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Mesa

$49+ 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 1/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — PHX
ene. 3 — ene. 101
sáb. 1/3
sáb. 1/10
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 diciembre 4, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/127:25 amORD - PHX
1 stop15h 53mFrontier
sáb. 1/1712:20 pmPHX - ORD
Nonstop3h 32mFrontier
Deal found 12/3$130
This Super.com deal was found by Cheapflights users on 12/3. 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.
jue. 12/119:53 pmORD - PHX
Nonstop3h 54mFrontier
sáb. 1/2412:19 pmPHX - ORD
Nonstop3h 32mFrontier
Deal found 12/3$137
This Cheapflightsfares deal was found by Cheapflights users on 12/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/258:21 pmORD - PHX
1 stop29h 07mFrontier
sáb. 1/101:05 pmPHX - ORD
Nonstop3h 36mFrontier
Deal found 12/1$140
This Super.com deal was found by Cheapflights users on 12/3. 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.
jue. 12/119:53 pmORD - PHX
Nonstop3h 54mFrontier
sáb. 1/1712:20 pmPHX - ORD
Nonstop3h 32mFrontier
Deal found 12/3$141
This Frontier deal was found by Cheapflights users on 12/2. 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.
jue. 12/119:53 pmORD - PHX
Nonstop3h 54mFrontier
dom. 2/156:00 amPHX - ORD
Nonstop3h 39mFrontier
Deal found 12/2$143
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
dom. 12/147:00 amORD - PHX
1 stop26h 06mFrontier
jue. 12/253:40 pmPHX - ORD
Nonstop3h 43mFrontier
Deal found 12/2$144
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/258:21 pmORD - PHX
1 stop29h 07mFrontier
jue. 1/810:19 amPHX - ORD
Nonstop3h 38mFrontier
Deal found 12/2$146
This Frontier deal was found by Cheapflights users on 12/2. 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.
dom. 12/2110:50 pmMDW - PHX
1 stop10h 31mFrontier
mar. 12/236:00 amPHX - MDW
Nonstop3h 19mFrontier
Deal found 12/2$147
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
lun. 12/158:36 amORD - PHX
2 stops34h 55mFrontier
jue. 12/253:40 pmPHX - ORD
Nonstop3h 43mFrontier
Deal found 12/2$149
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/196:00 amORD - PHX
1 stop10h 18mFrontier
vie. 1/92:15 pmPHX - ORD
Nonstop3h 43mFrontier
Deal found 12/2$151
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
mié. 12/313:51 pmORD - PHX
1 stop9h 44mFrontier
jue. 1/810:19 amPHX - ORD
Nonstop3h 38mFrontier
Deal found 12/2$152
This Kiwi.com deal was found by Cheapflights users on 12/2. 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.
lun. 12/86:15 amMDW - PHX
Nonstop4h 04mMultiple Airlines
mar. 12/97:43 pmPHX - MDW
2 stops12h 03mMultiple Airlines
Deal found 12/2$156

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 diciembre 4, 2025.

Round-trip from

$130
(Frontier)

One-way from

$49
(Kiwi.com)

Popular in

March

Cheapest in

August

Average price

$297
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. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 diciembre 4, 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

jue. 1/22

5:05 am-8:15 am

Nonstop4h 10m

Phoenix Sky Harbor Intl

sáb. 2/14

5:15 am-9:30 am

Nonstop3h 15m

$133

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

jue. 1/8

4:25 pm-7:25 pm

Nonstop4h 00m

Phoenix Sky Harbor Intl

lun. 1/12

9:05 am-1:30 pm

Nonstop3h 25m

$133

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

sáb. 2/7

2:55 pm-5:50 pm

Nonstop3h 55m

Phoenix Sky Harbor Intl

sáb. 2/14

4:10 pm-8:20 pm

Nonstop3h 10m

$147

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

mar. 1/13

8:15 am-1:35 pm

1 stop6h 20m

Phoenix Sky Harbor Intl

sáb. 1/17

4:55 pm-9:10 pm

Nonstop3h 15m

$149

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

mié. 2/18

3:07 pm-11:40 pm

1 stop9h 33m

Phoenix Sky Harbor Intl

mar. 2/24

4:27 pm-11:59 pm

1 stop6h 32m

$157

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

mié. 1/7

9:00 am-7:25 pm

1 stop11h 25m

Phoenix Sky Harbor Intl

mar. 1/13

8:24 am-11:37 pm

1 stop14h 13m

$157

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

mié. 2/25

2:10 pm-7:55 pm

1 stop6h 45m

Phoenix Sky Harbor Intl

sáb. 2/28

5:15 am-9:30 am

Nonstop3h 15m

$163

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

sáb. 2/28

8:45 pm-11:40 pm

Nonstop3h 55m

Phoenix Sky Harbor Intl

mié. 3/4

12:05 pm-7:05 pm

2 stops6h 00m

$168

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

mié. 1/14

9:00 am-7:25 pm

1 stop11h 25m

Phoenix Sky Harbor Intl

vie. 1/23

3:45 pm-11:37 pm

1 stop6h 52m

$178

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mié. 1/7

9:00 am-2:25 pm

2 stops6h 25m

Phoenix Sky Harbor Intl

mié. 1/14

1:20 pm-5:10 pm

Nonstop2h 50m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

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 March is currently the most expensive (average of $140). 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 diciembre 4, 2025.

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 34% 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 December 16, 2024.

Travelers seeking maximum savings on their Illinois to Mesa flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday 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 diciembre 4, 2025.

The most flights from USIL to MS9 are scheduled on a Thursday (44 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 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 4h 10m. Fly via Southwest, Alaska Airlines, or United 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 $49. Users have also found prices from $54 and $66 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: Gulf Air (84%), American Airlines (80%), Aer Lingus( 80%).

  • What are the cheapest flights from Illinois to Mesa?

    On average you can expect to pay $802 for a flight from Illinois to Mesa. The cheapest flight overall is $40 while the most popular route, (Chicago O'Hare Intl - Phoenix Sky Harbor Intl) is currently priced at $64.

  • 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 March is currently the most expensive (average of $140). 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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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 diciembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$69Average$211FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$98Average$221FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$119Average$247FlexibilityNo cancel feeOn-time88%
Alaska AirlinesCheapest$154Average$231FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$178Average$336FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$185Average$379FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$194Average$443FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$206Average$363FlexibilityNo cancel feeOn-time63%
DeltaCheapest$236Average$394FlexibilityNo cancel feeOn-timeN/A

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