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 14 days before departure. For the cheapest possible price, our data suggests booking 60 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 $328 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 Allegiant Air, where a return flight costs $215 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 41 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 $136.

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 September, where plane tickets cost $142 on average. If possible, try to avoid the most expensive months of March and August, where tickets cost $242 and $269 respectively.

$128 Cheap United Airlines Flights from Chicago to Phoenix Sky Harbor Intl Airport

CHI - PHX

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

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One-way

Last minute

Direct

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

Wed, May 13 - Sat, May 16

7:20 am - 9:23 am

ORD

PHX

4h 03mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$246United Airlines

Sat, May 23 - Wed, May 27

9:28 pm - 11:22 pm

ORD

PHX

3h 54mnonstop

11:50 pm - 5:17 am

PHX

ORD

3h 27mnonstop

$255United Airlines

Sat, May 16 - Tue, May 19

1:25 pm - 3:30 pm

ORD

PHX

4h 05mnonstop

4:39 pm - 11:57 pm

PHX

ORD

5h 18m

1 stop

$256United Airlines

Mon, May 11 - Sat, May 16

7:20 am - 9:23 am

ORD

PHX

4h 03mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$262United Airlines

Wed, Jun 3 - Tue, Jun 9

6:10 pm - 10:59 pm

ORD

PHX

6h 49m

1 stop

11:50 pm - 5:17 am

PHX

ORD

3h 27mnonstop

$265United Airlines

Tue, May 26 - Mon, Jun 1

9:43 pm - 11:37 pm

ORD

PHX

3h 54mnonstop

11:50 pm - 5:17 am

PHX

ORD

3h 27mnonstop

$271United Airlines

Fri, May 8 - Tue, May 12

4:05 pm - 6:10 pm

ORD

PHX

4h 05mnonstop

4:40 pm - 10:14 pm

PHX

ORD

3h 34mnonstop

$276United Airlines

Fri, May 15 - Sun, May 17

1:10 pm - 3:14 pm

ORD

PHX

4h 04mnonstop

11:30 pm - 5:01 am

PHX

ORD

3h 31mnonstop

$277United Airlines

Thu, Jun 4 - Tue, Jun 9

8:13 pm - 10:10 pm

ORD

PHX

3h 57mnonstop

4:12 pm - 12:45 am

PHX

ORD

6h 33m

1 stop

$281United Airlines

Fri, Jun 5 - Sat, Jun 6

5:45 pm - 10:25 pm

ORD

PHX

6h 40m

1 stop

11:50 pm - 5:17 am

PHX

ORD

3h 27mnonstop

$286United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$128
Average price round-trip	$338

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly with an average 23% 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 14 days before departure. For the cheapest possible price, our data suggests booking 60 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 $328 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 Allegiant Air, where a return flight costs $215 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 $150 for a return flight and $48 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 41 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 $136.
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 September, where plane tickets cost $142 on average. If possible, try to avoid the most expensive months of March and August, where tickets cost $242 and $269 respectively.

7.4

Good9,608 verified ratings

8.1Crew

7.1Entertainment

6.6Food

7.7Boarding

7.3Comfort

10.0 Wonderful

Verified traveler, Apr 2026

SFO

LAX

Seamless.

8.0 Very good

Ken, Apr 2026

DEN

YQR

Putting people that close to the bathroom, where you have to look into the bathroom as people are exiting and entering was not great and the smell was also not great. I know the airlines are desperate for more chairs, but that seat is a crime.

8.0 Very good

Ken, Apr 2026

PVR

DEN

The rear seat on the second leg should be illegal. There’s no way you should make somebody sit that close to the washroom. Very awkward.

2.0 Poor

Verified traveler, Apr 2026

IST

FRA

They cancelled my flight and rebooked for Monday from Saturday without my consent. Putting me in a stressful spot. I have important medical appointments that I can’t miss and work. I tried to contact them to either rebook or request a refund, but I was always 200 or more in line and could never get ahold of customer service the call would always hang up after waiting 2 hours on hold. I’m not sure if I will ever get a refund even though I paid for seats as well, but my only option was to spend more money to rebook with another airline.

10.0 Wonderful

Denise and Scott, Apr 2026

MUC

IAD

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

8.0 Very good

Verified traveler, Apr 2026

SLC

SFO

The plane is always delayed.

10.0 Wonderful

Lorna, Apr 2026

SAN

SFO

Great plane and staff

2.0 Poor

Verified traveler, Apr 2026

CLT

IAD

My bags were misplaced!!! Im in a foreign country with no bags

2.0 Poor

Verified traveler, Apr 2026

DFW

FRA

One day before cancellation

4.0 Mediocre

Verified traveler, Apr 2026

CMH

DEN

The entertainment options on the seat back video boards were nice.

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

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CHI - PHX

$128 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 14 days before departure. For the cheapest possible price, our data suggests booking 60 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 $328 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 Allegiant Air, where a return flight costs $215 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 $150 for a return flight and $48 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 41 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 $136.

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 September, where plane tickets cost $142 on average. If possible, try to avoid the most expensive months of March and August, where tickets cost $242 and $269 respectively.

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

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