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O'Hare Intl

$93+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ORD
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
1 adult, Economy
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1. Tell us where you want to go

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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 Saturday

Cheap 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 March 21, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/171:00 pm
PHX
-
ORD
1 stop9h 52m
Frontier
Sun 4/197:50 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Deal found 3/20$133
This Frontier deal was found by Cheapflights users on 3/20. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:19 am
PHX
-
ORD
Nonstop3h 41m
Frontier
Tue 5/51:59 pm
ORD
-
PHX
1 stop10h 27m
Frontier
Deal found 3/20$134
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/255:17 pm
PHX
-
ORD
1 stop11h 03m
Frontier
Sun 5/37:45 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Deal found 3/17$137
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/185:17 pm
PHX
-
ORD
1 stop10h 33m
Frontier
Fri 4/247:50 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Deal found 3/17$138
This eDestinos deal was found by Cheapflights users on 3/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:47 pm
PHX
-
ORD
1 stop8h 52m
Frontier
Mon 4/136:40 am
ORD
-
PHX
Nonstop4h 10m
Frontier
Deal found 3/17$139
This Kiwi.com deal was found by Cheapflights users on 3/19. 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 4/1812:17 pm
PHX
-
ORD
Nonstop3h 36m
Frontier
Sun 4/197:50 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Deal found 3/19$140
This Frontier deal was found by Cheapflights users on 3/17. 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 4/2411:19 am
PHX
-
ORD
Nonstop3h 41m
Frontier
Sun 4/267:50 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Deal found 3/17$143
This eDestinos deal was found by Cheapflights users on 3/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:08 am
PHX
-
ORD
1 stop29h 04m
Frontier
Sun 4/267:50 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Deal found 3/20$144
This Frontier deal was found by Cheapflights users on 3/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2510:24 am
PHX
-
ORD
Nonstop3h 35m
Frontier
Sun 4/197:50 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Deal found 3/16$145
This Cheapflightsfares deal was found by Cheapflights users on 3/21. 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 4/1611:19 am
PHX
-
ORD
Nonstop3h 41m
Frontier
Mon 4/207:35 am
ORD
-
PHX
Nonstop4h 22m
Frontier
Deal found 3/21$146
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:35 am
PHX
-
ORD
1 stop12h 09m
Frontier
Mon 4/136:40 am
ORD
-
PHX
Nonstop4h 10m
Frontier
Deal found 3/20$147

Find 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 March 21, 2026.

Round-trip from

$133
(Cheapflightsfares)

One-way from

$93
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$289
From Mesa to Chicago O'Hare Intl
Search Deals
One-way flight from Mesa to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($26 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 March 2026
Search Deals

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 March 21, 2026.
Use the filters below to find and compare flights from Mesa to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Sat 5/23

5:49 pm-11:31 pm

Nonstop3h 42m

Chicago O'Hare Intl

Wed 5/27

9:42 pm-11:36 pm

Nonstop3h 54m

$246

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 4/28

6:00 am-2:27 pm

1 stop6h 27m

Chicago O'Hare Intl

Tue 4/28

8:15 pm-10:20 pm

Nonstop4h 05m

$247

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 4/30

11:30 pm-5:01 am

Nonstop3h 31m

Chicago O'Hare Intl

Sat 5/2

7:20 am-9:23 am

Nonstop4h 03m

$257

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Wed 4/22

11:35 am-10:55 pm

2 stops9h 20m

Chicago O'Hare Intl

Sat 4/25

2:05 pm-9:10 pm

2 stops9h 05m

$267
Quickest round-trip

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Fri 4/24

1:25 pm-6:50 pm

Nonstop3h 25m

Chicago O'Hare Intl

Mon 4/27

8:00 am-9:55 am

Nonstop3h 55m

$271

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 4/30

5:45 am-1:55 pm

1 stop6h 10m

Chicago O'Hare Intl

Thu 5/7

7:20 pm-9:15 pm

Nonstop3h 55m

$275

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 3/31

7:20 am-6:26 pm

1 stop9h 06m

Chicago O'Hare Intl

Tue 4/21

8:20 am-2:39 pm

1 stop8h 19m

$291

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Tue 4/21

1:10 pm-10:55 pm

2 stops7h 45m

Chicago O'Hare Intl

Fri 4/24

4:15 pm-9:15 pm

1 stop7h 00m

$291

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Thu 4/9

5:10 am-1:15 pm

1 stop6h 05m

Chicago O'Hare Intl

Mon 4/13

4:50 pm-7:45 am

2 stops16h 55m

$296

PhoenixChicago

PHX - ORD

PHXORD

Phoenix Sky Harbor Intl

Fri 5/1

5:45 am-1:55 pm

1 stop6h 10m

Chicago O'Hare Intl

Fri 5/8

2:40 pm-10:10 pm

2 stops9h 30m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 24 resultsSorted by cheapest first
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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 March 13, 2026.

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, February is the cheapest month in which you can book a flight from Mesa to Chicago O'Hare Intl Airport (average of $58). Flying from Mesa to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $196). 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 March 21, 2026.

Unlike at noon, when flights are generally more expensive, you can save up to 40% on flights from Mesa to Chicago O'Hare Intl Airport by exploring options for tickets in the afternoon.

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 March 14, 2026.

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 March 21, 2026.

The most flights from MS9 to ORD are scheduled on a Friday (59 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (41 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 March 21, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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
4,325 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,325 reviews
Southwest
8.0
Very good
4,325 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,313 reviews
Southwest
8.0
Very good
4,325 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,451 reviews
Southwest
8.0
Very good
4,325 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,488 reviews
Southwest
8.0
Very good
4,325 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,023 reviews
Southwest
8.0
Very good
4,325 reviews

Comfort

8.0

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 42m. 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 cheapest airlines to fly from Mesa to Chicago O'Hare Intl Airport one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $46. Spirit Airlines flights start at $71 while deals on United Airlines start at $96 one-way.

  • 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: Emirates (87%), Cathay Pacific (87%), Iberia( 85%).

  • 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 $897, our data shows the cheapest flight currently is $83. When looking at the most popular route, (Phoenix Sky Harbor Intl - Chicago O'Hare Intl), you can expect to pay $152 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, February is the cheapest month in which you can book a flight from Mesa to Chicago O'Hare Intl Airport (average of $58). Flying from Mesa to Chicago O'Hare Intl Airport in July is currently the most expensive (average of $196). 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
Gurnee
Naperville
Lake Geneva
Hoffman Estates
Delavan
Downers Grove
Des Plaines
Elgin
Oak Brook
South Holland
Elk Grove Village
Libertyville
Waukegan
Beloit
Warrenville
Oakbrook Terrace
Bridgeview
Great Lakes

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 March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$199FlexibilityNo cancel feeOn-time62%
DeltaCheapest$118Average$293FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$187Average$285FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$187Average$314FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$197Average$299FlexibilityNo cancel feeOn-time71%

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