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Mesa

$60+ 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 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Illinois to Mesa

Keep the following information in mind while searching for Illinois to Mesa flight deals. Data was last updated September 11, 2025.

Round-trip from

$142
(Southwest)

One-way from

$60
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$199
From Illinois to Mesa
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One-way flight from Illinois to Mesa
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Highest demand for flights based on searches. 6% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Southwest deal was found by Cheapflights users on 9/10. 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 10/311:30 pmMDW - PHX
1 stop5h 05mSouthwest
Wed 11/56:40 pmPHX - MDW
Nonstop3h 15mSouthwest
Deal found 9/10$142
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/2710:51 amORD - PHX
1 stop11h 28mFrontier
Fri 10/317:45 pmPHX - ORD
Nonstop3h 30mFrontier
Deal found 9/9$142
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sat 10/258:30 amMDW - PHX
Nonstop3h 50mSouthwest
Sat 10/256:50 pmPHX - MDW
Nonstop3h 15mSouthwest
Deal found 9/9$143
This Booking.com deal was found by Cheapflights users on 9/10. 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.
Wed 10/17:20 amORD - PHX
1 stop28h 54mFrontier
Thu 10/25:06 pmPHX - ORD
Nonstop3h 34mFrontier
Deal found 9/10$143
This Booking.com deal was found by Cheapflights users on 9/10. 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.
Tue 10/147:15 amORD - PHX
1 stop16h 40mFrontier
Thu 10/163:30 pmPHX - ORD
Nonstop3h 40mFrontier
Deal found 9/10$144
This Southwest deal was found by Cheapflights users on 9/9. 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.
Tue 10/76:25 amMDW - PHX
Nonstop3h 45mSouthwest
Tue 10/146:50 pmPHX - MDW
Nonstop3h 15mSouthwest
Deal found 9/9$146
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 10/266:50 amORD - PHX
1 stop6h 02mFrontier
Thu 10/307:45 pmPHX - ORD
Nonstop3h 30mFrontier
Deal found 9/11$146
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 10/210:42 amORD - PHX
1 stop8h 31mFrontier
Mon 10/69:05 amPHX - ORD
1 stop12h 54mFrontier
Deal found 9/10$147
This CheapOair deal was found by Cheapflights users on 9/10. 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 11/76:30 amMDW - PHX
1 stop17h 33mFrontier
Fri 11/144:41 pmPHX - MDW
1 stop18h 56mFrontier
Deal found 9/10$148
This CheapOair deal was found by Cheapflights users on 9/10. 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.
Mon 10/209:54 pmORD - PHX
1 stop26h 29mFrontier
Thu 11/68:43 pmPHX - ORD
1 stop26h 32mFrontier
Deal found 9/10$148
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:30 pmMDW - PHX
1 stop21h 20mFrontier
Sat 11/87:32 amPHX - MDW
1 stop26h 58mFrontier
Deal found 9/10$149
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/218:40 pmORD - PHX
Nonstop3h 56mAmerican Airlines
Fri 10/2412:18 amPHX - ORD
Nonstop3h 22mAmerican Airlines
Deal found 9/10$149

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 September 11, 2025.
Use the filters below to find and compare flights from Illinois to Mesa that are best for you.

Fly from

Illinois

Fly to

Mesa

Route

Depart

Return

Price

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Tue 10/7

6:25 am-8:10 am

Nonstop3h 45m

Phoenix Sky Harbor Intl

Tue 10/14

6:50 pm-12:05 am

Nonstop3h 15m

$146

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sat 11/8

7:39 pm-10:41 pm

Nonstop4h 02m

Phoenix Sky Harbor Intl

Tue 11/11

7:03 pm-11:30 pm

Nonstop3h 27m

$149

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Tue 11/11

5:25 am-8:15 am

Nonstop3h 50m

Phoenix Sky Harbor Intl

Tue 11/18

5:00 am-9:15 am

Nonstop3h 15m

$149

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Wed 10/8

9:50 am-11:10 am

Nonstop3h 20m

Phoenix Sky Harbor Intl

Wed 10/29

5:10 am-10:00 am

Nonstop2h 50m

$159

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Wed 10/8

4:00 pm-8:00 pm

1 stop6h 00m

Phoenix Sky Harbor Intl

Tue 10/14

6:50 pm-12:05 am

Nonstop3h 15m

$164

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sat 11/1

4:30 pm-9:25 pm

1 stop6h 55m

Phoenix Sky Harbor Intl

Sat 11/8

9:10 am-4:30 pm

1 stop6h 20m

$168

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Fri 10/3

7:40 pm-9:25 pm

Nonstop3h 45m

Phoenix Sky Harbor Intl

Tue 10/7

4:10 pm-11:35 pm

1 stop5h 25m

$168

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

Tue 10/21

6:35 am-10:40 am

1 stop6h 05m

Phoenix Sky Harbor Intl

Wed 10/22

5:10 am-10:00 am

Nonstop2h 50m

$169

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Fri 11/14

9:50 pm-12:35 am

Nonstop3h 45m

Phoenix Sky Harbor Intl

Tue 11/18

4:05 pm-10:35 pm

1 stop5h 30m

$175

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Fri 10/3

7:40 pm-9:25 pm

Nonstop3h 45m

Phoenix Sky Harbor Intl

Sat 10/4

9:10 am-4:45 pm

1 stop5h 35m

$178

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 results
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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 $258). Flying from Illinois to Mesa 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 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 September 11, 2025.

When flying from Illinois to Mesa, 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 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 September 11, 2025.

The most flights from USIL to MS9 are scheduled on a Monday (49 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (37 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 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: United Airlines (84%), Air Canada (82%), Brussels Airlines( 80%).

  • What are the cheapest flights from Illinois to Mesa?

    On average you can expect to pay $731 for a flight from Illinois to Mesa. The cheapest flight overall is $61 while the most popular route, (Chicago O'Hare Intl - Phoenix Sky Harbor Intl) is currently priced at $102.

  • 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 $258). Flying from Illinois to Mesa 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

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Alternative routes for Illinois to Mesa

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$69Average$202FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$95Average$219FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$114Average$270FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$154Average$212FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$186Average$468FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$187Average$378FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$206Average$366FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$361FlexibilityNo cancel feeOn-timeN/A

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