How far in advance should I book tickets for a flight with United Airlines from Chicago to Phoenix Sky Harbor Intl Airport?

Generally, when trying to get a below average price for your ticket, try to book around 9 days before departure. For the cheapest possible price, our data suggests booking 82 days before departure.

Is United Airlines the cheapest airline to fly with from Chicago to Phoenix Sky Harbor Intl Airport?

With an average price of $337 return, United Airlines is not the cheapest airline to fly from Chicago to Phoenix Sky Harbor Intl Airport with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $217 on average.

Does United Airlines fly direct to Phoenix Sky Harbor Intl Airport from Chicago?

Yes, United Airlines does offer direct flights for the route, with around 29 flights per week.

What’s the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines?

On average, the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines is Tuesday, when prices are around $81. The most expensive day is generally Saturday, where the average price is around $125.

What’s the cheapest month to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines?

The cheapest month for United Airlines flights to Phoenix Sky Harbor Intl Airport from Chicago is generally January, where plane tickets cost $139 on average. If possible, try to avoid the most expensive months of December and August, where tickets cost $243 and $309 respectively.

$89 Cheap United Airlines Flights from Chicago to Phoenix Sky Harbor Intl Airport

CHI - PHX

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Flight Deals

Cheap United Airlines Flight Deals from Chicago to Phoenix Sky Harbor Intl Airport

Here are some of the best deals found on KAYAK recently from United Airlines for round-trip flights from Chicago to Phoenix Sky Harbor Intl Airport that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip United Airlines flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Sat, Jan 10 - Sat, Jan 17

9:25 am - 12:35 pm

ORD

PHX

4h 10mnonstop

8:10 am - 12:44 pm

PHX

ORD

3h 34mnonstop

$177United Airlines

Sat, Jan 17 - Wed, Jan 21

4:20 pm - 7:22 pm

ORD

PHX

4h 02mnonstop

12:28 pm - 5:00 pm

PHX

ORD

3h 32mnonstop

$187United Airlines

Wed, Jan 14 - Sat, Jan 17

11:05 am - 2:16 pm

ORD

PHX

4h 11mnonstop

8:10 am - 12:44 pm

PHX

ORD

3h 34mnonstop

$188United Airlines

Wed, Jan 7 - Tue, Jan 13

9:25 am - 12:35 pm

ORD

PHX

4h 10mnonstop

1:57 pm - 6:29 pm

PHX

ORD

3h 32mnonstop

$197United Airlines

Tue, Jan 13 - Tue, Feb 3

9:25 am - 12:35 pm

ORD

PHX

4h 10mnonstop

3:50 pm - 8:24 pm

PHX

ORD

3h 34mnonstop

$199United Airlines

Wed, Jan 7 - Wed, Feb 4

12:55 pm - 3:57 pm

ORD

PHX

4h 02mnonstop

8:15 am - 2:50 pm

PHX

ORD

5h 35m1 stop

$207United Airlines

Tue, Jan 27 - Mon, Feb 2

7:57 pm - 10:59 pm

ORD

PHX

4h 02mnonstop

3:50 pm - 8:24 pm

PHX

ORD

3h 34mnonstop

$208United Airlines

Wed, Jan 14 - Sun, Jan 18

1:55 pm - 7:45 pm

ORD

PHX

6h 50m1 stop

8:10 am - 12:45 pm

PHX

ORD

3h 35mnonstop

$211United Airlines

Fri, Jan 30 - Mon, Feb 2

7:57 pm - 10:59 pm

ORD

PHX

4h 02mnonstop

3:50 pm - 8:24 pm

PHX

ORD

3h 34mnonstop

$217United Airlines

Sat, Feb 28 - Sat, Mar 7

4:10 pm - 7:18 pm

ORD

PHX

4h 08mnonstop

7:15 am - 11:44 am

PHX

ORD

3h 29mnonstop

$218United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$89
Average price round-trip	$365

Best time to beat the crowds with an average 11% drop in price.

Most popular time to fly with an average 17% increase in price.

Flight from Chicago O'Hare Airport to Phoenix Sky Harbor Airport

(price for this month)

When to Book Flights with United Airlines from Chicago to Phoenix Sky Harbor Intl Airport

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with United Airlines from Chicago to Phoenix Sky Harbor Intl Airport?
Generally, when trying to get a below average price for your ticket, try to book around 9 days before departure. For the cheapest possible price, our data suggests booking 82 days before departure.
Is United Airlines the cheapest airline to fly with from Chicago to Phoenix Sky Harbor Intl Airport?
With an average price of $337 return, United Airlines is not the cheapest airline to fly from Chicago to Phoenix Sky Harbor Intl Airport with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $217 on average.
What is the cheapest United Airlines flight from Chicago to Phoenix Sky Harbor Intl Airport?
In the last 3 days, the lowest price for a flight with United Airlines from Chicago to Phoenix Sky Harbor Intl Airport was $88 for a return flight and $56 for a one-way flight.
Does United Airlines fly direct to Phoenix Sky Harbor Intl Airport from Chicago?
Yes, United Airlines does offer direct flights for the route, with around 29 flights per week.
What’s the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines?
On average, the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines is Tuesday, when prices are around $81. The most expensive day is generally Saturday, where the average price is around $125.
What’s the cheapest month to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines?
The cheapest month for United Airlines flights to Phoenix Sky Harbor Intl Airport from Chicago is generally January, where plane tickets cost $139 on average. If possible, try to avoid the most expensive months of December and August, where tickets cost $243 and $309 respectively.

