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 $325 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 $159 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 45 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.

$119 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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Recent round-trip United Airlines flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Sat, Apr 18 - Sat, Apr 18

12:55 pm - 2:58 pm

ORD

PHX

4h 03mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$212United Airlines

Tue, Apr 14 - Sat, Apr 18

9:10 am - 11:20 am

ORD

PHX

4h 10mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$227United Airlines

Sat, Apr 18 - Sat, May 9

7:20 am - 9:22 am

ORD

PHX

4h 02mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$237United Airlines

Wed, May 6 - Sat, May 9

7:55 pm - 10:01 pm

ORD

PHX

4h 06mnonstop

2:51 pm - 8:25 pm

PHX

ORD

3h 34mnonstop

$246United Airlines

Wed, Apr 8 - Wed, Apr 15

2:05 pm - 6:45 pm

ORD

PHX

6h 40m

1 stop

12:48 pm - 6:27 pm

PHX

ORD

3h 39mnonstop

$247United Airlines

Tue, Apr 21 - Fri, Apr 24

7:20 am - 9:22 am

ORD

PHX

4h 02mnonstop

7:00 am - 12:36 pm

PHX

ORD

3h 36mnonstop

$250United Airlines

Sat, Apr 18 - Mon, Apr 20

8:15 pm - 10:20 pm

ORD

PHX

4h 05mnonstop

11:59 pm - 5:29 am

PHX

ORD

3h 30mnonstop

$251United Airlines

Wed, May 27 - Mon, Jun 1

9:42 pm - 11:36 pm

ORD

PHX

3h 54mnonstop

11:50 pm - 5:17 am

PHX

ORD

3h 27mnonstop

$252United Airlines

Tue, Aug 4 - Tue, Aug 11

8:13 pm - 10:10 pm

ORD

PHX

3h 57mnonstop

4:28 pm - 10:05 pm

PHX

ORD

3h 37mnonstop

$255United Airlines

Mon, May 18 - Sat, May 23

9:45 pm - 11:53 pm

ORD

PHX

4h 08mnonstop

5:49 pm - 11:31 pm

PHX

ORD

3h 42mnonstop

$256United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$119
Average price round-trip	$388
Good deal one-way	$515

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

(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 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 $325 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 $159 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 $138 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 45 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

Good9,431 verified ratings

7.3Comfort

6.6Food

7.7Boarding

7.1Entertainment

8.1Crew

2.0 Poor

Verified traveler, Mar 2026

STL

IAD

I lost my bag

6.0 Okay

Jamie, Mar 2026

LAX

EWR

OK, we were delayed and had to de plane and reboard.

10.0 Wonderful

Joe, Mar 2026

BOS

VIE

Food was not good.

10.0 Wonderful

Verified traveler, Mar 2026

TPA

IAD

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

2.0 Poor

Mary Ann, Mar 2026

EWR

MCO

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

2.0 Poor

Mary Ann, Mar 2026

YYZ

EWR

Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.

2.0 Poor

phuong, Mar 2026

SFO

LAS

bad bad customer service

2.0 Poor

phuong, Mar 2026

TPE

SFO

Terrible experience! delay 2 time and say i dont have ticket

4.0 Mediocre

Verified traveler, Mar 2026

BGR

EWR

Both my flight where delayed Had 25min to make it to my transfer flight

6.0 Okay

Verified traveler, Mar 2026

FRA

ORD

Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.

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

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CHI - PHX

$119 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 $325 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 $159 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 $138 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 45 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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