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Illinois

$60+ Cheap flights from Mesa, AZ to Illinois

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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Mesa to Illinois

Keep the following information in mind while searching for Mesa to Illinois flight deals. Data was last updated September 15, 2025.

Round-trip from

$137
(Cheapflightsfares)

One-way from

$60
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$238
From Mesa to Illinois
Search Deals
One-way flight from Mesa to Illinois
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($2 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Mesa to Illinois

Cheapest flights from Mesa to Illinois
Explore the most affordable flight options available from Mesa to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 10/233:30 pmPHX - ORD
Nonstop3h 40mFrontier
Mon 10/271:53 pmORD - PHX
Nonstop3h 56mFrontier
Deal found 9/15$137
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 10/1610:39 amPHX - MDW
Nonstop3h 26mFrontier
Mon 10/2010:56 pmMDW - PHX
Nonstop3h 51mFrontier
Deal found 9/14$137
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/25:06 pmPHX - ORD
Nonstop3h 34mFrontier
Wed 10/87:15 amORD - PHX
1 stop9h 49mFrontier
Deal found 9/13$138
This Frontier deal was found by Cheapflights users on 9/14. 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.
Thu 10/24:35 pmPHX - MDW
Nonstop3h 23mFrontier
Fri 10/34:48 pmMDW - PHX
1 stop8h 06mFrontier
Deal found 9/14$138
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 11/135:35 amPHX - ORD
1 stop6h 48mFrontier
Sun 11/163:30 pmORD - PHX
Nonstop4h 04mFrontier
Deal found 9/14$139
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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 11/68:08 pmPHX - ORD
Nonstop3h 35mFrontier
Sun 11/93:30 pmORD - PHX
Nonstop4h 04mFrontier
Deal found 9/13$140
This Frontier deal was found by Cheapflights users on 9/14. 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.
Thu 10/3010:43 pmPHX - MDW
1 stop10h 47mFrontier
Mon 11/38:30 amMDW - PHX
Nonstop3h 53mFrontier
Deal found 9/14$140
This Frontier deal was found by Cheapflights users on 9/13. 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 10/137:25 amPHX - ORD
Nonstop3h 33mFrontier
Mon 10/206:50 amORD - PHX
1 stop6h 02mFrontier
Deal found 9/13$141
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
Mon 10/134:20 pmPHX - MDW
Nonstop3h 26mFrontier
Mon 10/2010:56 pmMDW - PHX
Nonstop3h 51mFrontier
Deal found 9/13$141
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 10/163:30 pmPHX - ORD
Nonstop3h 40mFrontier
Mon 10/206:23 pmORD - PHX
1 stop20h 54mFrontier
Deal found 9/14$142
This Frontier deal was found by Cheapflights users on 9/14. 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.
Thu 10/2312:02 pmPHX - MDW
1 stop10h 34mFrontier
Sun 10/267:50 amMDW - PHX
Nonstop3h 50mFrontier
Deal found 9/14$143
This Gotogate deal was found by Cheapflights users on 9/15. 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 10/307:45 pmPHX - ORD
Nonstop3h 30mFrontier
Thu 11/61:36 pmORD - PHX
1 stop10h 27mFrontier
Deal found 9/15$144

Cheapflights Fare Finder

 
Customize your flight search to find flights from Mesa to Illinois 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 15, 2025.
Use the filters below to find and compare flights from Mesa to Illinois that are best for you.

Fly from

Mesa

Fly to

Illinois

Route

Depart

Return

Price

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Fri 11/14

5:20 am-9:35 am

Nonstop3h 15m

Chicago Midway

Tue 11/18

10:05 am-1:05 pm

Nonstop4h 00m

$165

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Fri 10/24

6:55 pm-12:10 am

Nonstop3h 15m

Chicago Midway

Fri 10/31

12:50 pm-2:35 pm

Nonstop3h 45m

$196

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Wed 10/29

6:50 pm-12:05 am

Nonstop3h 15m

Chicago Midway

Sat 12/13

5:15 am-8:05 am

Nonstop3h 50m

$199

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Fri 12/12

3:25 pm-7:40 pm

Nonstop3h 15m

Chicago Midway

Tue 12/16

10:05 am-1:05 pm

Nonstop4h 00m

$208

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Fri 10/24

5:00 am-10:15 am

Nonstop3h 15m

Chicago Midway

Mon 10/27

5:45 am-7:30 am

Nonstop3h 45m

$213

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Thu 12/11

5:00 am-9:15 am

Nonstop3h 15m

Chicago Midway

Mon 12/15

5:25 am-8:15 am

Nonstop3h 50m

$217

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 10/14

2:40 pm-8:20 pm

Nonstop3h 40m

Chicago O'Hare Intl

Sat 10/18

7:30 am-9:19 am

Nonstop3h 49m

$219

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Fri 10/31

6:05 pm-11:25 pm

Nonstop3h 20m

Chicago Midway

Sun 11/2

7:45 am-12:35 pm

1 stop5h 50m

$228

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Fri 10/3

6:55 pm-12:10 am

Nonstop3h 15m

Chicago Midway

Mon 10/6

12:40 pm-4:50 pm

1 stop6h 10m

$229

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Sat 10/11

3:41 pm-11:18 pm

1 stop5h 37m

Lambert-St Louis

Sat 10/18

7:31 am-9:05 am

Nonstop3h 34m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 60 results
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Best time to book a flight from Mesa to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Mesa to Illinois (average of $245). Flying from Mesa to Illinois in March is currently the most expensive (average of $321). 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 MS9 to IL?

Find hourly flight availability from Mesa to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

When flying from Mesa to Illinois, 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 Mesa to Illinois

Explore weekly flight availability from Mesa to Illinois. 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 15, 2025.

The most flights from MS9 to USIL are scheduled on a Monday (54 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (45 on average).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated September 15, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Mesa to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,929 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,015 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,172 reviews
Southwest
8.0
Very good
4,242 reviews

Crew

8.6

Comfort

8.0

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Mesa to Illinois. 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 Mesa to Illinois?

    A quick flight from Mesa to Illinois can take about 3h 15m. Southwest provides one of the quickest options available for as low as $165. Airlines will cover a distance of 1440 mi. This flight may include one or multiple stops.

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

    The cheapest airline one-way is Southwest, with whom users have recently found tickets for as low as $65. However, be on the lookout for offers from Frontier and United Airlines, as they are both options that can get you from Mesa to Illinois for a low price.

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

    Most travelers choose Phoenix Sky Harbor Intl - Chicago O'Hare Intl, Phoenix Sky Harbor Intl - Chicago Midway or Phoenix Sky Harbor Intl - Lambert-St Louis when deciding on the best route from Mesa to Illinois.

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

    Before booking your flight to Illinois from Mesa, check out the most reliable airlines to get you to your destination on time: SWISS (89%), Cathay Pacific (89%), Brussels Airlines( 87%).

  • What are the cheapest flights from Mesa to Illinois?

    Looking for the cheapest flight from Mesa to Illinois? While on average our users pay $866, our data indicates the cheapest price to be $88. The most popular route (Phoenix Sky Harbor Intl - Chicago O'Hare Intl), is priced around $147.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Mesa to Illinois (average of $245). Flying from Mesa to Illinois in March is currently the most expensive (average of $321). 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 Mesa to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Mesa to Illinois

Discover the top 6 airlines that operate flights from Mesa to Illinois. 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$78Average$208FlexibilityNo cancel feeOn-time65%
FrontierCheapest$99Average$215FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$128Average$220FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$149Average$320FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$189Average$445FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$202Average$344FlexibilityNo cancel feeOn-time63%

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