Phoenix

$88+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
May 5 — May 121
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Phoenix 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 Illinois to Phoenix

Keep the following information in mind while searching for Illinois to Phoenix flight deals. Data was last updated April 30, 2025.

Round-trip from

$176
(Frontier)

One-way from

$88
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$271
From Illinois to Phoenix
One-way flight from Illinois to Phoenix
Highest demand for flights based on searches. 10% potential increase in price ($32 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Average for round-trip flights in April 2025

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 April 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
Mon 6/23:18 pmORD - PHX
Nonstop4h 02mFrontier
Mon 6/96:15 pmPHX - ORD
Nonstop3h 32mFrontier
Deal found 4/27$176
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Sat 5/179:02 pmORD - PHX
1 stop13h 11mMultiple Airlines
Tue 5/205:54 pmPHX - ORD
1 stop22h 56mMultiple Airlines
Deal found 4/28$177
This Mytrip deal was found by Cheapflights users on 4/28. 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 5/289:02 pmORD - PHX
1 stop13h 11mSpirit Airlines
Fri 5/309:19 amPHX - ORD
1 stop18h 06mSpirit Airlines
Deal found 4/28$178
This Booking.com deal was found by Cheapflights users on 4/28. 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.
Fri 5/3012:55 pmRFD - AZA
Nonstop3h 33mAllegiant Air
Mon 6/27:00 amAZA - RFD
Nonstop3h 05mAllegiant Air
Deal found 4/28$186
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
Tue 5/272:44 pmMDW - PHX
1 stop6h 42mFrontier
Wed 5/2812:55 pmPHX - MDW
1 stop7h 41mFrontier
Deal found 4/29$193
This American Airlines deal was found by Cheapflights users on 4/29. 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 5/206:00 amORD - PHX
Nonstop3h 52mAmerican Airlines
Tue 5/2711:45 pmPHX - ORD
Nonstop3h 28mAmerican Airlines
Deal found 4/29$224
This Delta deal was found by Cheapflights users on 4/29. 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 5/206:00 amMDW - PHX
1 stop8h 15mDelta
Tue 5/2012:45 amPHX - MDW
1 stop5h 51mDelta
Deal found 4/29$237
This Delta deal was found by Cheapflights users on 4/29. 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 5/207:30 amORD - PHX
1 stop6h 41mDelta
Tue 5/2012:45 amPHX - ORD
1 stop5h 39mDelta
Deal found 4/29$237
This Southwest deal was found by Cheapflights users on 4/29. 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.
Fri 5/308:45 amMDW - PHX
Nonstop3h 50mSouthwest
Tue 6/35:15 pmPHX - MDW
Nonstop3h 20mSouthwest
Deal found 4/29$242
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/137:19 pmORD - PHX
1 stop15h 30mAlaska Airlines
Tue 5/207:00 amPHX - ORD
1 stop14h 56mAlaska Airlines
Deal found 4/29$244
This American Airlines deal was found by Cheapflights users on 4/29. 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 6/46:10 amPIA - PHX
1 stop6h 12mAmerican Airlines
Wed 6/112:05 pmPHX - PIA
1 stop7h 54mAmerican Airlines
Deal found 4/29$251
This Delta deal was found by Cheapflights users on 4/28. 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.
Mon 5/266:00 amMLI - PHX
1 stop8h 15mDelta
Sun 8/316:05 amPHX - MLI
1 stop8h 17mDelta
Deal found 4/28$253

Cheapflights Fare Finder

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 April 30, 2025.
Use the filters below to find and compare flights from Illinois to Phoenix that are best for you.

Fly from

Illinois

Fly to

Phoenix

Route

Depart

Return

Price

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Mon 6/2

3:18 pm-5:20 pm

Nonstop4h 02m

Phoenix Sky Harbor Intl

Mon 6/9

6:15 pm-11:47 pm

Nonstop3h 32m

$176

ChicagoPhoenix

RFD - AZA

RFDAZA

Chicago Greater Rockford

Wed 10/15

8:56 pm-10:27 pm

Nonstop3h 31m

Phoenix-Mesa Gateway

Sat 10/18

7:00 am-12:10 pm

Nonstop3h 10m

$176

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sat 5/17

9:02 pm-8:13 am

1 stop13h 11m

Phoenix Sky Harbor Intl

Tue 5/20

5:54 pm-6:50 pm

1 stop22h 56m

$177

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Wed 5/28

9:02 pm-8:13 am

1 stop13h 11m

Phoenix Sky Harbor Intl

Fri 5/30

9:19 am-5:25 am

1 stop18h 06m

$178

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Tue 5/27

2:44 pm-7:26 pm

1 stop6h 42m

Phoenix Sky Harbor Intl

Wed 5/28

12:55 pm-10:36 pm

1 stop7h 41m

$193

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 5/20

6:00 am-7:52 am

Nonstop3h 52m

Phoenix Sky Harbor Intl

Tue 5/27

11:45 pm-5:13 am

Nonstop3h 28m

$224

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Tue 5/20

6:00 am-12:15 pm

1 stop8h 15m

Phoenix Sky Harbor Intl

Tue 5/20

12:45 am-8:36 am

1 stop5h 51m

$237

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 5/20

7:30 am-12:11 pm

1 stop6h 41m

Phoenix Sky Harbor Intl

Tue 5/20

12:45 am-8:24 am

1 stop5h 39m

$237

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Fri 5/30

8:45 am-10:35 am

Nonstop3h 50m

Phoenix Sky Harbor Intl

Tue 6/3

5:15 pm-10:35 pm

Nonstop3h 20m

$242

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 5/13

9:00 am-4:28 pm

1 stop9h 28m

Phoenix Sky Harbor Intl

Tue 5/20

7:00 am-11:56 pm

1 stop14h 56m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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

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.

Cheapflights Insights

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

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 April 30, 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 April 30, 2025.

The most flights from USIL to PH1 are scheduled on a Tuesday (53 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 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 April 30, 2025.
See what other customers who have flown with Alaska Airlines, Southwest 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.

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Entertainment

7.1

Boarding

8.2

Comfort

7.9

Food

7.1

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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?

    $88 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 $94 and $110, respectively.

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

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

    The top 3 most reliable airlines when flying from Illinois to Phoenix are United Airlines (90%), Air Canada (89%) and Emirates (88%).

  • What are the cheapest flights from Illinois to Phoenix?

    Looking for the cheapest flight from Illinois to Phoenix? While on average our users pay $622, our data indicates the cheapest price to be $89. The most popular route (Chicago O'Hare Intl - Phoenix Sky Harbor Intl), is priced around $162.

  • 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.

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 Illinois to Phoenix

See prices for flight routes from nearby airports that may be better suited for you.

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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$200FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$105Average$218FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$113Average$265FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$174Average$480FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$176Average$387FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$361FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$216Average$377FlexibilityNo cancel feeOn-time63%

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.