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$62+ 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 7/23. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Jun 20 — Jun 271
Fri 6/20
Fri 6/27
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 June 15, 2025.

Round-trip from

$201
(FlightHub)

One-way from

$62
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$274
From Mesa to Illinois
Search Deals
One-way flight from Mesa to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($14 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 15, 2025.

This FlightHub deal was found by Cheapflights users on 6/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:12 pmPHX - ORD
1 stop9h 31mSpirit Airlines
Sat 9/133:21 pmORD - PHX
1 stop21h 56mSpirit Airlines
Deal found 6/14$201
This FlightHub deal was found by Cheapflights users on 6/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/217:29 pmPHX - MDW
1 stop17h 27mFrontier
Sun 6/228:38 pmMDW - PHX
Nonstop3h 49mFrontier
Deal found 6/13$201
This Frontier deal was found by Cheapflights users on 6/12. 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 7/46:00 amPHX - ORD
1 stop12h 56mFrontier
Fri 7/182:15 pmORD - PHX
Nonstop4h 06mFrontier
Deal found 6/12$203
This FlightHub deal was found by Cheapflights users on 6/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2512:12 pmPHX - ORD
1 stop9h 31mMultiple Airlines
Sun 9/282:54 pmORD - PHX
Nonstop4h 00mMultiple Airlines
Deal found 6/13$205
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Wed 8/1312:35 pmPHX - ORD
Nonstop3h 41mUnited Airlines
Sun 8/178:05 pmORD - PHX
Nonstop3h 50mUnited Airlines
Deal found 6/12$208
This Southwest deal was found by Cheapflights users on 6/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/146:20 pmPHX - MDW
Nonstop3h 20mSouthwest
Tue 8/266:40 amMDW - PHX
Nonstop3h 40mSouthwest
Deal found 6/13$208
This American Airlines deal was found by Cheapflights users on 6/12. 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.
Fri 7/1112:38 amPHX - ORD
1 stop6h 13mAmerican Airlines
Sat 7/1210:06 amORD - PHX
Nonstop3h 46mAmerican Airlines
Deal found 6/12$212
This Southwest deal was found by Cheapflights users on 6/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/75:05 amPHX - ORD
1 stop7h 00mSouthwest
Tue 8/123:00 pmORD - PHX
Nonstop3h 50mSouthwest
Deal found 6/13$228
This CheapOair deal was found by Cheapflights users on 6/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/157:18 amPHX - STL
1 stop23h 53mMultiple Airlines
Mon 7/2110:47 amSTL - PHX
1 stop13h 47mMultiple Airlines
Deal found 6/14$228
This Mytrip deal was found by Cheapflights users on 6/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/269:46 pmPHX - STL
1 stop17h 18mSpirit Airlines
Sun 6/296:36 pmSTL - PHX
1 stop27h 45mSpirit Airlines
Deal found 6/13$229
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:30 pmPHX - ORD
1 stop20h 20mAlaska Airlines
Sun 10/58:20 amORD - PHX
1 stop8h 57mAlaska Airlines
Deal found 6/13$236
This Delta deal was found by Cheapflights users on 6/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1410:19 amPHX - MDW
1 stop9h 30mDelta
Tue 8/264:25 pmMDW - PHX
1 stop6h 56mDelta
Deal found 6/13$237

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 June 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 - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 9/4

12:12 pm-11:43 pm

1 stop9h 31m

Chicago O'Hare Intl

Sat 9/13

3:21 pm-11:17 am

1 stop21h 56m

$201

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Sat 6/21

7:29 pm-2:56 pm

1 stop17h 27m

Chicago Midway

Sun 6/22

8:38 pm-10:27 pm

Nonstop3h 49m

$201

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Fri 7/4

6:00 am-8:56 pm

1 stop12h 56m

Chicago O'Hare Intl

Fri 7/18

2:15 pm-4:21 pm

Nonstop4h 06m

$203

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Mon 7/28

5:11 pm-10:55 pm

Nonstop3h 44m

Chicago O'Hare Intl

Thu 7/31

11:21 am-4:02 pm

1 stop6h 41m

$204

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 8/13

12:35 pm-6:16 pm

Nonstop3h 41m

Chicago O'Hare Intl

Sun 8/17

8:05 pm-9:55 pm

Nonstop3h 50m

$208

PhoenixChicago

PHX - MDW

PHXMDW

Phoenix Sky Harbor Intl

Thu 8/14

6:20 pm-11:40 pm

Nonstop3h 20m

Chicago Midway

Tue 8/26

6:40 am-8:20 am

Nonstop3h 40m

$208

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Fri 7/11

12:38 am-8:51 am

1 stop6h 13m

Chicago O'Hare Intl

Sat 7/12

10:06 am-11:52 am

Nonstop3h 46m

$212

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 8/7

5:05 am-2:05 pm

1 stop7h 00m

Chicago O'Hare Intl

Tue 8/12

3:00 pm-4:50 pm

Nonstop3h 50m

$228

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Tue 7/15

7:18 am-9:11 am

1 stop23h 53m

Lambert-St Louis

Mon 7/21

10:47 am-10:34 pm

1 stop13h 47m

$228

PhoenixSt. Louis

PHX - STL

PHXSTL

Phoenix Sky Harbor Intl

Thu 6/26

9:46 pm-5:04 pm

1 stop17h 18m

Lambert-St Louis

Sun 6/29

6:36 pm-8:21 pm

1 stop27h 45m

$229

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

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 June 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 June 15, 2025.

The most flights from MS9 to USIL are scheduled on a Sunday (55 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (51 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 15, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Mesa to Illinois. 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,285 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,958 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,499 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,793 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.1

Food

7.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $62. However, be on the lookout for offers from Frontier and Alaska 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: Japan Airlines (95%), SWISS (92%), Aer Lingus( 90%).

  • What are the cheapest flights from Mesa to Illinois?

    Looking for the cheapest flight from Mesa to Illinois? While on average our users pay $1,566, our data indicates the cheapest price to be $115. The most popular route (Phoenix Sky Harbor Intl - Chicago O'Hare Intl), is priced around $171.

  • 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 7 airlines flying from Mesa to Illinois

Discover the top 7 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 June 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$199FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$79Average$214FlexibilityNo cancel feeOn-time65%
Allegiant AirCheapest$128Average$227FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$165Average$378FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$167Average$474FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$197Average$367FlexibilityNo cancel feeOn-time63%
DeltaCheapest$216Average$294FlexibilityNo cancel feeOn-timeN/A

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