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O'Hare Intl

$87+ Cheap flights from Mesa, AZ to O'Hare Intl (ORD)

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Mesa to Chicago O'Hare Intl are usually found in January or February, booked 79 days in advance, depart on a Thursday or Friday and return on a Wednesday

Cheap flight deals from Mesa to O'Hare Intl

Keep the following information in mind while searching for Mesa to O'Hare Intl flight deals. Data was last updated September 16, 2025.

Round-trip from

$137
(Cheapflightsfares)

One-way from

$87
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$248
From Mesa to Chicago O'Hare Intl
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One-way flight from Mesa to Chicago O'Hare Intl
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Highest demand for flights based on searches. 3% potential increase in price ($11 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 September 2025
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Find flight deals from Mesa to O'Hare Intl

Cheapest flights from Mesa to O'Hare Intl
Explore the most affordable flight options available from Mesa to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 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 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 10/25:06 pmPHX - ORD
Nonstop3h 34mFrontier
Fri 10/36:00 amORD - PHX
1 stop6h 14mFrontier
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 9/14. 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 11/68:08 pmPHX - ORD
Nonstop3h 35mFrontier
Sun 11/93:30 pmORD - PHX
Nonstop4h 04mFrontier
Deal found 9/14$140
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 10/233:30 pmPHX - ORD
Nonstop3h 40mFrontier
Wed 10/297:20 amORD - PHX
1 stop6h 55mFrontier
Deal found 9/14$142
This Flightnetwork deal was found by Cheapflights users on 9/16. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:59 pmPHX - ORD
1 stop25h 54mFrontier
Mon 10/271:53 pmORD - PHX
Nonstop3h 56mFrontier
Deal found 9/16$144
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.
Fri 10/179:59 pmPHX - ORD
1 stop23h 54mFrontier
Mon 10/206:00 amORD - PHX
1 stop19h 54mFrontier
Deal found 9/14$147
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.
Fri 11/76:00 amPHX - ORD
1 stop9h 56mFrontier
Mon 11/106:00 amORD - PHX
1 stop6h 25mFrontier
Deal found 9/14$149
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.
Fri 10/3111:55 amPHX - ORD
1 stop10h 21mFrontier
Sun 11/25:00 amORD - PHX
1 stop6h 25mFrontier
Deal found 9/14$150
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 11/138:08 pmPHX - ORD
Nonstop3h 35mFrontier
Fri 11/143:30 pmORD - PHX
Nonstop4h 04mFrontier
Deal found 9/16$151

Cheapflights Fare Finder

 
Customize your flight search to find flights from Mesa to O'Hare Intl 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 16, 2025.
Use the filters below to find and compare flights from Mesa to Chicago O'Hare Intl Airport that are best for you.

Fly from

Mesa

Fly to

O'Hare Intl

Route

Depart

Return

Price

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 12/4

1:45 pm-6:18 pm

Nonstop3h 33m

Chicago O'Hare Intl

Sat 12/6

4:05 pm-7:03 pm

Nonstop3h 58m

$208

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 10/22

4:55 pm-10:20 pm

Nonstop3h 25m

Chicago O'Hare Intl

Sat 10/25

6:15 am-10:15 am

1 stop6h 00m

$234

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 10/29

12:40 am-8:30 am

1 stop5h 50m

Chicago O'Hare Intl

Sun 11/2

5:08 am-10:40 am

1 stop6h 32m

$237

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 10/30

12:40 am-9:03 am

1 stop6h 23m

Chicago O'Hare Intl

Sun 11/2

5:08 am-10:40 am

1 stop6h 32m

$237

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 10/28

12:40 am-8:30 am

1 stop5h 50m

Chicago O'Hare Intl

Sat 12/13

6:00 am-11:53 am

1 stop6h 53m

$237

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Fri 12/12

2:18 pm-9:24 pm

1 stop6h 06m

Chicago O'Hare Intl

Mon 12/15

6:00 am-2:00 pm

1 stop9h 00m

$237

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 12/3

12:59 am-8:40 am

1 stop6h 41m

Chicago O'Hare Intl

Sun 12/7

6:00 am-11:53 am

1 stop6h 53m

$237

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Fri 11/7

12:59 am-9:03 am

1 stop7h 04m

Chicago O'Hare Intl

Tue 11/11

5:32 am-1:16 pm

1 stop8h 44m

$237

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 10/22

9:50 am-6:41 pm

1 stop6h 51m

Chicago O'Hare Intl

Sat 10/25

4:56 pm-9:28 pm

1 stop6h 32m

$237

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 10/29

6:35 am-3:20 pm

1 stop6h 45m

Chicago O'Hare Intl

Sat 12/13

3:05 pm-6:00 pm

Nonstop3h 55m

$238

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 results
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Best time to book a flight from Mesa to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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 Chicago O'Hare Intl Airport

How far ahead should I book a flight from Mesa to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Mesa to O'Hare Intl. Price data was last updated on September 12, 2025.

The price you pay for your flight from Mesa to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 79 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Mesa to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Mesa to Chicago O'Hare Intl Airport (average of $245). Flying from Mesa to Chicago O'Hare Intl Airport 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 ORD?

Find hourly flight availability from Mesa to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Mesa to Chicago O'Hare Intl Airport as you normally would.

What is the cheapest day to fly from Mesa to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Mesa to O'Hare Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Mesa to Chicago O'Hare Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Mesa to Chicago O'Hare Intl Airport

Explore weekly flight availability from Mesa to O'Hare Intl. 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 16, 2025.

The most flights from MS9 to ORD are scheduled on a Monday (53 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 on average).

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated September 16, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines from Mesa to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
8,019 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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
3,174 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Food

7.0

Comfort

8.0

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 O'Hare Intl. 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 Chicago O'Hare Intl Airport?

    Departing from Mesa to Chicago O'Hare Intl Airport will take you 3h 25m. There are 1436 mi between Mesa and Chicago O'Hare Intl Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most reliable airlines from Mesa to Chicago O'Hare Intl Airport?

    Before booking your flight to Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport?

    While on average a flight from Mesa to Chicago O'Hare Intl Airport is generally $866, our data shows the cheapest flight currently is $88. When looking at the most popular route, (Phoenix Sky Harbor Intl - Chicago O'Hare Intl), you can expect to pay $142 for that flight.

  • Can I find deals for flights from Mesa to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Mesa to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Mesa to O'Hare Intl?

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

  • Can I find deals for business class flights from Mesa to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Mesa to O'Hare Intl 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 Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Mesa to Chicago O'Hare Intl Airport (average of $245). Flying from Mesa to Chicago O'Hare Intl Airport 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

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Orland Park
Beloit
Racine
Rockford
Oak Brook
Elk Grove Village
Downers Grove
Naperville
Evanston
Merrillville
Bridgeview
Warrenville

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Mesa to O'Hare Intl

Discover the top 5 airlines that operate flights from Mesa to O'Hare Intl. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$78Average$208FlexibilityNo cancel feeOn-time65%
FrontierCheapest$99Average$208FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$189Average$313FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$190Average$336FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$205Average$346FlexibilityNo cancel feeOn-time63%

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