How does KAYAK find such low prices on flights from Illinois to Phoenix?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Phoenix.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Phoenix?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Phoenix?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phoenix with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Phoenix?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phoenix from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$122 CHEAP FLIGHTS from Illinois to Phoenix (PHX)

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Flight Deals

Cheap Flights from Illinois to Phoenix

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Phoenix

Fri, Feb 19 - Tue, Feb 23

5:40 am - 2:03 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 23m1 stop Los Angeles

6:40 pm - 7:05 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

11h 25m1 stop Los Angeles

$256Frontier

Mon, Feb 8 - Sat, Feb 13

8:14 pm - 11:23 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 09mnonstop

2:32 pm - 7:09 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$256Frontier

Fri, Feb 5 - Wed, Feb 10

2:13 pm - 10:37 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 24m1 stop San Diego

1:38 pm - 11:59 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

9h 21m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Sun, Nov 22 - Mon, Nov 23

12:37 pm - 11:25 amRFD Chicago Greater Rockford-PHX Phoenix Sky Harbor Intl

23h 48m1 stop Las Vegas Harry Reid Intl

8:59 pm - 11:32 amPHX Phoenix Sky Harbor Intl-RFD Chicago Greater Rockford

13h 33m1 stop Las Vegas Harry Reid Intl

$265Multiple Airlines

Tue, Jan 5 - Tue, May 4

6:21 am - 3:11 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 50m1 stop Denver Intl

5:54 pm - 6:35 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

10h 41m1 stop Seattle/Tacoma Intl

$273Multiple Airlines

Thu, Nov 26 - Thu, Dec 3

5:16 pm - 8:23 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 07mnonstop

1:21 pm - 5:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 34mnonstop

$279American Airlines

Fri, Jan 29 - Wed, Feb 3

2:13 pm - 10:37 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 24m1 stop San Diego

7:00 am - 5:59 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

9h 59m1 stop Seattle/Tacoma Intl

$283Alaska Airlines

Wed, Nov 11 - Sat, Nov 21

9:30 pm - 12:24 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 54mnonstop

7:01 pm - 11:34 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 33mnonstop

$283American Airlines

Mon, Dec 7 - Fri, Dec 11

7:15 am - 10:18 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 03mnonstop

8:00 am - 12:39 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 39mnonstop

$283United Airlines

Mon, Nov 9 - Wed, Nov 11

11:08 am - 2:14 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 06mnonstop

7:50 am - 12:29 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 39mnonstop

$283United Airlines

Recent last minute flight deals from Illinois to Phoenix

Tue, Oct 20 - Sat, Nov 21

7:40 am - 1:42 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

8h 02m1 stop Houston George Bush Intcntl

6:30 am - 11:00 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 30mnonstop

$276Frontier

Tue, Oct 20 - Sat, Nov 21

6:30 am - 8:10 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

27h 40m1 stop Denver Intl

5:29 pm - 6:14 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

11h 45m1 stop Los Angeles

$297Frontier

Tue, Oct 20 - Sat, Nov 21

10:45 pm - 12:44 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 59mnonstop

7:10 am - 11:39 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 29mnonstop

$382American Airlines

Tue, Oct 20 - Sat, Oct 24

7:40 am - 1:42 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

8h 02m1 stop Houston George Bush Intcntl

6:02 am - 6:20 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

10h 18m1 stop Seattle/Tacoma Intl

$392Multiple Airlines

Fri, Oct 16 - Wed, Oct 21

12:26 pm - 6:53 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

8h 27m1 stop Dallas/Fort Worth

8:02 am - 6:20 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

8h 18m1 stop Seattle/Tacoma Intl

$421Multiple Airlines

Sat, Oct 17 - Mon, Oct 19

4:38 pm - 8:51 pmMLI Moline Quad-City-PHX Phoenix Sky Harbor Intl

6h 13m1 stop Dallas/Fort Worth

12:36 am - 10:51 amPHX Phoenix Sky Harbor Intl-MLI Moline Quad-City

8h 15m1 stop Chicago O'Hare Intl

$451American Airlines

Tue, Oct 20 - Sat, Oct 24

6:05 pm - 7:50 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 45mnonstop

9:45 am - 3:00 pmPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 15mnonstop

$481Southwest

Sat, Oct 17 - Tue, Oct 20

5:10 am - 6:55 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 45mnonstop

6:35 pm - 11:55 pmPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 20mnonstop

$481Southwest

Sat, Oct 17 - Sat, Oct 24

8:30 pm - 10:24 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 54mnonstop

4:49 pm - 10:29 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$481United Airlines

Sat, Oct 17 - Wed, Oct 21

11:00 am - 12:56 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 56mnonstop

11:52 pm - 5:20 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 28mnonstop

$481United Airlines

Recent direct flight deals from Illinois to Phoenix

Mon, Feb 8 - Sat, Feb 13

8:14 pm - 11:23 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 09mnonstop

2:32 pm - 7:09 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$256Frontier

Sat, Feb 27 - Sat, Mar 6

8:14 pm - 11:23 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 09mnonstop

2:32 pm - 7:09 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$256Frontier

Thu, Dec 3 - Sun, Dec 6

11:35 am - 2:40 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 05mnonstop

6:00 am - 10:32 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 32mnonstop

$257Frontier

Thu, Nov 26 - Thu, Dec 3

5:16 pm - 8:23 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 07mnonstop

1:21 pm - 5:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 34mnonstop

$279American Airlines

Wed, Dec 2 - Mon, Dec 7

6:25 pm - 9:27 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 02mnonstop

7:14 pm - 11:38 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 24mnonstop

$283American Airlines

Fri, Nov 6 - Sun, Nov 8

9:45 pm - 12:40 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 55mnonstop

1:35 am - 5:45 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 10mnonstop

$283Southwest

Fri, Feb 19 - Mon, Feb 22

9:45 pm - 12:35 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 50mnonstop

1:30 am - 5:45 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 15mnonstop

$283Southwest

Mon, Dec 7 - Fri, Dec 11

7:15 am - 10:18 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 03mnonstop

8:00 am - 12:39 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 39mnonstop

$283United Airlines

Mon, Nov 9 - Wed, Nov 11

11:08 am - 2:14 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 06mnonstop

7:50 am - 12:29 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 39mnonstop

$283United Airlines

Fri, Dec 4 - Mon, Dec 7

3:13 pm - 6:08 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 55mnonstop

7:06 am - 11:39 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 33mnonstop

$283American Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$122

Best time to beat the crowds but there is an average 3% increase in price.

Most popular time to fly with an average 3% increase in price.

Flight from Chicago O'Hare Airport to Phoenix Sky Harbor Airport

JanieFlew with SWISS-Feb 2025

I think you should prebook food or bring your own food.

Verified travelerFlew with United Airlines-Apr 2024

Use the find my gate feature on the flights phone app if available as the airport is a bit confusing

How does KAYAK find such low prices on flights from Illinois to Phoenix?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Phoenix.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Phoenix?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Phoenix?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phoenix with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Phoenix?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phoenix from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.