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$55+ Cheap flights from Illinois to Phoenix

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Illinois to Phoenix

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

Round-trip from

$131
(Kiwi.com)

One-way from

$55
(Frontier)

Popular in

December

Cheapest in

September

Average price

$277
From Illinois to Phoenix
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One-way flight from Illinois to Phoenix
Search Deals
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).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Illinois to Phoenix

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

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.
Tue 4/17:25 amMDW - PHX
Nonstop3h 56mFrontier
Wed 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.
Wed 3/52:58 pmORD - PHX
Nonstop4h 07mMultiple Airlines
Thu 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.
Wed 3/57:42 pmORD - PHX
2 stops24h 25mSpirit Airlines
Tue 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.
Sat 4/57:02 pmORD - PHX
Nonstop4h 17mFrontier
Thu 4/107:39 pmPHX - ORD
Nonstop3h 19mFrontier
Deal found 2/20$138
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/912:26 pmRFD - AZA
Nonstop3h 35mAllegiant Air
Wed 4/166:30 amAZA - RFD
Nonstop3h 06mAllegiant Air
Deal found 2/19$150
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/26:00 amMLI - PHX
1 stop7h 20mAmerican Airlines
Fri 4/41:09 amPHX - MLI
1 stop7h 42mAmerican Airlines
Deal found 2/20$209
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.
Tue 3/187:47 amORD - AZA
1 stop28h 08mMultiple Airlines
Sun 3/237:03 pmAZA - ORD
1 stop9h 39mMultiple Airlines
Deal found 2/20$212
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/258:25 pmORD - PHX
Nonstop4h 04mAmerican Airlines
Mon 4/71:09 amPHX - ORD
Nonstop3h 23mAmerican Airlines
Deal found 2/20$217
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/65:24 pmSTL - PHX
1 stop30h 52mFrontier
Thu 3/137:00 pmPHX - STL
1 stop12h 16mFrontier
Deal found 2/20$218
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/810:25 amMDW - PHX
1 stop7h 49mDelta
Tue 4/1510:59 pmPHX - MDW
1 stop7h 41mDelta
Deal found 2/20$237
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/267:15 pmORD - PHX
1 stop6h 38mDelta
Tue 4/811:59 pmPHX - ORD
1 stop6h 43mDelta
Deal found 2/20$237
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.
Mon 4/710:59 amMDW - PHX
1 stop28h 22mMultiple Airlines
Thu 4/109:24 amPHX - MDW
1 stop22h 45mMultiple Airlines
Deal found 2/20$252

Find flights from Illinois to Phoenix within your budget

Customize your flight search to find flights from Illinois to Phoenix 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 February 20, 2025.

Fly from

Illinois

Fly to

Phoenix

Route

Depart

Return

Price

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Tue 4/1

7:25 am-9:21 am

Nonstop3h 56m

Phoenix Sky Harbor Intl

Wed 4/9

3:00 pm-8:22 pm

Nonstop3h 22m

$132

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Wed 3/5

2:58 pm-6:05 pm

Nonstop4h 07m

Phoenix Sky Harbor Intl

Sun 3/9

2:12 pm-6:42 am

1 stop14h 30m

$132

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Wed 3/5

7:42 pm-7:07 pm

2 stops24h 25m

Phoenix Sky Harbor Intl

Tue 3/11

7:02 pm-8:21 am

1 stop11h 19m

$133

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sat 4/5

7:02 pm-9:19 pm

Nonstop4h 17m

Phoenix Sky Harbor Intl

Fri 4/11

10:38 am-4:14 pm

Nonstop3h 36m

$138

ChicagoPhoenix

RFD - AZA

RFDAZA

Chicago Greater Rockford

Wed 4/9

12:26 pm-2:01 pm

Nonstop3h 35m

Phoenix-Mesa Gateway

Wed 4/16

6:30 am-11:36 am

Nonstop3h 06m

$150

MolinePhoenix

MLI - PHX

MLIPHX

Moline Quad-City

Wed 4/2

6:00 am-11:20 am

1 stop7h 20m

Phoenix Sky Harbor Intl

Fri 4/4

1:09 am-10:51 am

1 stop7h 42m

$209

ChicagoPhoenix

ORD - AZA

ORDAZA

Chicago O'Hare Intl

Tue 3/18

7:47 am-9:55 am

1 stop28h 08m

Phoenix-Mesa Gateway

Sun 3/23

7:03 pm-6:42 am

1 stop9h 39m

$212

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 3/25

8:25 pm-10:29 pm

Nonstop4h 04m

Phoenix Sky Harbor Intl

Tue 4/1

11:45 pm-5:08 am

Nonstop3h 23m

$217

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Thu 3/6

5:24 pm-11:16 pm

1 stop30h 52m

Phoenix Sky Harbor Intl

Thu 3/13

7:00 pm-9:16 am

1 stop12h 16m

$218

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Tue 4/8

10:25 am-4:14 pm

1 stop7h 49m

Phoenix Sky Harbor Intl

Tue 4/15

10:59 pm-8:40 am

1 stop7h 41m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

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

Have a flexible travel schedule? Discover the best time to fly to Phoenix 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 Phoenix

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Phoenix (average of $258). Flying from Illinois to Phoenix 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 PHX?

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

When flying from Illinois to Phoenix, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Illinois to Phoenix

Explore weekly flight availability from Illinois to Phoenix. 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 February 20, 2025.

The most flights from USIL to PH1 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 Phoenix by month

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

In terms of precipitation, rainfall in Phoenix 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 Phoenix when rainfall is around 0.0 in.

Temperature in Phoenix by month

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

If weather is an important factor for your trip to Phoenix, 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 Phoenix

Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated February 20, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Illinois to Phoenix have to say. 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.
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

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

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

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

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

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

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

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

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

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

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

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 Phoenix. 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 Phoenix one-way?

    $55 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and Allegiant Air, with prices starting from $76 and $89, respectively.

  • What are the most popular routes from Illinois to Phoenix?

    When deciding which route to take from Illinois to Phoenix consider Chicago O'Hare Intl - Phoenix Sky Harbor Intl, Chicago Midway - Phoenix Sky Harbor Intl or Lambert-St Louis - Phoenix Sky Harbor Intl as they are the most popular.

  • What are the most reliable airlines from Illinois to Phoenix?

    The top 3 most reliable airlines when flying from Illinois to Phoenix are Qatar Airways (96%), Brussels Airlines (92%) and Gulf Air (91%).

  • What are the cheapest flights from Illinois to Phoenix?

    Looking for the cheapest flight from Illinois to Phoenix? While on average our users pay $718, our data indicates the cheapest price to be $69. The most popular route (Chicago O'Hare Intl - Phoenix Sky Harbor Intl), is priced around $87.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Phoenix (average of $258). Flying from Illinois to Phoenix 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.

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Alternative routes for Illinois to Phoenix

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 Phoenix

Discover the top 7 airlines that operate flights from Illinois to Phoenix. 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 February 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$523FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$172Average$503FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$210Average$378FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$451FlexibilityNo cancel feeOn-timeN/A
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