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$79+ Cheap flights from Phoenix 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Phoenix to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) to Illinois (USIL). 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 November 21, 2024.

Find flight deals from Phoenix to Illinois

Cheapest flights from Phoenix to Illinois
Explore the most affordable flight options available from Phoenix to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Frontier deal was found by Cheapflights users on 11/20. 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.
Thu 12/53:17 pmPHX - ORD
Nonstop3h 28mFrontier
Mon 12/98:25 pmORD - PHX
1 stop12h 53mFrontier
Deal found 11/20$123
This Frontier deal was found by Cheapflights users on 11/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/159:59 pmPHX - MDW
1 stop12h 49mFrontier
Mon 1/134:35 pmMDW - PHX
1 stop7h 00mFrontier
Deal found 11/19$128
This FlightHub deal was found by Cheapflights users on 11/20. 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.
Fri 12/610:11 pmPHX - ORD
1 stop6h 19mMultiple Airlines
Sun 12/86:10 amORD - PHX
Nonstop4h 09mMultiple Airlines
Deal found 11/20$130
This Mytrip deal was found by Cheapflights users on 11/20. 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 12/49:00 pmPHX - ORD
1 stop7h 30mSpirit Airlines
Wed 12/116:35 amORD - PHX
2 stops14h 12mSpirit Airlines
Deal found 11/20$162
This Mytrip deal was found by Cheapflights users on 11/20. 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 12/93:41 pmAZA - RFD
Nonstop3h 07mAllegiant Air
Wed 12/112:57 pmRFD - AZA
Nonstop3h 38mAllegiant Air
Deal found 11/20$191
This American Airlines deal was found by Cheapflights users on 11/19. 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.
Fri 12/1312:45 amPHX - ORD
Nonstop3h 33mAmerican Airlines
Mon 1/138:25 pmORD - PHX
Nonstop4h 11mAmerican Airlines
Deal found 11/19$198
This Southwest deal was found by Cheapflights users on 11/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:10 pmPHX - MDW
Nonstop3h 15mSouthwest
Tue 12/175:35 amMDW - PHX
Nonstop3h 55mSouthwest
Deal found 11/20$199
This Mytrip deal was found by Cheapflights users on 11/19. 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 12/47:25 pmPHX - STL
1 stop23h 09mFrontier
Sat 12/76:46 pmSTL - PHX
1 stop28h 37mFrontier
Deal found 11/19$199
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 12/411:59 pmPHX - ORD
Nonstop3h 26mUnited Airlines
Wed 12/1112:55 pmORD - PHX
Nonstop3h 58mUnited Airlines
Deal found 11/20$224
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1312:55 amPHX - MDW
1 stop6h 55mDelta
Sun 1/121:26 pmMDW - PHX
1 stop9h 09mDelta
Deal found 11/19$236
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1112:55 amPHX - ORD
1 stop7h 02mDelta
Sun 1/1210:30 amORD - PHX
1 stop9h 12mDelta
Deal found 11/19$256
This American Airlines deal was found by Cheapflights users on 11/20. 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 12/187:58 pmPHX - STL
Nonstop2h 56mAmerican Airlines
Wed 1/17:24 amSTL - PHX
Nonstop3h 31mAmerican Airlines
Deal found 11/20$277

Find flights from Phoenix to Illinois within your budget

Customize your flight search to find flights from Phoenix 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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 12/5

3:17 pm-7:45 pm

Nonstop3h 28m

Chicago O'Hare Intl

Mon 12/9

8:25 pm-8:18 am

1 stop12h 53m

$123

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 1/7

1:19 am-8:37 am

1 stop6h 18m

Chicago O'Hare Intl

Mon 1/13

8:12 pm-11:27 pm

Nonstop4h 15m

$124

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Sun 1/12

6:05 am-1:08 pm

1 stop6h 03m

Chicago Midway

Tue 1/14

8:15 am-12:57 pm

1 stop5h 42m

$126

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 12/4

9:00 pm-5:30 am

1 stop7h 30m

Chicago O'Hare Intl

Wed 12/11

6:35 am-7:47 pm

2 stops14h 12m

$162

PhoenixChicago

AZA - RFD

AZARFD

Phoenix-Mesa Gateway

Sat 3/1

7:10 am-11:09 am

Nonstop2h 59m

Chicago Greater Rockford

Mon 3/3

8:16 pm-11:04 pm

Nonstop3h 48m

$162

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 1/7

12:45 am-5:11 am

Nonstop3h 26m

Chicago O'Hare Intl

Wed 1/22

8:25 pm-11:36 pm

Nonstop4h 11m

$169

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Wed 1/8

6:40 pm-10:50 pm

Nonstop3h 10m

Chicago Midway

Wed 1/22

8:35 pm-11:40 pm

Nonstop4h 05m

$170

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 1/8

10:00 am-2:32 pm

Nonstop3h 32m

Chicago O'Hare Intl

Wed 1/22

7:10 am-11:47 am

1 stop5h 37m

$174

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Wed 12/4

7:25 pm-7:34 pm

1 stop23h 09m

Lambert-St Louis

Sat 12/7

6:46 pm-10:23 pm

1 stop28h 37m

$199

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Sat 1/11

6:00 am-2:53 pm

1 stop7h 53m

Chicago Midway

Sat 1/18

3:41 pm-11:52 pm

1 stop9h 11m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

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

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

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

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

Currently, September is the cheapest month in which you can book a flight from Phoenix to Illinois (average of $232). Flying from Phoenix to Illinois in June is currently the most expensive (average of $308). 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 PHX to IL?

Find hourly flight availability from Phoenix 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 November 21, 2024.

When flying from Phoenix to Illinois, 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 Phoenix to Illinois

Explore weekly flight availability from Phoenix 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 November 21, 2024.

The most flights from PH1 to USIL are scheduled on a Thursday (43 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 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 November 21, 2024.
Get a feel of what it's like to fly with Frontier, Spirit Airlines and American Airlines from Phoenix to Illinois by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,758 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

WestJet
7.3
Good
2,810 reviews
Southwest
8.1
Very good
5,015 reviews

Boarding

8.2

Comfort

8.1

Entertainment

7.7

Food

7.2

Overall

8.1

Crew

8.7

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

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

    The cheapest airlines for a one-way flight from Phoenix to Illinois are Frontier ($79), United Airlines ($85), and Allegiant Air ($88).

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

    Most travelers choose Phoenix Sky Harbor Intl - Chicago O'Hare Intl, Phoenix Sky Harbor Intl - Chicago Midway or Phoenix Sky Harbor Intl - Lambert-St Louis when deciding on the best route from Phoenix to Illinois.

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

    Before booking your flight to Illinois from Phoenix, check out the most reliable airlines to get you to your destination on time: Frontier (96%), SWISS (96%), Royal Jordanian( 93%).

  • What are the cheapest flights from Phoenix to Illinois?

    While on average a flight from Phoenix to Illinois is generally $1,227, our data shows the cheapest flight currently is $91. When looking at the most popular route, (Phoenix Sky Harbor Intl - Chicago O'Hare Intl), you can expect to pay $116 for that flight.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Phoenix to Illinois (average of $232). Flying from Phoenix to Illinois in June is currently the most expensive (average of $308). 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 Phoenix to Illinois

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

Discover the top 7 airlines that operate flights from Phoenix 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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$168FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$68Average$191FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$118Average$266FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$159Average$503FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$164Average$458FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$170Average$320FlexibilityNo cancel feeOn-time63%
DeltaCheapest$215Average$367FlexibilityNo cancel feeOn-timeN/A
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