HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$62+ Cheap flights from Arizona to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
abr. 27 — may. 41
dom. 4/27
dom. 5/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Arizona to Illinois with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Arizona to Illinois

Keep the following information in mind while searching for Arizona to Illinois flight deals. Data was last updated abril 22, 2025.

Round-trip from

$110
(Cheapflightsfares)

One-way from

$72
(CheapOair)

Popular in

December

Cheapest in

September

Average price

$250

Good round-trip deal

$213 or less

Good one-way deal

$131 or less
From Arizona to Illinois
Search Deals
One-way flight from Arizona to Illinois
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Arizona to Illinois.
Search Deals
Price to beat on a one-way flight from Arizona to Illinois.
Search Deals

Find flight deals from Arizona to Illinois

Cheapest flights from Arizona to Illinois
Explore the most affordable flight options available from Arizona to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 22, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/93:39 pmLAS - STL
Nonstop3h 26mFrontier
dom. 5/119:55 pmSTL - LAS
Nonstop3h 46mFrontier
Deal found 4/21$110
This Cheapflightsfares deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/233:03 pmLAS - ORD
Nonstop3h 50mFrontier
dom. 5/259:50 pmORD - LAS
Nonstop4h 22mFrontier
Deal found 4/21$126
This Cheapflightsfares deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/239:25 amLAS - MDW
Nonstop3h 35mFrontier
dom. 5/256:25 amMDW - LAS
Nonstop4h 03mFrontier
Deal found 4/21$126
This Cheapflightsfares deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/2111:46 pmLAS - ORD
Nonstop3h 39mSpirit Airlines
mié. 5/288:37 amORD - LAS
1 stop13h 33mSpirit Airlines
Deal found 4/22$127
This Cheapflightsfares deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/185:15 amLAS - ORD
Nonstop3h 40mMultiple Airlines
lun. 5/198:14 pmORD - LAS
Nonstop4h 16mMultiple Airlines
Deal found 4/21$132
This Justfly.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/99:24 pmLAS - STL
1 stop9h 51mMultiple Airlines
dom. 5/119:55 pmSTL - LAS
Nonstop3h 46mMultiple Airlines
Deal found 4/21$153
This CheapOair deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/1810:29 pmPHX - MDW
1 stop14h 19mFrontier
dom. 5/258:36 pmMDW - PHX
Nonstop3h 55mFrontier
Deal found 4/20$177
This CheapOair deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/66:15 pmPHX - ORD
Nonstop3h 32mFrontier
lun. 6/93:18 pmORD - PHX
Nonstop4h 02mFrontier
Deal found 4/22$178
This Kiwi.com deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 5/1510:40 amPHX - ORD
Nonstop3h 33mMultiple Airlines
dom. 5/189:02 pmORD - PHX
1 stop13h 11mMultiple Airlines
Deal found 4/22$182
This American Airlines deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/135:00 amPHX - ORD
Nonstop3h 35mAmerican Airlines
mar. 5/206:50 pmORD - PHX
Nonstop4h 02mAmerican Airlines
Deal found 4/22$199
This Mytrip deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/257:30 amAZA - RFD
Nonstop3h 08mAllegiant Air
lun. 6/3012:58 pmRFD - AZA
Nonstop3h 24mAllegiant Air
Deal found 4/22$206
This Southwest deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/35:20 pmLAS - MDW
Nonstop3h 35mSouthwest
mar. 6/106:50 pmMDW - LAS
Nonstop3h 55mSouthwest
Deal found 4/21$209

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated abril 22, 2025.
Use the filters below to find and compare flights from Arizona to Illinois that are best for you.

