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Sky Harbor Intl

$55+ Cheap flights from Illinois to Sky Harbor Intl (PHX)

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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Illinois to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Sky Harbor Intl (PHX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$129
(Frontier)

One-way from

$55
(Frontier)

Good round-trip deal

$203 or less

Good one-way deal

$131 or less
From Illinois to Phoenix Sky Harbor Intl
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One-way flight from Illinois to Phoenix Sky Harbor Intl
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Price to beat on a round-trip flight from Illinois to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Illinois to Phoenix Sky Harbor Intl.
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Find flight deals from Illinois to Sky Harbor Intl

Cheapest flights from Illinois to Sky Harbor Intl
Explore the most affordable flight options available from Illinois to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Frontier deal was found by Cheapflights users on 1/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/16:40 amMDW - PHX
1 stop11h 24mFrontier
Tue 4/85:09 pmPHX - MDW
1 stop5h 12mFrontier
Deal found 1/21$129
This Frontier deal was found by Cheapflights users on 1/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/135:10 amORD - PHX
1 stop8h 40mFrontier
Thu 2/207:10 pmPHX - ORD
Nonstop3h 29mFrontier
Deal found 1/21$129
This Kiwi.com deal was found by Cheapflights users on 1/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/48:35 amORD - PHX
1 stop8h 37mMultiple Airlines
Wed 4/97:39 pmPHX - ORD
Nonstop3h 24mMultiple Airlines
Deal found 1/21$135
This Cheapflightsfares deal was found by Cheapflights users on 1/21. 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.
Fri 1/2410:47 pmORD - PHX
1 stop13h 14mSpirit Airlines
Fri 1/3111:56 amPHX - ORD
1 stop8h 56mSpirit Airlines
Deal found 1/21$143
This American Airlines deal was found by Cheapflights users on 1/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/226:50 pmORD - PHX
Nonstop4h 00mAmerican Airlines
Mon 2/2412:45 amPHX - ORD
Nonstop3h 15mAmerican Airlines
Deal found 1/21$177
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/115:00 amMLI - PHX
1 stop8h 29mAmerican Airlines
Sat 2/157:30 amPHX - MLI
1 stop7h 21mAmerican Airlines
Deal found 1/20$209
This Southwest deal was found by Cheapflights users on 1/21. 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.
Sun 2/235:05 amMDW - PHX
Nonstop4h 05mSouthwest
Fri 2/285:25 amPHX - MDW
Nonstop3h 15mSouthwest
Deal found 1/21$217
This United Airlines deal was found by Cheapflights users on 1/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/209:11 pmORD - PHX
Nonstop4h 04mUnited Airlines
Wed 2/2611:59 pmPHX - ORD
Nonstop3h 22mUnited Airlines
Deal found 1/20$228
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/225:05 pmMDW - PHX
1 stop7h 23mDelta
Thu 2/2712:59 amPHX - MDW
1 stop7h 36mDelta
Deal found 1/21$237
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/115:10 pmORD - PHX
1 stop7h 32mDelta
Sat 2/156:30 amPHX - ORD
1 stop6h 42mDelta
Deal found 1/21$237
This United Airlines deal was found by Cheapflights users on 1/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/88:55 amMLI - PHX
1 stop7h 30mUnited Airlines
Sun 4/1311:59 pmPHX - MLI
1 stop8h 13mUnited Airlines
Deal found 1/21$252
This Delta deal was found by Cheapflights users on 1/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/275:05 pmMLI - PHX
1 stop7h 37mDelta
Tue 3/42:46 pmPHX - MLI
1 stop6h 45mDelta
Deal found 1/21$253

Find flights from Illinois to Sky Harbor Intl within your budget

Customize your flight search to find flights from Illinois to Sky Harbor Intl 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sun 3/2

