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 8 days before departure. For the cheapest possible price, our data suggests booking 81 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 $369 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 $189 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 Friday, when prices are around $79. The most expensive day is generally Thursday, 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 January, where plane tickets cost $129 on average. If possible, try to avoid the most expensive months of July and December, where tickets cost $250 and $259 respectively.

$58 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

Here are some of the best deals found on KAYAK recently from United Airlines for round-trip flights from Chicago to Phoenix Sky Harbor Intl Airport that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Wed, Sep 24 - Tue, Sep 30

7:50 pm - 9:47 pmORD-PHX

3h 57mnonstop

7:00 am - 12:39 pmPHX-ORD

3h 39mnonstop

$115United Airlines

Find Deal

Wed, Sep 24 - Mon, Sep 29

6:00 am - 11:06 amORD-PHX

7h 06m1 stop

6:30 pm - 11:59 pmPHX-ORD

3h 29mnonstop

$121United Airlines

Find Deal

Sun, Aug 10 - Sat, Aug 16

7:30 am - 9:20 amORD-PHX

3h 50mnonstop

11:09 pm - 4:42 amPHX-ORD

3h 33mnonstop

$131United Airlines

Find Deal

Fri, Aug 22 - Mon, Aug 25

6:00 am - 11:06 amORD-PHX

7h 06m1 stop

10:51 am - 4:30 pmPHX-ORD

3h 39mnonstop

$137United Airlines

Find Deal

Fri, Aug 8 - Sun, Aug 10

8:05 pm - 9:55 pmORD-PHX

3h 50mnonstop

11:09 pm - 4:42 amPHX-ORD

3h 33mnonstop

$147United Airlines

Find Deal

Wed, Aug 6 - Wed, Aug 13

9:15 am - 11:09 amORD-PHX

3h 54mnonstop

7:04 am - 12:45 pmPHX-ORD

3h 41mnonstop

$149United Airlines

Find Deal

Wed, Sep 10 - Sun, Sep 14

3:50 pm - 5:39 pmORD-PHX

3h 49mnonstop

7:04 am - 12:43 pmPHX-ORD

3h 39mnonstop

$152United Airlines

Find Deal

Wed, Aug 20 - Wed, Aug 27

6:00 am - 11:06 amORD-PHX

7h 06m1 stop

4:00 pm - 9:30 pmPHX-ORD

3h 30mnonstop

$155United Airlines

Find Deal

Thu, Aug 7 - Sat, Aug 9

7:30 am - 9:20 amORD-PHX

3h 50mnonstop

10:50 am - 4:30 pmPHX-ORD

3h 40mnonstop

$157United Airlines

Find Deal

Fri, Oct 24 - Wed, Oct 29

8:03 pm - 10:00 pmORD-PHX

3h 57mnonstop

11:55 am - 7:40 pmPHX-ORD

5h 45m1 stop

$158United Airlines

Find Deal

Useful Info

Low season	June
High season	March
Cheapest flight	$58
Average price round-trip	$241

Best time to beat the crowds but there is an average 5% increase in price.

Most popular time to fly with an average 32% 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 8 days before departure. For the cheapest possible price, our data suggests booking 81 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 $369 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 $189 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 $171 for a return flight and $106 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 Friday, when prices are around $79. The most expensive day is generally Thursday, 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 January, where plane tickets cost $129 on average. If possible, try to avoid the most expensive months of July and December, where tickets cost $250 and $259 respectively.

7.4

GoodBased on 8,846 verified guest reviews

6.6Food

7.0Entertainment

8.1Crew

7.3Comfort

7.7Boarding

Pros +

Cons -

Show reviews that mention

4.0 Mediocre

Jeanette, Jul 2025

IAD-TPA

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

4.0 Mediocre

Jeanette, Jul 2025

LIS-IAD

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

2.0 Poor

Johnnie, Jul 2025

PTY-EWR

More racist flight attandants maybe because i sm an attracticted darkskin latino man but once again bad flight attamdants they ignored me the whole flight even the woman sitting next to me notice how rude they were towards me i really never want to fly united or american airlines they alawsys have the rudesslt and racist flight attandants

8.0 Very good

yesmy, Jul 2025

EWR-PTY

The food should improve! And The flight should leave on time and not make the traveler wait.

8.0 Very good

Verified traveler, Jul 2025

ORD-SUX

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

10.0 Wonderful

Lawrence, Jul 2025

SFO-BWI

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

10.0 Wonderful

Gal, Jul 2025

TLV-EWR

We loved the United lounge near our gate and a rep named Aimee who was GREAT

10.0 Wonderful

Marcel, Jul 2025

DFW-FRA

A little bit more leg room in premium economy. I am 6’4”.

10.0 Wonderful

Chris, Jul 2025

ORD-DFW

Awesome

8.0 Very good

Johanna, Jul 2025

IAH-ORD

Overall it was good. I missed my connection but I was put on another flight.

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

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CHI - PHX

$58 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?

Is United Airlines the cheapest airline to fly with from Chicago to Phoenix Sky Harbor Intl Airport?

What is the cheapest United Airlines flight from Chicago to Phoenix Sky Harbor Intl Airport?

Does United Airlines fly direct to Phoenix Sky Harbor Intl Airport from Chicago?

What’s the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines?

What’s the cheapest month to fly from Chicago to Phoenix Sky Harbor Intl Airport with United Airlines?

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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Cabin classes available on flights to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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The most popular destinations for flights with United Airlines according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.