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 $330 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 30 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.

$89 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

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

Sat, Feb 28 - Wed, Mar 11

7:55 pm - 11:03 pm

ORD

PHX

4h 08mnonstop

7:26 am - 12:54 pm

PHX

ORD

3h 28mnonstop

$177United Airlines

Sat, Feb 28 - Sat, Mar 7

4:10 pm - 7:18 pm

ORD

PHX

4h 08mnonstop

6:31 pm - 10:59 pm

PHX

ORD

3h 28mnonstop

$197United Airlines

Sun, Mar 1 - Thu, Mar 5

7:55 pm - 11:03 pm

ORD

PHX

4h 08mnonstop

7:15 am - 11:44 am

PHX

ORD

3h 29mnonstop

$214United Airlines

Tue, Mar 3 - Tue, Mar 10

4:10 pm - 7:18 pm

ORD

PHX

4h 08mnonstop

3:35 pm - 11:52 pm

PHX

ORD

6h 17m

1 stop

$216United Airlines

Tue, Mar 31 - Tue, Apr 7

8:10 pm - 10:15 pm

ORD

PHX

4h 05mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$217United Airlines

Sun, Feb 22 - Tue, Mar 3

7:55 pm - 11:03 pm

ORD

PHX

4h 08mnonstop

6:31 pm - 10:59 pm

PHX

ORD

3h 28mnonstop

$219United Airlines

Wed, Feb 25 - Tue, Mar 3

4:00 pm - 10:50 pm

ORD

PHX

7h 50m

1 stop

6:31 pm - 10:59 pm

PHX

ORD

3h 28mnonstop

$220United Airlines

Sat, Mar 7 - Sat, Mar 14

8:10 pm - 11:18 pm

ORD

PHX

4h 08mnonstop

3:35 pm - 10:55 pm

PHX

ORD

5h 20m

1 stop

$227United Airlines

Tue, Apr 7 - Tue, Apr 14

3:55 pm - 5:58 pm

ORD

PHX

4h 03mnonstop

2:28 pm - 8:01 pm

PHX

ORD

3h 33mnonstop

$230United Airlines

Fri, Apr 3 - Tue, Apr 7

8:10 pm - 10:15 pm

ORD

PHX

4h 05mnonstop

6:00 pm - 11:30 pm

PHX

ORD

3h 30mnonstop

$237United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$89
Average price round-trip	$288

Best time to beat the crowds with an average 10% drop in price.

Most popular time to fly with an average 18% 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 $330 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 $93 for a return flight and $33 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 30 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

Good9,217 verified ratings

7.7Boarding

8.1Crew

6.6Food

7.3Comfort

7.1Entertainment

2.0 Poor

Mikayla, Jan 2026

IAD

RDU

Terrible flight. Flight was delayed for almost 4 hours

2.0 Poor

James, Jan 2026

ORD

MSP

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

6.0 Okay

Jorge, Jan 2026

SJO

SFO

Everything ok except the delay thanks

6.0 Okay

Osman, Jan 2026

DSM

ORD

Too many flight changes birding pass issues

8.0 Very good

Verified traveler, Jan 2026

ORD

TPA

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

10.0 Wonderful

Verified traveler, Jan 2026

NRT

ORD

This Japanese airline provides great service and very helpful in assisting their passengers.

10.0 Wonderful

Verified traveler, Jan 2026

BKK

NRT

A great experience with excellent service by the crew and attention in assisting the passengers.

10.0 Wonderful

Judith, Jan 2026

SFO

TPA

Wonderful

2.0 Poor

Michael, Jan 2026

IAD

RDU

Two many gate changes and delays.

6.0 Okay

Michael, Jan 2026

GVA

IAD

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

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

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CHI - PHX

$89 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 $330 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 $93 for a return flight and $33 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 30 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.

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

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