HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Mesa

$89+ 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 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Mesa 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 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 June 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 6/8. 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 8/231:06 pm
MLI
-
PHX
1 stop24h 18m
Multiple Airlines
Wed 8/267:45 am
PHX
-
MLI
1 stop26h 31m
Multiple Airlines
Deal found 6/8$235
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 8/116:34 pm
STL
-
PHX
1 stop27h 10m
Frontier
Thu 8/139:58 pm
PHX
-
STL
1 stop18h 17m
Frontier
Deal found 6/5$236
This Southwest deal was found by Cheapflights users on 6/8. 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 7/295:25 am
MDW
-
PHX
Nonstop3h 35m
Southwest
Tue 8/1111:35 am
PHX
-
MDW
1 stop5h 25m
Southwest
Deal found 6/8$237
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 10/234:00 pm
ORD
-
PHX
Nonstop3h 59m
Frontier
Thu 10/297:04 pm
PHX
-
ORD
Nonstop3h 29m
Frontier
Deal found 6/7$237
This Super.com deal was found by Cheapflights users on 6/7. 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.
Wed 7/812:11 pm
MDW
-
PHX
1 stop9h 33m
Frontier
Sat 7/119:50 pm
PHX
-
MDW
1 stop11h 17m
Frontier
Deal found 6/7$238
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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.
Thu 10/154:00 pm
ORD
-
PHX
Nonstop3h 59m
Frontier
Mon 10/195:55 pm
PHX
-
ORD
1 stop9h 47m
Frontier
Deal found 6/7$238
This Frontier deal was found by Cheapflights users on 6/8. 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 10/114:00 pm
ORD
-
PHX
Nonstop3h 59m
Frontier
Thu 10/157:04 pm
PHX
-
ORD
Nonstop3h 29m
Frontier
Deal found 6/8$239
This Expedia deal was found by Cheapflights users on 6/4. 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.
Sat 7/411:59 am
MDW
-
PHX
1 stop12h 21m
Frontier
Sat 7/119:50 pm
PHX
-
MDW
1 stop11h 17m
Frontier
Deal found 6/4$240
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Sat 8/291:30 pm
ORD
-
PHX
1 stop5h 40m
United Airlines
Mon 8/316:20 am
PHX
-
ORD
Nonstop3h 39m
United Airlines
Deal found 6/8$240
This Delta deal was found by Cheapflights users on 6/8. 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 9/175:10 pm
MDW
-
PHX
1 stop7h 32m
Delta
Mon 9/2111:59 pm
PHX
-
MDW
1 stop7h 54m
Delta
Deal found 6/8$241
This Delta deal was found by Cheapflights users on 6/8. 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 10/85:20 pm
ORD
-
PHX
1 stop7h 54m
Delta
Wed 10/1410:05 am
PHX
-
ORD
1 stop5h 52m
Delta
Deal found 6/8$241
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Mon 8/107:10 pm
STL
-
PHX
1 stop19h 49m
Frontier
Sat 8/159:04 am
PHX
-
STL
2 stops30h 33m
Frontier
Deal found 6/8$241

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 June 9, 2026.

Round-trip from

$235
(Kiwi.com)

One-way from

$89
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$335
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 ($17 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 June 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 June 9, 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

