

Sun 12/14

7:15 am-9:20 am

Nonstop4h 05m

$153

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Thu 11/6

11:55 pm-5:45 am

Nonstop3h 50m

Chicago O'Hare Intl

Sun 11/9

7:15 am-9:25 am

Nonstop4h 10m

$159

Las VegasChicago

LAS - MDW

LASMDW

Las Vegas Harry Reid Intl

Wed 10/22

8:30 am-2:05 pm

Nonstop3h 35m

Chicago Midway

Wed 10/29

6:05 am-8:00 am

Nonstop3h 55m

$159

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Mon 10/6

7:00 pm-12:30 am

Nonstop3h 30m

Chicago O'Hare Intl

Tue 10/7

8:40 pm-10:36 pm

Nonstop3h 56m

$182

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Sat 10/11

10:50 am-4:29 pm

Nonstop3h 39m

Chicago O'Hare Intl

Sat 10/18

5:01 am-9:28 am

1 stop6h 27m

$183

PhoenixPeoria

PHX - PIA

PHXPIA

Phoenix Sky Harbor Intl

Sat 10/11

9:00 am-4:43 pm

1 stop5h 43m

Greater Peoria

Sat 10/18

8:39 am-2:52 pm

1 stop8h 13m

$251

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Arizona is in January. Flight prices, which tend to average around $217, 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 January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $217.

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 $349. Flights from Arizona to Illinois on a Sunday will generally be more expensive and average around $562. 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 $297. Flights at noon are often more expensive with an average ticket price of $521.

What is the cheapest Arizona to Illinois flight route?

Fly from Phoenix Sky Harbor Intl to Chicago Midway for the best Arizona - 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 Arizona when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $283 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 $255 on momondo.

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

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

You could potentially save up to 2% 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	$141
Fastest flight time	2h 49m
Direct flights	Every day
Airports in Illinois	2 airports

The best one-way flight to Illinois from Arizona in the past 72 hours is $141. The best round-trip flight deal from Arizona to Illinois found on momondo in the last 72 hours is $151.

The fastest flight from Arizona to Illinois takes 2h 49m

Direct flights go from Arizona to Illinois every day.

There are 2 airports near Illinois: Chicago Greater Rockford (RFD), Lambert-St Louis (STL)

Search flight deals

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?
As of September 2025, there are 7 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Arizona to Illinois is Boeing 737-800 (16.23% of total bookings). The next most popular plane models are Boeing 737-900 (12.57%), Boeing 737 MAX 9 (11.27%), and Airbus A321-100/200 (11.02%).

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
Spirit Airlines	PriceFrom $78	Free Cancellation	Rating 6.3 8,015 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $99	Free Cancellation	Rating 5.8 3,172 reviews	Search Frontier flights
Allegiant Air	PriceFrom $128	Free Cancellation	Rating 7.2 699 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $149	Free Cancellation	Rating 7.4 8,929 reviews	Search United Airlines flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $202	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest 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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Wed 10/15

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Find better results for your trip to Illinois

Popular cities in Illinois

Flights to New Yorkfrom $49

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Flights to Orlandofrom $59

Flights to Las Vegasfrom $49

Flights to San Franciscofrom $58

Flights to Washington, D.C.from $54

Flights to Bostonfrom $62

Flights to Atlantafrom $49

Flights to Dallasfrom $68

Flights to Seattlefrom $69

Arizona flight routes

Flights from Phoenix Sky Harbor Intl to San Diego

Flights from Phoenix Sky Harbor Intl to Las Vegas Harry Reid Intl

Flights from Phoenix Sky Harbor Intl to Detroit Metropolitan Wayne County

Flights from Phoenix Sky Harbor Intl to Santa Ana J. Wayne/Orange Cnty

Flights from Phoenix Sky Harbor Intl to Austin Bergstrom

Flights from Phoenix Sky Harbor Intl to Cleveland Hopkins Intl

Cheap flights from Arizona to Illinois from $60

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 12/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Arizona to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Spirit Airlines flights from Arizona to Illinois

Our best Spirit Airlines deals on Arizona to Illinois flight tickets

Frontier flights from Arizona to Illinois

Our best Frontier deals on Arizona to Illinois flight tickets

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Use the filters below to find and compare flights from Arizona to Illinois that are best for you.

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?

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

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 $297. Flights at noon are often more expensive with an average ticket price of $521.

What is the cheapest Arizona to Illinois flight route?

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

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

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

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

You could potentially save up to 2% on your flight if you consider stops on a Arizona to Illinois flight.

What is the cheapest airline that flies from Arizona to Illinois?

Frontier, Southwest, and Spirit Airlines are the most popular carriers operating from Arizona to Illinois

What airlines fly to Illinois?

How many flights depart from Arizona to Illinois on average per day?

As of September 2025, 133 flights take off from Arizona and land in Illinois each day. The most common flight departure time for this route is 12:00PM, with 53% of daily flights taking off at noon.

How many flights depart from Arizona to Illinois on average per week?

As of September 2025, there are 935 flights per week flying from Arizona to Illinois. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

How long is the flight from Arizona to Illinois?

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

Fastest flight time

Direct flights

Airports in Illinois

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

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?

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

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

Why use momondo?

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

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

How can momondo help me find flights 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?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo