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 13 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 $326 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 Spirit Airlines, where a return flight costs $190 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 44 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 $134.

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 December and August, where tickets cost $231 and $309 respectively.

$82 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

Sat, May 9 - Sat, May 16

8:28 pm - 10:34 pm

ORD

PHX

4h 06mnonstop

11:30 pm - 5:01 am

PHX

ORD

3h 31mnonstop

$163United Airlines

Sat, Apr 11 - Sat, Apr 11

7:20 am - 9:22 am

ORD

PHX

4h 02mnonstop

3:50 pm - 12:45 am

PHX

ORD

6h 55m

1 stop

$193United Airlines

Sat, May 2 - Sat, May 9

11:05 am - 1:10 pm

ORD

PHX

4h 05mnonstop

11:30 pm - 5:01 am

PHX

ORD

3h 31mnonstop

$197United Airlines

Sat, Apr 25 - Sun, May 3

8:15 pm - 10:20 pm

ORD

PHX

4h 05mnonstop

11:30 pm - 5:01 am

PHX

ORD

3h 31mnonstop

$200United Airlines

Sat, Apr 4 - Sat, Apr 11

7:20 am - 9:22 am

ORD

PHX

4h 02mnonstop

3:50 pm - 12:45 am

PHX

ORD

6h 55m

1 stop

$213United Airlines

Tue, Apr 14 - Sat, Apr 18

3:55 pm - 5:58 pm

ORD

PHX

4h 03mnonstop

9:02 am - 2:40 pm

PHX

ORD

3h 38mnonstop

$217United Airlines

Sun, Apr 12 - Sat, Apr 18

7:20 am - 9:22 am

ORD

PHX

4h 02mnonstop

12:48 pm - 6:27 pm

PHX

ORD

3h 39mnonstop

$220United Airlines

Sat, May 9 - Tue, May 12

8:28 pm - 10:34 pm

ORD

PHX

4h 06mnonstop

12:48 pm - 6:27 pm

PHX

ORD

3h 39mnonstop

$230United Airlines

Sat, Apr 11 - Sat, Apr 25

7:20 am - 9:22 am

ORD

PHX

4h 02mnonstop

2:48 pm - 8:21 pm

PHX

ORD

3h 33mnonstop

$231United Airlines

Wed, May 20 - Sat, May 23

9:45 pm - 11:53 pm

ORD

PHX

4h 08mnonstop

4:21 pm - 12:44 am

PHX

ORD

6h 23m

1 stop

$234United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$82
Average price round-trip	$387

Best time to beat the crowds with an average 7% drop in price.

Most popular time to fly with an average 22% 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 13 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 $326 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 Spirit Airlines, where a return flight costs $190 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 $126 for a return flight and $51 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 44 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 $134.
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 December and August, where tickets cost $231 and $309 respectively.

7.4

Good9,409 verified ratings

7.1Entertainment

7.3Comfort

7.7Boarding

6.6Food

8.1Crew

2.0 Poor

Jeff, Mar 2026

OPO

EWR

I paid $7,000 to fly round trip to Porto. I thought it was for business class. But on the leg from Miami to Newark, and again from Newark to Miami, i was in coach. One time in the middle seat of coach. From Newark to Porto I was in business class as expected, and it was fine. I fly to Portugal once per month, often paying $5,000 for business class. Usually i fly American Airlines. I'd be happy to fly more with United Airlines. But my experience was disappointing because i was put in the coach for almost half the flights.

8.0 Very good

Verified traveler, Mar 2026

SGN

HND

Good

2.0 Poor

Michael, Mar 2026

RSW

IAH

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

2.0 Poor

Dina, Mar 2026

MSN

EWR

The flight was freezing, loud and bright

6.0 Okay

Verified traveler, Mar 2026

SFO

DEN

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

6.0 Okay

Flavius, Mar 2026

LAX

IAH

They forgot my pre-ordered meal.

10.0 Wonderful

Matthew, Mar 2026

SFO

PDX

Short flight, easy going staff

10.0 Wonderful

Matthew, Mar 2026

TPE

SFO

Great flight, great price, can’t go wrong!

4.0 Mediocre

Olga, Mar 2026

IAD

TYS

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

6.0 Okay

Olga, Mar 2026

FRA

IAD

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

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

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CHI - PHX

$82 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 13 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 $326 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 Spirit Airlines, where a return flight costs $190 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 $126 for a return flight and $51 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 44 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 $134.

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 December and August, where tickets cost $231 and $309 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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