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Fri 7/3

7:59 pm-12:23 pm

1 stop18h 24m

Phoenix Sky Harbor Intl

Sat 7/11

3:13 pm-1:21 pm

1 stop20h 08m

$255

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Wed 8/19

10:10 am-1:00 pm

1 stop4h 50m

Phoenix Sky Harbor Intl

Tue 8/25

8:20 am-1:35 pm

Nonstop3h 15m

$272

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Wed 7/1

10:25 am-12:22 pm

Nonstop3h 57m

Phoenix Sky Harbor Intl

Sat 7/4

1:31 pm-9:39 pm

1 stop6h 08m

$274

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Wed 7/1

5:25 am-7:00 am

Nonstop3h 35m

Phoenix Sky Harbor Intl

Sat 7/4

8:00 am-2:50 pm

1 stop4h 50m

$281
Quickest round-trip

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sun 8/23

5:40 am-7:15 am

Nonstop3h 35m

Phoenix Sky Harbor Intl

Mon 8/24

6:00 am-11:20 am

Nonstop3h 20m

$282

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Thu 8/27

8:00 am-11:50 am

1 stop5h 50m

Phoenix Sky Harbor Intl

Sun 8/30

6:40 am-11:55 am

Nonstop3h 15m

$287

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 8/25

5:20 pm-9:32 pm

1 stop6h 12m

Phoenix Sky Harbor Intl

Tue 9/1

11:45 am-8:30 pm

1 stop6h 45m

$295

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 7/21

5:00 am-9:00 am

1 stop6h 00m

Phoenix Sky Harbor Intl

Wed 7/22

1:28 pm-7:10 pm

Nonstop3h 42m

$295

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sun 7/12

5:00 am-9:00 am

1 stop6h 00m

Phoenix Sky Harbor Intl

Tue 7/21

1:28 pm-7:10 pm

Nonstop3h 42m

$295

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Thu 7/9

5:15 am-9:05 am

1 stop5h 50m

Phoenix Sky Harbor Intl

Tue 7/14

5:45 pm-11:10 pm

Nonstop3h 25m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/5

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 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 June 9, 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 13% on airfare.

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 June 9, 2026.

The most flights from USIL to MS9 are scheduled on a Monday (52 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (41 on average).

How much does it cost to fly round-trip from Illinois to Mesa?

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 June 8, 2026.

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

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 57m. Fly via Alaska Airlines, Southwest, or United Airlines to get the fastest option. The distance from Illinois to Mesa is about 1436 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 $35. Users have also found prices from $77 and $98 on JetBlue and American 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: Frontier (91%), Volaris (91%), United Airlines( 79%).

  • What are the cheapest flights from Illinois to Mesa?

    On average you can expect to pay $814 for a flight from Illinois to Mesa. The cheapest flight overall is $127 while the most popular route, (Chicago O'Hare Intl - Phoenix Sky Harbor Intl) is currently priced at $177.

  • 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.

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 Mesa

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Las Vegas flights
Seattle to Las Vegas flights
Newark to Las Vegas flights
O'Hare Intl to Las Vegas flights
Hobby to Las Vegas flights
San Francisco to Las Vegas flights
John F Kennedy Intl to Las Vegas flights
Atlanta to Las Vegas flights
Los Angeles to Las Vegas flights
Dulles Intl to Las Vegas flights
George Bush Intcntl to Las Vegas flights
Detroit to Las Vegas flights
LaGuardia to Las Vegas flights
Boston to Las Vegas flights
Orlando to Las Vegas flights
Baltimore to Las Vegas flights
Reagan-National to Las Vegas flights
Denver to Las Vegas flights
Seattle to Sky Harbor Intl flights
Santa Ana to Las Vegas flights
O'Hare Intl to Sky Harbor Intl flights
Midway to Las Vegas flights
Cleveland to Las Vegas flights
Austin to Las Vegas flights
Fort Lauderdale to Las Vegas flights
Newark to Sky Harbor Intl flights
Philadelphia to Las Vegas flights
Burbank to Las Vegas flights
John F Kennedy Intl to Sky Harbor Intl flights
San Jose to Las Vegas flights
Charlotte to Las Vegas flights
Minneapolis to Las Vegas flights
San Antonio to Las Vegas flights
San Diego to Las Vegas flights
Sky Harbor Intl to Las Vegas flights
Tampa to Las Vegas flights
Love Field to Las Vegas flights
Dallas/Fort Worth to Sky Harbor Intl flights
Cincinnati to Las Vegas flights
Boston to Sky Harbor Intl flights
Portland to Las Vegas flights
Ontario to Las Vegas flights
Dulles Intl to Sky Harbor Intl flights
Honolulu to Las Vegas flights
St. Louis to Las Vegas flights
Detroit to Sky Harbor Intl flights
Sacramento to Las Vegas flights
Indianapolis to Las Vegas flights
Denver to Sky Harbor Intl flights
Raleigh to Las Vegas flights

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 June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$223FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$79Average$232FlexibilityNo cancel feeOn-time88%
DeltaCheapest$108Average$296FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$184Average$387FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$188Average$328FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$196Average$412FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$203Average$331FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$212Average$251FlexibilityNo cancel feeOn-time75%

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.