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$49+ Cheap flights from Illinois to Arizona

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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Illinois to Arizona

Keep the following information in mind while searching for Illinois to Arizona flight deals. Data was last updated febrero 20, 2025.

Round-trip from

$111
(Cheapflightsfares)

One-way from

$49
(Frontier)

Popular in

December

Cheapest in

September

Average price

$277

Good round-trip deal

$194 or less

Good one-way deal

$77 or less
From Illinois to Arizona
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One-way flight from Illinois to Arizona
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Highest demand for flights based on searches. 12% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Illinois to Arizona.
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Price to beat on a one-way flight from Illinois to Arizona.
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Find flight deals from Illinois to Arizona

Cheapest flights from Illinois to Arizona
Explore the most affordable flight options available from Illinois to Arizona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/19. 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. 3/124:45 pmORD - LAS
1 stop16h 27mSpirit Airlines
vie. 3/147:59 amLAS - ORD
Nonstop3h 40mSpirit Airlines
Deal found 2/19$111
This Cheapflightsfares deal was found by Cheapflights users on 2/19. 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.
lun. 4/76:45 amMDW - LAS
1 stop6h 18mFrontier
vie. 4/1111:49 pmLAS - MDW
Nonstop3h 34mFrontier
Deal found 2/19$111
This Cheapflightsfares deal was found by Cheapflights users on 2/19. 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.
jue. 4/36:30 amORD - LAS
1 stop19h 19mFrontier
lun. 4/711:28 pmLAS - ORD
Nonstop3h 40mFrontier
Deal found 2/19$112
This Kiwi.com deal was found by Cheapflights users on 2/19. 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.
mar. 3/187:47 amORD - LAS
Nonstop4h 09mMultiple Airlines
jue. 3/2710:37 pmLAS - ORD
Nonstop3h 37mMultiple Airlines
Deal found 2/19$113
This Booking.com deal was found by Cheapflights users on 2/19. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/29:39 pmRFD - LAS
Nonstop3h 49mAllegiant Air
jue. 3/63:28 pmLAS - RFD
Nonstop3h 19mAllegiant Air
Deal found 2/19$124
This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/211:08 pmSTL - LAS
Nonstop3h 49mFrontier
vie. 3/712:37 pmLAS - STL
Nonstop3h 23mFrontier
Deal found 2/20$125
This Flightnetwork deal was found by Cheapflights users on 2/19. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/17:25 amMDW - PHX
Nonstop3h 56mFrontier
mié. 4/93:00 pmPHX - MDW
Nonstop3h 22mFrontier
Deal found 2/19$132
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/52:58 pmORD - PHX
Nonstop4h 07mMultiple Airlines
jue. 3/63:38 pmPHX - ORD
1 stop14h 04mMultiple Airlines
Deal found 2/20$132
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/57:42 pmORD - PHX
2 stops24h 25mSpirit Airlines
mar. 3/117:02 pmPHX - ORD
1 stop11h 19mSpirit Airlines
Deal found 2/20$133
This Frontier deal was found by Cheapflights users on 2/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/57:02 pmORD - PHX
Nonstop4h 17mFrontier
jue. 4/107:39 pmPHX - ORD
Nonstop3h 19mFrontier
Deal found 2/20$138
This American Airlines deal was found by Cheapflights users on 2/19. 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.
sáb. 5/37:20 amORD - LAS
Nonstop4h 07mAmerican Airlines
mar. 5/67:00 amLAS - ORD
Nonstop3h 47mAmerican Airlines
Deal found 2/19$159
This FlightHub deal was found by Cheapflights users on 2/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/156:11 pmSTL - LAS
1 stop8h 48mMultiple Airlines
sáb. 4/1912:22 pmLAS - STL
Nonstop3h 21mMultiple Airlines
Deal found 2/20$175

Find flights from Illinois to Arizona within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated febrero 20, 2025.

