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 $35. American Airlines flights start at $107 while deals on Delta start at $108 one-way.

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

The most flights from MS9 to ORD are scheduled on a Friday (66 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (50 on average).

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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).

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 $1,081, our data shows the cheapest flight currently is $141. When looking at the most popular route, (Phoenix Sky Harbor Intl - Chicago O'Hare Intl), you can expect to pay $187 for that flight.

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: Qatar Airways (84%), Aer Lingus (84%), Finnair( 84%).

What are the most popular airlines that fly from Mesa to Chicago O'Hare Intl Airport?

Consider American Airlines, United Airlines or Frontier when booking your flight. These represent the most popular airlines when flying from Mesa to Chicago O'Hare Intl Airport.

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.

Find Cheap Flights from Mesa to Chicago O'Hare Intl Airport

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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 Thursday or Friday and return on a Saturday

Find flight deals from Mesa to O'Hare Intl

Popular in	June
Cheapest in	January
Average price	$325

Highest demand for flights based on searches. 15% potential increase in price ($54 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Everything you need to know about your flight from Mesa to Chicago O'Hare Intl Airport

Prices

Airlines

What is the cheapest time of day to fly from MS9 to ORD?

Unlike at noon, when flights are generally more expensive, you can save up to 18% 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?

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

Reviews of airlines servicing O'Hare Intl

See what other customers who have flown with Southwest,United Airlines, andJetBlue 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

7.9

Good

4,220 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Southwest

7.9

Good

4,220 reviews

Southwest

7.9

Good

4,220 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

United Airlines

7.4

Good

10,351 reviews

Southwest

7.9

Good

4,220 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

JetBlue

7.1

Good

3,044 reviews

Southwest

7.9

Good

4,220 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

American Airlines

7.0

Good

12,150 reviews

Southwest

7.9

Good

4,220 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Frontier

5.5

Fair

2,542 reviews

Southwest

7.9

Good

4,220 reviews

Reviews

1 / 20

6.0

Good

Reza,Jun 2026

TPA - MDW

The seats were super cramped and couldn’t move without hitting other passengers

Related info for your journey

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 $35. American Airlines flights start at $107 while deals on Delta start at $108 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: Qatar Airways (84%), Aer Lingus (84%), Finnair( 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 $1,081, our data shows the cheapest flight currently is $141. When looking at the most popular route, (Phoenix Sky Harbor Intl - Chicago O'Hare Intl), you can expect to pay $187 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.

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Top 6 airlines flying from Mesa to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$57	Average$184	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$118	Average$293	FlexibilityNo cancel fee	On-timeN/A
JetBlue	Cheapest$173	Average$288	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$187	Average$303	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$194	Average$341	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$210	Average$338	FlexibilityNo cancel fee	On-time71%

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

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

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Mesa to O'Hare Intl

Popular in

Cheapest in

Average price

Cheapflights Insights

What is the cheapest time of day to fly from MS9 to ORD?

Unlike at noon, when flights are generally more expensive, you can save up to 18% 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?

Travelers seeking maximum savings on their Mesa to Chicago O'Hare Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday 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

The most flights from MS9 to ORD are scheduled on a Friday (66 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (50 on average).

Reviews of airlines servicing O'Hare Intl

See what other customers who have flown with Southwest,United Airlines, andJetBlue 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.

Related info for your journey

What are the cheapest airlines to fly from Mesa to Chicago O'Hare Intl Airport one-way?

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

What are the cheapest flights from Mesa to Chicago O'Hare Intl Airport?

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

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

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

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

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Complete your trip

Complete your trip to O'Hare Intl by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Mesa to O'Hare Intl by cabin class

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Other flights to O'Hare Intl

Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 12, 2026.

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