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Mesa

$80+ Cheap flights from Illinois to Mesa, AZ

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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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Cheap flight deals from Illinois to Mesa

Cheapest flights from Illinois to Mesa
Explore the most affordable flight options available from Illinois to Mesa. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 21, 2026.

This Super.com deal was found by Cheapflights users on 3/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:55 am
ORD
-
PHX
Nonstop4h 15m
Frontier
Mon 5/411:19 am
PHX
-
ORD
Nonstop3h 41m
Frontier
Deal found 3/16$165
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Sun 4/267:50 am
ORD
-
PHX
Nonstop4h 22m
Multiple Airlines
Sun 5/1711:30 pm
PHX
-
ORD
1 stop9h 16m
Multiple Airlines
Deal found 3/17$167
This Kiwi.com deal was found by Cheapflights users on 3/17. 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.
Tue 4/216:10 am
MDW
-
PHX
2 stops13h 47m
Frontier
Fri 4/244:34 pm
PHX
-
MDW
Nonstop3h 16m
Frontier
Deal found 3/17$168
This Expedia deal was found by Cheapflights users on 3/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:50 am
ORD
-
PHX
Nonstop4h 22m
Multiple Airlines
Tue 4/283:43 pm
PHX
-
ORD
1 stop19h 30m
Multiple Airlines
Deal found 3/17$168
This Frontier deal was found by Cheapflights users on 3/17. 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.
Mon 5/46:20 am
MDW
-
PHX
Nonstop3h 57m
Frontier
Fri 5/811:30 pm
PHX
-
MDW
1 stop9h 34m
Frontier
Deal found 3/17$169
This CheapOair deal was found by Cheapflights users on 3/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:50 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Thu 4/308:22 pm
PHX
-
ORD
1 stop7h 58m
Frontier
Deal found 3/17$169
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/247:50 am
ORD
-
PHX
Nonstop4h 22m
Multiple Airlines
Mon 4/2710:29 pm
PHX
-
ORD
1 stop9h 54m
Multiple Airlines
Deal found 3/17$170
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:00 am
MDW
-
PHX
1 stop7h 41m
Frontier
Fri 4/244:34 pm
PHX
-
MDW
Nonstop3h 16m
Frontier
Deal found 3/20$171
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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.
Sat 4/113:35 pm
ORD
-
PHX
Nonstop4h 19m
Frontier
Sat 4/2512:17 pm
PHX
-
ORD
Nonstop3h 36m
Frontier
Deal found 3/20$171
This CheapOair deal was found by Cheapflights users on 3/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:15 am
MDW
-
PHX
Nonstop3h 57m
Frontier
Mon 5/49:37 am
PHX
-
MDW
Nonstop3h 27m
Frontier
Deal found 3/18$172
This Cheapflightsfares deal was found by Cheapflights users on 3/16. 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 4/108:25 am
ORD
-
PHX
Nonstop4h 15m
Frontier
Sat 4/1812:38 pm
PHX
-
ORD
1 stop8h 01m
Frontier
Deal found 3/16$172
This Frontier deal was found by Cheapflights users on 3/19. 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.
Mon 4/206:20 am
MDW
-
PHX
Nonstop3h 57m
Frontier
Fri 4/246:00 am
PHX
-
MDW
1 stop11h 31m
Frontier
Deal found 3/19$173

Find flight deals from Illinois to Mesa

Keep the following information in mind while searching for Illinois to Mesa flight deals. Data was last updated March 21, 2026.

