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 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 Frontier, where a return flight costs $198 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 43 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 $126.

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.

$62 Cheap United Airlines Flights from Chicago to Phoenix Sky Harbor Intl Airport

CHI - PHX

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

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals

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

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, May 16 - Sat, May 23

1:25 pm - 3:30 pm

ORD

PHX

4h 05mnonstop

4:21 pm - 12:44 am

PHX

ORD

6h 23m

1 stop

$169United Airlines

Sat, Apr 11 - Fri, Apr 17

8:10 pm - 10:15 pm

ORD

PHX

4h 05mnonstop

3:30 pm - 11:28 pm

PHX

ORD

5h 58m

1 stop

$180United Airlines

Sat, Apr 18 - Tue, Apr 21

8:10 pm - 10:15 pm

ORD

PHX

4h 05mnonstop

9:02 am - 2:40 pm

PHX

ORD

3h 38mnonstop

$184United Airlines

Fri, Apr 10 - Mon, Apr 13

8:10 pm - 10:15 pm

ORD

PHX

4h 05mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$191United Airlines

Sat, May 2 - Wed, May 6

8:23 pm - 10:29 pm

ORD

PHX

4h 06mnonstop

4:20 pm - 9:54 pm

PHX

ORD

3h 34mnonstop

$197United Airlines

Sat, May 9 - Sat, May 9

7:20 am - 9:23 am

ORD

PHX

4h 03mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$203United Airlines

Sat, Mar 7 - Tue, Mar 10

4:11 pm - 7:19 pm

ORD

PHX

4h 08mnonstop

5:31 pm - 10:59 pm

PHX

ORD

3h 28mnonstop

$204United Airlines

Tue, Apr 14 - Sat, Apr 18

11:08 am - 1:11 pm

ORD

PHX

4h 03mnonstop

2:28 pm - 8:01 pm

PHX

ORD

3h 33mnonstop

$208United Airlines

Sun, Jun 14 - Sat, Jun 20

9:28 pm - 11:22 pm

ORD

PHX

3h 54mnonstop

11:50 pm - 5:17 am

PHX

ORD

3h 27mnonstop

$210United Airlines

Fri, Apr 24 - Sun, Apr 26

7:20 am - 9:22 am

ORD

PHX

4h 02mnonstop

11:59 pm - 5:29 am

PHX

ORD

3h 30mnonstop

$217United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$62
Average price round-trip	$330

Best time to beat the crowds with an average 9% 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 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 Frontier, where a return flight costs $198 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 $106 for a return flight and $43 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 43 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 $126.
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

Good9,289 verified ratings

7.7Boarding

7.3Comfort

7.1Entertainment

6.6Food

8.1Crew

8.0 Very good

Verified traveler, Feb 2026

NRT

KUL

Provide some Asian movies.....Chinese or Taiwan or some of the International films winners and better documentaries

6.0 Okay

Verified traveler, Feb 2026

HNL

NRT

Both the WIFI and entertainment did not work for 2.5h

2.0 Poor

Saachi, Feb 2026

IAH

NRT

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

10.0 Wonderful

Srinivas, Feb 2026

BOS

IAH

Very old flight - time to retire it for newer airplanes

2.0 Poor

Melanie, Feb 2026

BOS

EWR

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

2.0 Poor

Christopher, Feb 2026

BOS

EWR

Flight landed 2 hours late

10.0 Wonderful

Verified traveler, Feb 2026

AMS

ORD

No real complaints. The in flight food was much better than I expected. The in flight entertainment was excellent.

10.0 Wonderful

Maria, Feb 2026

YEG

IAH

From pre boarding to flight attendant, crew and baggage handler, excellent. Didn’t lost my luggage like West jet.

2.0 Poor

Annie Caroline, Feb 2026

SFO

LAX

Very disappointing given gate agent behavior. Filed a formal complaint with United.

6.0 Okay

Irene, Feb 2026

SAT

IAH

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

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

Airlines

Cabin class

Complete your trip

Flights to other cities

Return flight deals

United Airlines flights

Other airlines flying from Chicago to Phoenix Sky Harbor Intl Airport

Frontier flights from Chicago to Phoenix Sky Harbor Intl Airport

CHI - PHX

$62 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 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 Frontier, where a return flight costs $198 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 $106 for a return flight and $43 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 43 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 $126.

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.

United Airlines Customer Reviews

Traveler rating:

Sort by:

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

Flights to other popular destinations

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.

Find deals for your return flight

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.