Fly from

Illinois

Fly to

Arizona

Route

Depart

Return

Price

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

mié. 3/12

4:45 pm-7:12 am

1 stop16h 27m

Las Vegas Harry Reid Intl

vie. 3/14

7:59 am-1:39 pm

Nonstop3h 40m

$111

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

lun. 4/7

6:45 am-11:03 am

1 stop6h 18m

Las Vegas Harry Reid Intl

vie. 4/11

11:49 pm-5:23 am

Nonstop3h 34m

$111

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

jue. 4/3

6:30 am-11:49 pm

1 stop19h 19m

Las Vegas Harry Reid Intl

lun. 4/7

11:28 pm-5:08 am

Nonstop3h 40m

$112

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

mar. 3/18

7:47 am-9:56 am

Nonstop4h 09m

Las Vegas Harry Reid Intl

jue. 3/27

10:37 pm-4:14 am

Nonstop3h 37m

$113

ChicagoLas Vegas

RFD - LAS

RFDLAS

Chicago Greater Rockford

dom. 3/2

9:39 pm-11:28 pm

Nonstop3h 49m

Las Vegas Harry Reid Intl

jue. 3/6

3:28 pm-8:47 pm

Nonstop3h 19m

$124

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

dom. 3/2

11:08 pm-12:57 am

Nonstop3h 49m

Las Vegas Harry Reid Intl

vie. 3/7

12:37 pm-6:00 pm

Nonstop3h 23m

$125

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

mié. 3/5

2:58 pm-6:05 pm

Nonstop4h 07m

Phoenix Sky Harbor Intl

dom. 3/9

2:12 pm-6:42 am

1 stop14h 30m

$132

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

mar. 4/1

7:25 am-9:21 am

Nonstop3h 56m

Phoenix Sky Harbor Intl

mié. 4/9

3:00 pm-8:22 pm

Nonstop3h 22m

$132

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

mié. 3/5

7:42 pm-7:07 pm

2 stops24h 25m

Phoenix Sky Harbor Intl

mar. 3/11

7:02 pm-8:21 am

1 stop11h 19m

$133

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

sáb. 4/5

7:02 pm-9:19 pm

Nonstop4h 17m

Phoenix Sky Harbor Intl

vie. 4/11

10:38 am-4:14 pm

Nonstop3h 36m

$138

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Arizona

Have a flexible travel schedule? Discover the best time to fly to Arizona from Illinois 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.

Travel insights for flights from Illinois to Arizona

Get recent, data-driven insights about flights from Illinois to Arizona including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Arizona (average of $258). Flying from Illinois to Arizona in March is currently the most expensive (average of $337). 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 IL to AZ?

Find hourly flight availability from Illinois to Arizona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

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

Weekly flight availability from Illinois to Arizona

Explore weekly flight availability from Illinois to Arizona. 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 febrero 20, 2025.

The most flights from USIL to USAZ are scheduled on a Thursday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).

Rainfall in Arizona by month

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

In terms of precipitation, rainfall in Arizona ranges from 0.0 - 1.1 inches per month. July is typically the wettest month, when rainfall can reach 1.1 in. June is typically the driest time to visit Arizona when rainfall is around 0.0 in.

Temperature in Arizona by month

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

If weather is an important factor for your trip to Arizona, 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 95.0 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 55.4 F).

Reviews of airlines servicing Arizona

Get insights into the airlines that provide service to Arizona. 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 Arizona. Reviews last updated febrero 20, 2025.
To help decide which airline to fly from Illinois to Arizona, see what other customers have to say about Southwest, Alaska Airlines and Delta. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Overall

8.1

Crew

8.7

Food

7.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Arizona. 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 Illinois to Arizona one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $49. Spirit Airlines flights start at $56 while deals on Allegiant Air start at $57 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Arizona 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 Illinois to Arizona?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Arizona (average of $258). Flying from Illinois to Arizona in March is currently the most expensive (average of $337). 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

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Alternative routes for Illinois to Arizona

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Illinois to Arizona

Discover the top 7 airlines that operate flights from Illinois to Arizona. 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$200FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$98Average$240FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$113Average$268FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$165Average$506FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$172Average$498FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$210Average$410FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$489FlexibilityNo cancel feeOn-timeN/A
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