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.

$119 CHEAP FLIGHTS from Illinois to Phoenix (PHX)

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

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

Sun, Jan 24 - Wed, Jan 27

12:47 pm - 8:16 amMLI Moline Quad-City-PHX Phoenix Sky Harbor Intl

20h 29m1 stop Las Vegas Harry Reid Intl

9:03 pm - 11:57 amPHX Phoenix Sky Harbor Intl-MLI Moline Quad-City

13h 54m1 stop Las Vegas Harry Reid Intl

$224Multiple Airlines

Sun, Dec 6 - Thu, Dec 10

11:38 am - 2:37 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 59mnonstop

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

3h 32mnonstop

$254Frontier

Wed, Dec 30 - Tue, Jan 5

9:42 pm - 12:47 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 05mnonstop

3:45 pm - 12:26 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

7h 41m1 stop Denver Intl

$254Frontier

Mon, Nov 9 - Thu, Nov 12

12:20 pm - 11:55 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

12h 35m1 stop Dallas/Fort Worth

4:30 pm - 2:26 pmPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

20h 56m1 stop Knoxville McGhee Tyson

$260Multiple Airlines

Thu, Jan 7 - Tue, Jan 12

7:40 am - 4:24 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 44m1 stop San Diego

12:05 pm - 10:08 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

9h 03m1 stop San Diego

$263Alaska Airlines

Thu, Nov 19 - Tue, Dec 8

7:20 am - 4:10 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 50m1 stop San Diego

12:32 pm - 11:59 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

10h 27m1 stop Seattle/Tacoma Intl

$263Alaska Airlines

Wed, Oct 28 - Mon, Nov 2

5:45 am - 7:30 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 45mnonstop

5:45 am - 9:55 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 10mnonstop

$283Southwest

Tue, Jan 19 - Thu, Jan 21

7:55 am - 10:55 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

4h 00mnonstop

6:00 pm - 10:10 pmPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 10mnonstop

$283Southwest

Sat, Nov 14 - Sat, Nov 21

7:00 pm - 9:57 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 57mnonstop

4:09 pm - 8:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 46mnonstop

$283American Airlines

Tue, Dec 1 - Fri, Dec 4

8:40 pm - 11:50 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 10mnonstop

12:23 am - 5:00 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$283American Airlines

Recent last minute flight deals from Illinois to Phoenix

Tue, Oct 6 - Mon, Nov 9

1:21 pm - 7:03 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

7h 42m1 stop Las Vegas Harry Reid Intl

9:59 pm - 12:21 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

25h 22m1 stop Denver Intl

$286Frontier

Tue, Oct 6 - Tue, Dec 8

1:21 pm - 7:03 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

7h 42m1 stop Las Vegas Harry Reid Intl

7:52 pm - 12:54 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

28h 02m1 stop Denver Intl

$287Frontier

Sat, Oct 3 - Sat, Nov 7

6:00 am - 1:06 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 06m1 stop Dallas/Fort Worth

7:15 am - 4:40 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

8h 25m2 stops Denver Intl Minneapolis St Paul

$321Multiple Airlines

Tue, Oct 6 - Sat, Nov 7

6:00 am - 1:06 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 06m1 stop Dallas/Fort Worth

7:15 am - 4:40 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

8h 25m2 stops Denver Intl Minneapolis St Paul

$321Multiple Airlines

Tue, Oct 6 - Mon, Nov 9

8:45 pm - 10:35 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 50mnonstop

5:45 am - 9:55 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 10mnonstop

$382Southwest

Tue, Oct 6 - Sun, Nov 8

8:45 pm - 10:35 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 50mnonstop

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

3h 10mnonstop

$382Southwest

Tue, Oct 6 - Sat, Nov 7

6:48 am - 8:55 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 07mnonstop

1:12 pm - 5:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 43mnonstop

$382American Airlines

Tue, Oct 6 - Mon, Dec 7

6:17 pm - 8:21 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 04mnonstop

12:23 am - 5:00 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$382American Airlines

Tue, Oct 6 - Tue, Dec 8

5:00 am - 9:07 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

6h 07m1 stop Denver Intl

5:15 pm - 9:53 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 38mnonstop

$392United Airlines

Tue, Oct 6 - Tue, Dec 8

5:00 am - 9:07 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

6h 07m1 stop Denver Intl

5:15 pm - 9:53 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 38mnonstop

$392United Airlines

Recent direct flight deals from Illinois to Phoenix

Fri, Jan 22 - Sun, Jan 24

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

$254Frontier

Sun, Dec 6 - Mon, Dec 14

11:38 am - 2:37 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 59mnonstop

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

3h 32mnonstop

$254Frontier

Sun, Dec 6 - Thu, Dec 10

11:38 am - 2:37 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 59mnonstop

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

3h 32mnonstop

$254Frontier

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

$283American Airlines

Sat, Dec 5 - Fri, Dec 11

5:00 pm - 8:02 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 02mnonstop

12:23 am - 5:00 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$283American Airlines

Sat, Oct 24 - Tue, Oct 27

3:40 pm - 5:35 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 55mnonstop

11:20 am - 5:00 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$283United Airlines

Tue, Nov 3 - Tue, Nov 17

8:37 pm - 11:42 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 05mnonstop

1:53 pm - 6:29 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 36mnonstop

$283United Airlines

Wed, Oct 28 - Mon, Nov 2

5:45 am - 7:30 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 45mnonstop

5:45 am - 9:55 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 10mnonstop

$283Southwest

Tue, Jan 19 - Thu, Jan 21

7:55 am - 10:55 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

4h 00mnonstop

6:00 pm - 10:10 pmPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 10mnonstop

$283Southwest

Tue, Oct 20 - Tue, Oct 27

6:17 pm - 8:21 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 04mnonstop

3:17 pm - 9:00 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 43mnonstop

$283American Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$119

Best time to beat the crowds but there is an average 4% increase in price.

Most popular time to fly with an average 5% 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.