HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$78+ 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Mesa to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Mesa to Chicago O'Hare Intl are usually found in January or February, booked 39 days in advance, depart on a Friday or Thursday 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 October 23, 2025.

Round-trip from

$133
(Kiwi.com)

One-way from

$78
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$297
From Mesa to Chicago O'Hare Intl
Search Deals
One-way flight from Mesa to Chicago O'Hare Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 23, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/20. 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.
Sat 11/810:57 amPHX - ORD
1 stop11h 32mFrontier
Sat 11/156:00 amORD - PHX
1 stop8h 13mFrontier
Deal found 10/20$133
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Wed 12/177:43 pmPHX - ORD
1 stop17h 34mFrontier
Wed 12/313:51 pmORD - PHX
1 stop9h 44mFrontier
Deal found 10/21$135
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 12/27:43 pmPHX - ORD
1 stop8h 49mMultiple Airlines
Thu 1/88:48 pmORD - PHX
Nonstop4h 02mMultiple Airlines
Deal found 10/22$136
This CheapOair deal was found by Cheapflights users on 10/21. 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 11/411:50 amPHX - ORD
1 stop12h 09mFrontier
Tue 11/1111:00 amORD - PHX
Nonstop3h 52mFrontier
Deal found 10/21$137
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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.
Wed 11/59:05 pmPHX - ORD
1 stop26h 10mFrontier
Mon 11/103:30 pmORD - PHX
Nonstop4h 04mFrontier
Deal found 10/21$138
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 12/118:06 pmPHX - ORD
Nonstop3h 25mAmerican Airlines
Thu 1/85:00 amORD - PHX
Nonstop4h 00mAmerican Airlines
Deal found 10/23$139
This Cheapflightsfares deal was found by Cheapflights users on 10/23. 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 12/54:13 pmPHX - ORD
Nonstop3h 42mFrontier
Sun 12/73:47 pmORD - PHX
1 stop9h 44mFrontier
Deal found 10/23$140
This Frontier deal was found by Cheapflights users on 10/21. 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 10/317:45 pmPHX - ORD
Nonstop3h 30mFrontier
Sun 11/23:30 pmORD - PHX
Nonstop4h 04mFrontier
Deal found 10/21$141
This American Airlines deal was found by Cheapflights users on 10/23. 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 12/125:30 amPHX - ORD
Nonstop3h 29mAmerican Airlines
Sat 12/138:50 pmORD - PHX
Nonstop4h 02mAmerican Airlines
Deal found 10/23$142
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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
Mon 11/103:30 pmORD - PHX
Nonstop4h 04mFrontier
Deal found 10/21$143
This Cheapflightsfares deal was found by Cheapflights users on 10/21. 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 12/56:00 amPHX - ORD
1 stop7h 40mFrontier
Fri 12/510:05 pmORD - PHX
Nonstop3h 54mFrontier
Deal found 10/21$144
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Wed 11/1211:38 amPHX - ORD
1 stop16h 54mMultiple Airlines
Tue 11/186:05 pmORD - PHX
1 stop16h 26mMultiple Airlines
Deal found 10/21$145

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 October 23, 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

Sun 12/7

6:02 am-11:50 pm

1 stop16h 48m

Chicago O'Hare Intl

Wed 12/10

8:59 pm-7:14 pm

1 stop23h 15m

$170

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Fri 12/12

6:00 am-10:30 pm

1 stop15h 30m

Chicago O'Hare Intl

Sat 12/13

8:55 am-7:14 pm

1 stop11h 19m

$170

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 2/26

6:00 am-5:50 pm

1 stop10h 50m

Chicago O'Hare Intl

Sun 3/1

2:59 pm-11:53 am

1 stop21h 54m

$172

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 12/31

12:42 pm-2:37 pm

1 stop24h 55m

Chicago O'Hare Intl

Mon 1/5

2:12 pm-11:59 pm

2 stops10h 47m

$194

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 11/19

6:00 am-1:54 pm

1 stop6h 54m

Chicago O'Hare Intl

Wed 12/3

3:05 pm-11:59 pm

1 stop9h 54m

$200

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 12/23

8:36 pm-2:37 pm

1 stop17h 01m

Chicago O'Hare Intl

Wed 12/31

8:39 am-3:51 pm

1 stop8h 12m

$204

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 12/11

6:02 am-2:09 pm

1 stop7h 07m

Chicago O'Hare Intl

Thu 1/8

2:06 pm-11:22 pm

2 stops10h 16m

$207

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Sun 12/7

12:59 am-8:40 am

1 stop6h 41m

Chicago O'Hare Intl

Mon 12/8

2:14 pm-11:51 pm

1 stop10h 37m

$211

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 12/16

12:12 pm-11:59 pm

1 stop10h 47m

Chicago O'Hare Intl

Sun 12/21

4:13 pm-10:14 pm

1 stop7h 01m

$212

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Mon 12/22

12:59 am-9:25 am

1 stop7h 26m

Chicago O'Hare Intl

Mon 1/5

6:05 pm-11:54 pm

1 stop6h 49m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 22 results
1
2
3

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 October 17, 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 39 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, March is the cheapest month in which you can book a flight from Mesa to Chicago O'Hare Intl Airport (average of $100). Flying from Mesa to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $192). 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 October 23, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 70% on flights from Mesa to Chicago O'Hare Intl Airport by exploring options for tickets in the evening.

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 Wednesday evenings 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 October 23, 2025.

The most flights from MS9 to ORD are scheduled on a Thursday (51 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 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 October 23, 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
4,236 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

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
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

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
8,995 reviews
Southwest
8.0
Very good
4,236 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

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
11,033 reviews
Southwest
8.0
Very good
4,236 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

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
8,104 reviews
Southwest
8.0
Very good
4,236 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

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
3,128 reviews
Southwest
8.0
Very good
4,236 reviews

Comfort

8.0

Entertainment

7.5

Boarding

8.1

Crew

8.6

Food

7.0

Overall

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 16h 48m. There are 1436 mi between Mesa and Chicago O'Hare Intl Airport.

  • 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: Aer Lingus (86%), Brussels Airlines (85%), Royal Jordanian( 84%).

  • 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 $1,000, our data shows the cheapest flight currently is $85. When looking at the most popular route, (Phoenix Sky Harbor Intl - Chicago O'Hare Intl), you can expect to pay $75 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, March is the cheapest month in which you can book a flight from Mesa to Chicago O'Hare Intl Airport (average of $100). Flying from Mesa to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $192). 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
Des Plaines
Gurnee
Hoffman Estates
Elgin
Oak Brook
Elk Grove Village
Beloit
Rockford
Naperville
Racine
Downers Grove
Orland Park
Merrillville
Bridgeview
Warrenville
Joliet
Waukegan

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$79Average$208FlexibilityNo cancel feeOn-time65%
FrontierCheapest$100Average$211FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$197Average$314FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$199Average$334FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$207Average$352FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.