Round-trip from

$165
(Super.com)

One-way from

$80
(Frontier)

Popular in

March

Cheapest in

August

Average price

$327
From Illinois to Mesa
Search Deals
One-way flight from Illinois to Mesa
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Mesa 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 March 21, 2026.
Use the filters below to find and compare flights from Illinois to Mesa that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sat 5/23

5:10 am-6:55 am

Nonstop3h 45m

Phoenix Sky Harbor Intl

Wed 5/27

6:05 pm-11:20 pm

Nonstop3h 15m

$255

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Thu 4/9

9:50 pm-11:56 pm

Nonstop4h 06m

Phoenix Sky Harbor Intl

Mon 4/13

6:00 pm-11:30 pm

Nonstop3h 30m

$265

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Thu 4/30

6:55 am-8:45 am

Nonstop3h 50m

Phoenix Sky Harbor Intl

Mon 5/4

6:40 am-11:55 am

Nonstop3h 15m

$265

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sat 6/13

5:00 am-9:00 am

1 stop6h 00m

Phoenix Sky Harbor Intl

Sat 6/20

11:50 pm-5:17 am

Nonstop3h 27m

$265

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Tue 4/28

6:50 pm-8:40 pm

Nonstop3h 50m

Phoenix Sky Harbor Intl

Mon 5/4

6:40 am-11:55 am

Nonstop3h 15m

$272

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sat 6/13

6:45 pm-10:56 pm

1 stop6h 11m

Phoenix Sky Harbor Intl

Fri 6/19

12:59 am-8:38 am

1 stop5h 39m

$275

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sat 4/25

7:16 pm-11:24 pm

1 stop6h 08m

Phoenix Sky Harbor Intl

Mon 4/27

11:55 pm-9:56 am

1 stop8h 01m

$277

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Fri 5/8

7:13 pm-11:29 pm

1 stop6h 16m

Phoenix Sky Harbor Intl

Tue 5/12

6:05 am-1:19 pm

1 stop5h 14m

$277

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Thu 5/7

5:25 am-7:10 am

Nonstop3h 45m

Phoenix Sky Harbor Intl

Sun 5/10

11:00 am-5:40 pm

1 stop4h 40m

$277

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Wed 4/15

7:15 pm-9:10 pm

Nonstop3h 55m

Phoenix Sky Harbor Intl

Sun 4/19

5:50 pm-9:45 am

1 stop13h 55m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Mesa

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

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

Currently, January is the cheapest month in which you can book a flight from Illinois to Mesa (average of $63). Flying from Illinois to Mesa in July is currently the most expensive (average of $134). 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 MS9?

Find hourly flight availability from Illinois to Mesa. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 21, 2026.

One of the essential ways to save on airfare from Illinois to Mesa is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 14% on airfare.

What is the cheapest day to fly from Illinois to Mesa?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Mesa. Price data was last updated on March 14, 2026.

Travelers seeking maximum savings on their Illinois to Mesa flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Illinois to Mesa

Explore weekly flight availability from Illinois to Mesa. 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 March 21, 2026.

The most flights from USIL to MS9 are scheduled on a Saturday (55 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (38 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois to Mesa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Mesa?

    There are many flights that can get you from Illinois to Mesa in 3h 45m. Fly via Southwest, United Airlines, or Delta to get the fastest option. The distance from Illinois to Mesa is about 1440 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Mesa one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $39. Users have also found prices from $54 and $79 on Allegiant Air and Spirit Airlines, respectively.

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

    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 Mesa.

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

    Before booking your flight to Mesa from Illinois, check out the most reliable airlines to get you to your destination on time: Austrian Airlines (88%), United Airlines (84%), Air Canada( 83%).

  • What are the cheapest flights from Illinois to Mesa?

    On average you can expect to pay $717 for a flight from Illinois to Mesa. The cheapest flight overall is $51 while the most popular route, (Chicago O'Hare Intl - Phoenix Sky Harbor Intl) is currently priced at $133.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Illinois to Mesa (average of $63). Flying from Illinois to Mesa in July is currently the most expensive (average of $134). 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 Mesa

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Top 8 airlines flying from Illinois to Mesa

Discover the top 8 airlines that operate flights from Illinois to Mesa. 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 March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$66Average$242FlexibilityNo cancel feeOn-time88%
FrontierCheapest$66Average$232FlexibilityNo cancel feeOn-time62%
DeltaCheapest$108Average$315FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$154Average$251FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$181Average$417FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$184Average$336FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$194Average$411FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$205Average$327FlexibilityNo cancel feeOn-time63%

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