7.4

Good9,094 verified ratings

8.1Crew

7.3Comfort

7.1Entertainment

6.6Food

7.7Boarding

Pros +

Flight was quick and easy. (in 2447 reviews)

Cons -

Have the middle seats vacant. (in 137 reviews)
The space in economy plus. (in 296 reviews)
Also no entertainment (in 1245 reviews)

Show reviews that mention

6.0 Okay

Sue, Dec 2025

SJO

SFO

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

10.0 Wonderful

Bill, Dec 2025

LHR

IAH

Staff on board was excellent. Positive upbeat helpful- like it used to be.

8.0 Very good

Eurico Hiromitsu, Dec 2025

ORD

GRU

Razoavel

8.0 Very good

Eurico Hiromitsu, Dec 2025

HND

ORD

Razoavel

10.0 Wonderful

Michele, Dec 2025

RSW

ORD

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

4.0 Mediocre

David, Dec 2025

AUA

EWR

For an expensive flight to another country, United has a lot of nerve serving pretzels and no meals (unless, of course, you want to buy something to eat). Unacceptable.

8.0 Very good

Steven, Dec 2025

SAN

DEN

The seats are not comfortable and cramped

10.0 Wonderful

Verified traveler, Dec 2025

MCI

IAH

It was great. No change

2.0 Poor

Thrinadh Kumar, Dec 2025

ORD

YYZ

Flight delayed alot

4.0 Mediocre

Thrinadh Kumar, Dec 2025

OGG

ORD

Flight delayed than usual time

Everything you need to know for your flight from Chicago to Phoenix Sky Harbor Intl Airport

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Cabin class

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United Airlines flights

Other airlines flying from Chicago to Phoenix Sky Harbor Intl Airport

Frontier flights from Chicago to Phoenix Sky Harbor Intl Airport

Southwest flights from Chicago to Phoenix Sky Harbor Intl Airport

CHI - PHX

$89 Find Cheap United Airlines Flights from Chicago to Phoenix Sky Harbor Intl Airport

Search hundreds of travel sites at once for deals on United Airlines flights from Chicago to Phoenix Sky Harbor Intl Airport

Cheap United Airlines Flight Deals from Chicago to Phoenix Sky Harbor Intl Airport

Recent round-trip United Airlines flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Recent one-way United Airlines flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Recent last minute United Airlines flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Recent direct United Airlines flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Good to know

When to Book Flights with United Airlines from Chicago to Phoenix Sky Harbor Intl Airport

FAQs for flying to Phoenix Sky Harbor Intl Airport with United Airlines

How far in advance should I book tickets for a flight with United Airlines from Chicago to Phoenix Sky Harbor Intl Airport?

Generally, when trying to get a below average price for your ticket, try to book around 9 days before departure. For the cheapest possible price, our data suggests booking 82 days before departure.

Is United Airlines the cheapest airline to fly with from Chicago to Phoenix Sky Harbor Intl Airport?

With an average price of $337 return, United Airlines is not the cheapest airline to fly from Chicago to Phoenix Sky Harbor Intl Airport with. Instead, for the lowest price, our data suggests flying with Frontier, where a return flight costs $217 on average.

What is the cheapest United Airlines flight from Chicago to Phoenix Sky Harbor Intl Airport?

In the last 3 days, the lowest price for a flight with United Airlines from Chicago to Phoenix Sky Harbor Intl Airport was $88 for a return flight and $56 for a one-way flight.

Does United Airlines fly direct to Phoenix Sky Harbor Intl Airport from Chicago?

Yes, United Airlines does offer direct flights for the route, with around 29 flights per week.

What’s the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines?

On average, the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines is Tuesday, when prices are around $81. The most expensive day is generally Saturday, where the average price is around $125.

What’s the cheapest month to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines?

The cheapest month for United Airlines flights to Phoenix Sky Harbor Intl Airport from Chicago is generally January, where plane tickets cost $139 on average. If possible, try to avoid the most expensive months of December and August, where tickets cost $243 and $309 respectively.

United Airlines Customer Reviews

Pros +

Cons -

Traveler rating:

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Everything you need to know for your flight from Chicago to Phoenix Sky Harbor Intl Airport

Other airlines flying from Chicago to Phoenix Sky Harbor Intl Airport

Flight deals from the most popular airlines with KAYAK users flying the route

Cabin class types available on flights to Phoenix Sky Harbor Intl Airport

Cabin classes available on flights to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Phoenix Sky Harbor Intl Airport with a hotel stay or car rental

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The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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Top United Airlines flights

The most popular destinations for flights with United Airlines according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.