Fly from

Arizona

Fly to

Illinois

Route

Depart

Return

Price

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

vie. 5/9

3:39 pm-9:05 pm

Nonstop3h 26m

Lambert-St Louis

dom. 5/11

9:55 pm-11:41 pm

Nonstop3h 46m

$110

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

vie. 5/23

3:03 pm-8:53 pm

Nonstop3h 50m

Chicago O'Hare Intl

dom. 5/25

9:50 pm-12:12 am

Nonstop4h 22m

$126

Las VegasChicago

LAS - MDW

LASMDW

Las Vegas Harry Reid Intl

vie. 5/23

9:25 am-3:00 pm

Nonstop3h 35m

Chicago Midway

dom. 5/25

6:25 am-8:28 am

Nonstop4h 03m

$126

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

mié. 5/21

11:46 pm-5:25 am

Nonstop3h 39m

Chicago O'Hare Intl

mié. 5/28

8:37 am-8:10 pm

1 stop13h 33m

$127

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

dom. 5/18

5:15 am-10:55 am

Nonstop3h 40m

Chicago O'Hare Intl

lun. 5/19

8:14 pm-10:30 pm

Nonstop4h 16m

$132

Las VegasSt. Louis

LAS - STL

LASSTL

Las Vegas Harry Reid Intl

vie. 5/9

9:24 pm-9:15 am

1 stop9h 51m

Lambert-St Louis

dom. 5/11

9:55 pm-11:41 pm

Nonstop3h 46m

$153

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

dom. 5/18

10:29 pm-2:48 pm

1 stop14h 19m

Chicago Midway

dom. 5/25

8:36 pm-10:31 pm

Nonstop3h 55m

$177

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

vie. 6/6

6:15 pm-11:47 pm

Nonstop3h 32m

Chicago O'Hare Intl

lun. 6/9

3:18 pm-5:20 pm

Nonstop4h 02m

$178

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

jue. 5/15

10:40 am-4:13 pm

Nonstop3h 33m

Chicago O'Hare Intl

dom. 5/18

9:02 pm-8:13 am

1 stop13h 11m

$182

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

mar. 5/13

5:00 am-10:35 am

Nonstop3h 35m

Chicago O'Hare Intl

mar. 5/20

6:50 pm-8:52 pm

Nonstop4h 02m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Arizona to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Arizona with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Arizona to Illinois

What is the cheapest month to book a flight from Arizona to Illinois?

Currently, August is the cheapest month in which you can book a flight from Arizona to Illinois (average of $245). Flying from Arizona to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AZ to IL?

Find hourly flight availability from Arizona to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Arizona to Illinois as you normally would.

Weekly flight availability from Arizona to Illinois

Explore weekly flight availability from Arizona to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated abril 22, 2025.

The most flights from USAZ to USIL are scheduled on a Tuesday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated abril 22, 2025.
To help decide which airline to fly from Arizona to Illinois, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,906 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,286 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Hawaiian Airlines
7.9
Good
2,392 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,683 reviews
Alaska Airlines
8.0
Very good
9,906 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Arizona to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines to fly from Arizona to Illinois one-way?

    The cheapest airlines for a one-way flight from Arizona to Illinois are Frontier ($72), Spirit Airlines ($75), and Allegiant Air ($98).

  • Can I find deals for flights from Arizona to Illinois that include hotel bookings?

    Yes. In addition to deals on Arizona to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Arizona to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Arizona to Illinois.

  • Can I find deals for business class flights from Arizona to Illinois?

    Yes. Cheapflights offers flight deals from Arizona to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Arizona to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Arizona to Illinois (average of $245). Flying from Arizona to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Arizona to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
Newark to Fort Lauderdale flights
John F Kennedy Intl to Los Angeles flights
John F Kennedy Intl to Miami flights
LaGuardia to Fort Lauderdale flights
Newark to Miami flights
Dallas/Fort Worth to Seattle flights
Newark to Las Vegas flights
Newark to Los Angeles flights
Dallas/Fort Worth to John F Kennedy Intl flights
LaGuardia to Miami flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Seattle flights
Los Angeles to Newark flights
Newark to Orlando flights
LaGuardia to O'Hare Intl flights
Los Angeles to Honolulu flights
John F Kennedy Intl to O'Hare Intl flights
John F Kennedy Intl to Dallas/Fort Worth flights
Dallas/Fort Worth to O'Hare Intl flights
Seattle to Los Angeles flights
John F Kennedy Intl to San Francisco flights
John F Kennedy Intl to Las Vegas flights
John F Kennedy Intl to Fort Lauderdale flights
Newark to Seattle flights
San Francisco to Newark flights
John F Kennedy Intl to Seattle flights
John F Kennedy Intl to Orlando flights
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to Newark flights
Newark to O'Hare Intl flights
Newark to Dallas/Fort Worth flights
LaGuardia to Atlanta flights
O'Hare Intl to LaGuardia flights
Los Angeles to LaGuardia flights
O'Hare Intl to Dallas/Fort Worth flights
O'Hare Intl to John F Kennedy Intl flights
Seattle to John F Kennedy Intl flights
Dallas/Fort Worth to Las Vegas flights
Newark to San Francisco flights
LaGuardia to Dallas/Fort Worth flights
Atlanta to LaGuardia flights
Seattle to Newark flights
Seattle to Las Vegas flights
LaGuardia to Orlando flights
O'Hare Intl to Las Vegas flights
John F Kennedy Intl to Hobby flights
LaGuardia to Los Angeles flights
Los Angeles to Boston flights
Newark to Denver flights

Top 7 airlines flying from Arizona to Illinois

Discover the top 7 airlines that operate flights from Arizona to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$64Average$188FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$81Average$203FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$128Average$232FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$149Average$384FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$168Average$500FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$189Average$409FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$465FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.