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 42 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 $135.

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.

$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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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

7:20 am - 9:23 am

ORD

PHX

4h 03mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$237United Airlines

Tue, May 12 - Sat, May 16

11:05 am - 1:10 pm

ORD

PHX

4h 05mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$246United Airlines

Sat, May 9 - Mon, May 11

9:45 pm - 11:53 pm

ORD

PHX

4h 08mnonstop

11:30 pm - 5:01 am

PHX

ORD

3h 31mnonstop

$251United Airlines

Tue, May 12 - Wed, May 13

11:05 am - 1:10 pm

ORD

PHX

4h 05mnonstop

11:30 pm - 5:01 am

PHX

ORD

3h 31mnonstop

$255United Airlines

Tue, May 12 - Sat, May 16

12:40 pm - 5:08 pm

ORD

PHX

6h 28m

1 stop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$256United Airlines

Sat, May 9 - Sat, May 16

9:45 pm - 11:53 pm

ORD

PHX

4h 08mnonstop

12:48 pm - 6:27 pm

PHX

ORD

3h 39mnonstop

$257United Airlines

Tue, May 5 - Thu, May 7

7:55 pm - 10:01 pm

ORD

PHX

4h 06mnonstop

2:51 pm - 8:25 pm

PHX

ORD

3h 34mnonstop

$260United Airlines

Sat, May 9 - Mon, May 11

9:45 pm - 11:53 pm

ORD

PHX

4h 08mnonstop

3:30 pm - 10:58 pm

PHX

ORD

5h 28m

1 stop

$261United Airlines

Sun, May 24 - Wed, May 27

1:18 pm - 3:07 pm

ORD

PHX

3h 49mnonstop

10:06 am - 7:00 pm

PHX

ORD

6h 54m

1 stop

$265United Airlines

Wed, May 6 - Sat, May 9

9:45 pm - 11:53 pm

ORD

PHX

4h 08mnonstop

7:00 am - 12:36 pm

PHX

ORD

3h 36mnonstop

$266United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$119
Average price round-trip	$297

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

Most popular time to fly with an average 25% 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 42 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 $135.
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

Good9,582 verified ratings

7.7Boarding

7.1Entertainment

8.1Crew

7.3Comfort

6.6Food

10.0 Wonderful

Hartaj, Apr 2026

SFO

RDU

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

10.0 Wonderful

Verified traveler, Apr 2026

LIS

IAD

very surprised by the quality of the food

4.0 Mediocre

Verified traveler, Apr 2026

HNL

LAX

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

6.0 Okay

Verified traveler, Apr 2026

GUM

HNL

It was a more comfortable seat don't get stuck in middle, makes for uncomfortable situation

6.0 Okay

Verified traveler, Apr 2026

MNL

GUM

Comfort, don't think I will fly United again not worth the money to be packed in like a sardine.

8.0 Very good

Verified traveler, Apr 2026

IAD

FRA

Vegetarian selection could be better. Bread was too hard to chew.

6.0 Okay

Verified traveler, Apr 2026

MUC

EWR

Business class would have been better , poor quality blanket , services

10.0 Wonderful

Verified traveler, Apr 2026

SFO

PPT

Confort, service excellents!

10.0 Wonderful

Andrea, Apr 2026

IAH

EZE

Overall it was not too bad.

10.0 Wonderful

Andrea, Apr 2026

LHR

IAH

First time flying with UA and it was a great experience. Thank you

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

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$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 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 42 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 $135.

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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