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 $331 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 26 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 Monday, 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 $242 and $289 respectively.

$138 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

Wed, Jul 1 - Wed, Jul 8

4:02 pm - 5:53 pm

ORD

PHX

3h 51mnonstop

1:28 pm - 7:10 pm

PHX

ORD

3h 42mnonstop

$265United Airlines

Fri, May 29 - Wed, Jun 3

8:18 pm - 10:15 pm

ORD

PHX

3h 57mnonstop

5:49 pm - 11:31 pm

PHX

ORD

3h 42mnonstop

$267United Airlines

Sat, Jul 11 - Wed, Jul 15

4:02 pm - 5:55 pm

ORD

PHX

3h 53mnonstop

1:28 pm - 7:10 pm

PHX

ORD

3h 42mnonstop

$275United Airlines

Fri, May 29 - Wed, Jun 10

9:43 pm - 11:37 pm

ORD

PHX

3h 54mnonstop

4:21 pm - 12:44 am

PHX

ORD

6h 23m

1 stop

$277United Airlines

Tue, Jun 2 - Wed, Jun 3

1:30 pm - 3:15 pm

ORD

PHX

3h 45mnonstop

5:49 pm - 11:31 pm

PHX

ORD

3h 42mnonstop

$279United Airlines

Wed, May 27 - Mon, Jun 1

1:18 pm - 3:07 pm

ORD

PHX

3h 49mnonstop

4:21 pm - 12:44 am

PHX

ORD

6h 23m

1 stop

$281United Airlines

Sat, Jul 11 - Sat, Jul 18

5:00 am - 9:00 am

ORD

PHX

6h 00m

1 stop

6:50 am - 12:28 pm

PHX

ORD

3h 38mnonstop

$285United Airlines

Wed, Jul 1 - Mon, Jul 6

9:02 am - 11:03 am

ORD

PHX

4h 01mnonstop

2:45 pm - 8:27 pm

PHX

ORD

3h 42mnonstop

$286United Airlines

Wed, Jun 3 - Wed, Jun 17

5:30 am - 10:34 am

ORD

PHX

7h 04m

1 stop

5:49 pm - 11:31 pm

PHX

ORD

3h 42mnonstop

$287United Airlines

Tue, Jun 2 - Wed, Jun 3

5:00 am - 9:00 am

ORD

PHX

6h 00m

1 stop

5:49 pm - 11:31 pm

PHX

ORD

3h 42mnonstop

$289United Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$138
Average price round-trip	$335
Good deal one-way	$721

Best time to beat the crowds with an average 9% drop in price.

Most popular time to fly with an average 23% 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 $331 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 $194 for a return flight and $88 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 26 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 Monday, 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 $242 and $289 respectively.

7.4

Good9,706 verified ratings

7.7Boarding

7.3Comfort

6.6Food

7.1Entertainment

8.1Crew

2.0 Poor

Verified traveler, May 2026

MUC

ORD

The clerk at check in for my bags was very rude. My credit card was hacked during my vacation and she told me it was not possible to pay in cash for my bag. “You bought the cheapest ticket, you should have bought a ticket that included a bag. If you cannot pay with a credit card, we will not let you on this flight”. She spoke to her supervisor and then told me , I could ask other passengers, if they would use their credit card to check my bag. I had to beg 5 different people, till one agreed to use their credit card. I payed them cash of course. This was a very stressful and humiliating experience for me. I strongly suggest you build in some kind of provision for travelers who got robbed.

10.0 Wonderful

Verified traveler, May 2026

IAD

MUC

Excellent! I got to Munich and was transferred to my Lufthansa flight quickly, in 15 to 20 minutes, so I did not miss my flight. However, I had checked my overhead bag at the boarding gate in Tampa. That got to Tunis the next day. That is to be expected.

4.0 Mediocre

ziv, May 2026

LAX

SYD

Mediocre service and conditions. Plastic uncomfortable seats

10.0 Wonderful

Verified traveler, May 2026

TPA

IAD

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

2.0 Poor

Annie, May 2026

SNA

SFO

It was 2 hrs delayed

8.0 Very good

Charlotte, May 2026

IAH

MGM

Flight Crew was superior.

8.0 Very good

Charlotte, May 2026

LAX

IAH

Narrow seats.

10.0 Wonderful

Miriam, May 2026

SJU

IAH

Awesome

10.0 Wonderful

Manoj, May 2026

BRU

MAN

Pretty quick and comfortable trip

4.0 Mediocre

Manoj, May 2026

IAD

BRU

WiFi didn’t exist , seats were super cramped, lights stayed on near my seat for a long time while others were dimmed, the food/trash/drink cart hit my shoulder at least a couple of times while moving, food options were down to just one option by the time it got to my row, the utensils were garbage (knife bent at a couple of places by the time I was done eating) the spoon was very flimsy plastic

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

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CHI - PHX

$138 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 $331 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 $194 for a return flight and $88 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 26 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 Monday, 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 $242 and $289 respectively.

United Airlines Customer Reviews

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

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