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 $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 Frontier, where a return flight costs $216 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 25 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 March and August, where tickets cost $268 and $309 respectively.

$88 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

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 23 - Wed, Jun 3

9:28 pm - 11:22 pm

ORD

PHX

3h 54mnonstop

11:50 pm - 5:17 am

PHX

ORD

3h 27mnonstop

$182United Airlines

Wed, Apr 29 - Mon, May 4

2:35 pm - 6:45 pm

ORD

PHX

6h 10m

1 stop

11:30 pm - 5:01 am

PHX

ORD

3h 31mnonstop

$188United Airlines

Tue, May 26 - Sat, May 30

9:28 pm - 11:22 pm

ORD

PHX

3h 54mnonstop

4:21 pm - 12:44 am

PHX

ORD

6h 23m

1 stop

$192United Airlines

Mon, Apr 20 - Mon, Apr 27

8:15 pm - 10:20 pm

ORD

PHX

4h 05mnonstop

11:59 pm - 5:29 am

PHX

ORD

3h 30mnonstop

$199United Airlines

Mon, Apr 20 - Mon, Apr 27

2:35 pm - 6:45 pm

ORD

PHX

6h 10m

1 stop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$205United Airlines

Sat, May 30 - Thu, Jun 4

7:05 am - 12:25 pm

ORD

PHX

7h 20m

1 stop

5:49 pm - 11:31 pm

PHX

ORD

3h 42mnonstop

$209United Airlines

Tue, Apr 28 - Fri, May 1

7:20 am - 9:22 am

ORD

PHX

4h 02mnonstop

4:35 pm - 10:09 pm

PHX

ORD

3h 34mnonstop

$221United Airlines

Thu, Jun 4 - Tue, Jun 9

9:28 pm - 11:22 pm

ORD

PHX

3h 54mnonstop

10:06 am - 7:00 pm

PHX

ORD

6h 54m

1 stop

$225United Airlines

Sat, May 16 - Sat, May 23

12:40 pm - 5:08 pm

ORD

PHX

6h 28m

1 stop

5:49 pm - 11:31 pm

PHX

ORD

3h 42mnonstop

$227United Airlines

Mon, May 18 - 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

$230United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$88
Average price round-trip	$397
Good deal one-way	$504

Best time to beat the crowds with an average 8% drop in price.

Most popular time to fly with an average 24% increase in price.

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

(avg. price over the last 2 weeks)

or less

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 $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 Frontier, where a return flight costs $216 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 $148 for a return flight and $54 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 25 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 March and August, where tickets cost $268 and $309 respectively.

7.4

Good9,484 verified ratings

7.3Comfort

7.7Boarding

7.1Entertainment

6.6Food

8.1Crew

8.0 Very good

Verified traveler, Mar 2026

BOI

DEN

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

10.0 Wonderful

Verified traveler, Mar 2026

NRT

EWR

Good

2.0 Poor

Dale, Mar 2026

SFO

TPA

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

10.0 Wonderful

Verified traveler, Mar 2026

IAH

BNA

We had excellent customer service despite the chaos at George Bush airport in Houston!

8.0 Very good

Verified traveler, Mar 2026

MUC

SFO

We got to get extended leg room in Econ plus that was great. It was nice having our own dietary needs met with our meals, and the connecting flights had it as well. Only negative were the seats my bottom was/is really sore after a ten plus hour flight. Those seats are horrible, understandable for as many people use them. So we are going to purchase a gel seat pad.

2.0 Poor

Verified traveler, Mar 2026

IAH

MUC

One of the worst experiences

6.0 Okay

Verified traveler, Mar 2026

AKL

SFO

Hard to sit in that hard chair so long.

6.0 Okay

Verified traveler, Mar 2026

IAH

LRD

It isvvery small flight. No leg room . No space to put my personal item at feet.

4.0 Mediocre

jeffrey, Mar 2026

KIX

SFO

Flight to Japan was was better across the board than the return to USA. Entertainment: Movie selection was old and not to my liking. Way too many woke choices. Not enough selections for sports or drama. Service: some of the crew were great. Not all. I paid for business class. a premium. Some of the crew thought they 'had' t do there job instead of wanting to serve and be polite. Food: Way to Japan was good. Way back to USA bad. Boarding: Wat out did not offer Business only; had to go thru general. If you pay for business, you should get business perks. Suggest you look for other than United for travel to Asia

8.0 Very good

Verified traveler, Mar 2026

DCA

SFO

Average. Nothing out of the ordinary

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

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CHI - PHX

$88 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 $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 Frontier, where a return flight costs $216 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 $148 for a return flight and $54 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 25 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 March and August, where tickets cost $268 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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