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Mesa

$54+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
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 February 5, 2026.

This Frontier deal was found by Cheapflights users on 2/2. 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.
Fri 2/208:58 pm
MDW
-
PHX
Nonstop4h 10m
Frontier
Thu 2/267:23 pm
PHX
-
MDW
Nonstop3h 18m
Frontier
Deal found 2/2$122
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Thu 4/166:09 pm
ORD
-
PHX
1 stop7h 27m
Frontier
Sat 4/1812:05 pm
PHX
-
ORD
Nonstop3h 36m
Frontier
Deal found 2/2$122
This Travelocity deal was found by Cheapflights users on 2/2. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:00 am
MDW
-
PHX
1 stop13h 29m
Frontier
Mon 4/209:22 am
PHX
-
MDW
Nonstop3h 27m
Frontier
Deal found 2/2$123
This Frontier deal was found by Cheapflights users on 2/2. 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.
Wed 4/155:01 am
ORD
-
PHX
1 stop14h 28m
Frontier
Sat 4/1812:05 pm
PHX
-
ORD
Nonstop3h 36m
Frontier
Deal found 2/2$123
This Southwest deal was found by Cheapflights users on 2/1. 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 4/255:10 am
MDW
-
PHX
Nonstop3h 45m
Southwest
Sat 5/211:55 pm
PHX
-
MDW
Nonstop3h 05m
Southwest
Deal found 2/1$124
This Super.com deal was found by Cheapflights users on 2/3. 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.
Fri 2/277:32 pm
MDW
-
PHX
Nonstop4h 07m
Frontier
Mon 3/27:36 pm
PHX
-
MDW
Nonstop3h 18m
Frontier
Deal found 2/3$125
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 3/38:20 am
ORD
-
PHX
1 stop8h 25m
Multiple Airlines
Tue 3/1010:24 am
PHX
-
ORD
Nonstop3h 35m
Multiple Airlines
Deal found 2/1$125
This Trip.com deal was found by Cheapflights users on 2/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:15 am
MDW
-
PHX
Nonstop3h 57m
Frontier
Tue 4/218:00 am
PHX
-
MDW
1 stop9h 31m
Frontier
Deal found 2/3$126
This Cheapflightsfares deal was found by Cheapflights users on 2/3. 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.
Sun 2/2212:56 pm
ORD
-
PHX
Nonstop4h 13m
Frontier
Wed 2/2512:31 pm
PHX
-
ORD
Nonstop3h 32m
Frontier
Deal found 2/3$126
This Cheapflightsfares deal was found by Cheapflights users on 2/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/288:05 am
ORD
-
PHX
1 stop16h 39m
Frontier
Wed 3/46:51 pm
PHX
-
ORD
1 stop27h 23m
Frontier
Deal found 2/4$127
This Frontier deal was found by Cheapflights users on 2/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/27:25 pm
MDW
-
PHX
Nonstop4h 07m
Frontier
Thu 3/57:33 pm
PHX
-
MDW
Nonstop3h 18m
Frontier
Deal found 2/4$128
This Cheapflightsfares deal was found by Cheapflights users on 2/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/249:05 am
ORD
-
PHX
Nonstop4h 14m
Frontier
Fri 2/2710:19 am
PHX
-
ORD
Nonstop3h 35m
Frontier
Deal found 2/4$128

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 February 5, 2026.

Round-trip from

$122
(Frontier)

One-way from

$54
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$264
From Illinois to Mesa
Search Deals
One-way flight from Illinois to Mesa
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($11 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 February 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 February 5, 2026.
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

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sat 4/4

7:20 am-9:22 am

Nonstop4h 02m

Phoenix Sky Harbor Intl

Tue 4/7

6:00 pm-11:30 pm

Nonstop3h 30m

$182

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Fri 3/6

9:30 pm-12:25 am

Nonstop3h 55m

Phoenix Sky Harbor Intl

Wed 3/11

11:55 pm-5:00 am

Nonstop3h 05m

$197

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Sat 3/7

8:10 pm-11:00 pm

Nonstop3h 50m

Phoenix Sky Harbor Intl

Mon 3/9

11:55 pm-5:00 am

Nonstop3h 05m

$197

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Sat 3/7

8:10 pm-11:18 pm

Nonstop4h 08m

Phoenix Sky Harbor Intl

Fri 3/20

6:55 pm-6:20 am

1 stop9h 25m

$207

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

Tue 3/3

5:05 am-8:15 am

Nonstop4h 10m

Phoenix Sky Harbor Intl

Tue 3/17

3:10 pm-8:25 pm

Nonstop3h 15m

$217

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Fri 4/24

7:20 am-9:22 am

Nonstop4h 02m

Phoenix Sky Harbor Intl

Wed 4/29

12:43 pm-6:22 pm

Nonstop3h 39m

$217

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Fri 4/3

9:30 pm-11:36 pm

Nonstop4h 06m

Phoenix Sky Harbor Intl

Thu 4/9

11:59 pm-5:29 am

Nonstop3h 30m

$217

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Wed 4/15

7:45 am-9:40 am

Nonstop3h 55m

Phoenix Sky Harbor Intl

Sat 4/18

4:55 pm-10:20 pm

Nonstop3h 25m

$217

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Fri 4/10

7:20 am-9:22 am

Nonstop4h 02m

Phoenix Sky Harbor Intl

Mon 4/13

6:00 pm-11:30 pm

Nonstop3h 30m

$217

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

Tue 3/24

7:20 pm-9:25 pm

Nonstop4h 05m

Phoenix Sky Harbor Intl

Tue 4/7

6:30 pm-11:55 pm

Nonstop3h 25m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

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, April is the cheapest month in which you can book a flight from Illinois to Mesa (average of $59). Flying from Illinois to Mesa in December is currently the most expensive (average of $130). 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 February 5, 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.

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 January 31, 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. Sunday mornings 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 February 5, 2026.

The most flights from USIL to MS9 are scheduled on a Tuesday (35 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 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 55m. Fly via United Airlines, Southwest, or American Airlines 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 $40. Users have also found prices from $54 and $67 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 (78%), Air Canada (77%), United Airlines( 77%).

  • What are the cheapest flights from Illinois to Mesa?

    On average you can expect to pay $690 for a flight from Illinois to Mesa. The cheapest flight overall is $47 while the most popular route, (Chicago O'Hare Intl - Phoenix Sky Harbor Intl) is currently priced at $100.

  • 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, April is the cheapest month in which you can book a flight from Illinois to Mesa (average of $59). Flying from Illinois to Mesa in December is currently the most expensive (average of $130). 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 Illinois to Mesa

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Top 9 airlines flying from Illinois to Mesa

Discover the top 9 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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$203FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$66Average$227FlexibilityNo cancel feeOn-time88%
Spirit AirlinesCheapest$79Average$208FlexibilityNo cancel feeOn-time65%
DeltaCheapest$108Average$329FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$154Average$231FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$180Average$376FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$184Average$336FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$196Average$419FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$203Average$341FlexibilityNo cancel feeOn-time63%

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