8:44 pm-7:47 am

1 stop12h 03m

Phoenix Sky Harbor Intl

Wed 3/5

12:05 pm-12:17 am

1 stop11h 12m

$129

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Thu 2/13

5:10 am-12:50 pm

1 stop8h 40m

Phoenix Sky Harbor Intl

Thu 2/20

7:10 pm-11:39 pm

Nonstop3h 29m

$129

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Fri 4/4

8:35 am-3:12 pm

1 stop8h 37m

Phoenix Sky Harbor Intl

Wed 4/9

7:39 pm-1:03 am

Nonstop3h 24m

$135

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sun 2/2

10:47 pm-11:01 am

1 stop13h 14m

Phoenix Sky Harbor Intl

Fri 2/7

11:56 am-9:52 pm

1 stop8h 56m

$150

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sat 2/22

8:25 pm-11:33 pm

Nonstop4h 08m

Phoenix Sky Harbor Intl

Fri 2/28

12:45 am-5:00 am

Nonstop3h 15m

$177

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Mon 3/3

9:20 pm-12:20 am

Nonstop4h 00m

Phoenix Sky Harbor Intl

Wed 3/12

7:10 pm-12:25 am

Nonstop3h 15m

$198

MolinePhoenix

MLI - PHX

MLIPHX

Moline Quad-City

Tue 2/11

5:00 am-12:29 pm

1 stop8h 29m

Phoenix Sky Harbor Intl

Sat 2/15

7:30 am-3:51 pm

1 stop7h 21m

$209

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Thu 2/20

9:11 pm-12:15 am

Nonstop4h 04m

Phoenix Sky Harbor Intl

Wed 2/26

11:59 pm-4:21 am

Nonstop3h 22m

$228

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Wed 2/19

5:05 pm-11:42 pm

1 stop7h 37m

Phoenix Sky Harbor Intl

Fri 2/21

12:59 am-10:42 am

1 stop8h 43m

$237

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 2/11

2:55 pm-11:42 pm

1 stop9h 47m

Phoenix Sky Harbor Intl

Sat 2/15

11:59 pm-9:16 am

1 stop8h 17m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl 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 Sky Harbor Intl

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

What is the cheapest month to book a flight from Illinois to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Illinois to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Illinois to Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

When flying from Illinois to Phoenix Sky Harbor Intl Airport, 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 Sky Harbor Intl Airport

Explore weekly flight availability from Illinois to Sky Harbor Intl. 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 January 21, 2025.

The most flights from USIL to PHX are scheduled on a Monday (41 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (27 on average).

Rainfall in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phoenix Sky Harbor Intl Airport 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 Sky Harbor Intl Airport when rainfall is around 0.0 in.

Temperature in Sky Harbor Intl by month

Plan your trip to Sky Harbor Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phoenix Sky Harbor Intl Airport, 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 Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. 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 Sky Harbor Intl. Reviews last updated January 21, 2025.
See what other customers who have flown with Spirit Airlines, Alaska Airlines and Delta from Illinois to Phoenix have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Comfort

8.1

Boarding

8.2

Crew

8.7

Entertainment

7.7

Overall

8.1

Food

7.2

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Sky Harbor Intl. 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 Sky Harbor Intl Airport one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $55. However, be on the lookout for offers from Spirit Airlines and United Airlines, as they are both options that can get you from Illinois to Phoenix Sky Harbor Intl Airport for a low price.

  • What are the most popular routes from Illinois to Phoenix Sky Harbor Intl Airport?

    While some choose either Chicago Midway - Phoenix Sky Harbor Intl or Lambert-St Louis - Phoenix Sky Harbor Intl, Chicago O'Hare Intl - Phoenix Sky Harbor Intl is the most popular route from Illinois to Phoenix Sky Harbor Intl Airport.

  • What are the most reliable airlines from Illinois to Phoenix Sky Harbor Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Illinois to Phoenix Sky Harbor Intl Airport consider choosing Brussels Airlines (90%), Austrian Airlines (88%) or Iberia (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Phoenix Sky Harbor Intl Airport?

    On average you can expect to pay $828 for a flight from Illinois to Phoenix Sky Harbor Intl Airport. The cheapest flight overall is $65 while the most popular route, (Chicago O'Hare Intl - Phoenix Sky Harbor Intl) is currently priced at $93.

  • Can I find deals for flights from Illinois to Sky Harbor Intl that include hotel bookings?

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

  • How can I find direct flights from Illinois to Sky Harbor Intl?

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

  • Can I find deals for business class flights from Illinois to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Illinois to Sky Harbor Intl 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 Sky Harbor Intl Airport?

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

Traveling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Chandler
Peoria
Buckeye
Glendale
Surprise
Payson
Goodyear
Avondale
Paradise Valley
Guadalupe
Litchfield Park
Fountain Hills

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Alternative routes for Illinois to Sky Harbor Intl

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 Sky Harbor Intl

Discover the top 7 airlines that operate flights from Illinois to Sky Harbor Intl. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$178FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$96Average$245FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$154Average$306FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$163Average$549FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$172Average$501FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$204Average$360FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$425FlexibilityNo cancel feeOn-timeN/A
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