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.

$115 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

Wed, Dec 23 - Mon, Dec 28

8:00 pm - 11:09 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 09mnonstop

2:18 pm - 6:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$258Frontier

Sun, Dec 20 - Sun, Jan 10

7:45 am - 2:54 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

8h 09m1 stop Denver Intl

9:01 pm - 6:00 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

7h 59m1 stop Las Vegas Harry Reid Intl

$258Frontier

Wed, Dec 16 - Sat, Dec 19

5:20 am - 8:10 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 50mnonstop

8:30 pm - 12:50 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 20mnonstop

$260Southwest

Fri, Nov 27 - Thu, Dec 3

7:20 am - 10:15 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

$260Southwest

Sat, Dec 12 - Tue, Dec 22

12:39 pm - 5:39 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

6h 00m1 stop Minneapolis St Paul

11:30 pm - 8:49 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

8h 19m1 stop Detroit Metropolitan Wayne County

$260Delta

Mon, Dec 14 - Mon, Dec 21

6:00 am - 12:06 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

7h 06m1 stop Atlanta Hartsfield-Jackson

12:58 am - 11:01 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

9h 03m1 stop Minneapolis St Paul

$260Delta

Sun, Nov 22 - Mon, Nov 23

6:05 pm - 9:12 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 07mnonstop

12:21 am - 5:00 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 39mnonstop

$260American Airlines

Thu, Dec 10 - Sat, Dec 12

5:00 am - 7:58 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 58mnonstop

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

3h 37mnonstop

$260American Airlines

Fri, Dec 11 - Fri, Dec 18

4:10 pm - 7:15 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 05mnonstop

1:50 pm - 6:30 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$260United Airlines

Sun, Dec 6 - Wed, Dec 9

8:30 pm - 11:34 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 04mnonstop

10:15 am - 2:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$260United Airlines

Recent last minute flight deals from Illinois to Phoenix

Tue, Nov 3 - Sun, Nov 22

6:30 am - 9:04 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

27h 34m1 stop Denver Intl

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

3h 30mnonstop

$265Frontier

Tue, Nov 3 - Sun, Nov 22

6:30 am - 9:04 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

27h 34m1 stop Denver Intl

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

3h 30mnonstop

$270Frontier

Tue, Nov 3 - Mon, Nov 16

5:20 am - 8:10 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 50mnonstop

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

3h 10mnonstop

$359Southwest

Tue, Nov 3 - Tue, Nov 17

5:00 pm - 8:07 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 07mnonstop

4:13 pm - 9:00 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 47mnonstop

$359American Airlines

Tue, Nov 3 - Tue, Nov 17

8:50 pm - 11:35 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 45mnonstop

1:35 pm - 7:50 pmPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

5h 15m1 stop Louisville Intl

$365Southwest

Sat, Oct 31 - Tue, Jan 5

7:20 am - 3:00 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 40m1 stop San Diego

11:50 am - 12:26 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

11h 36m1 stop Denver Intl

$366Multiple Airlines

Tue, Nov 3 - Tue, Nov 17

6:59 am - 12:24 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

6h 25m1 stop Dallas/Fort Worth

5:18 pm - 9:58 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$369American Airlines

Sat, Oct 31 - Wed, Nov 4

7:20 am - 3:00 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 40m1 stop San Diego

3:46 pm - 12:21 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

7h 35m1 stop Denver Intl

$381Multiple Airlines

Sat, Oct 31 - Tue, Jan 5

12:55 pm - 2:58 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 03mnonstop

4:38 pm - 11:58 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

6h 20m1 stop Denver Intl

$392United Airlines

Sun, Nov 1 - Tue, Dec 1

8:37 pm - 11:40 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 03mnonstop

6:20 pm - 10:58 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 38mnonstop

$419United Airlines

Recent direct flight deals from Illinois to Phoenix

Wed, Dec 23 - Mon, Dec 28

8:00 pm - 11:09 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 09mnonstop

2:18 pm - 6:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$258Frontier

Fri, Dec 25 - Wed, Dec 30

8:00 pm - 11:09 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 09mnonstop

2:18 pm - 6:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$259Frontier

Wed, Dec 23 - Mon, Jan 4

8:00 pm - 11:09 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 09mnonstop

2:18 pm - 6:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 37mnonstop

$259Frontier

Thu, Dec 10 - Sat, Dec 12

5:00 am - 7:58 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 58mnonstop

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

3h 37mnonstop

$260American Airlines

Tue, Dec 1 - Sun, Dec 6

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

$260American Airlines

Fri, Dec 11 - Fri, Dec 18

4:10 pm - 7:15 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 05mnonstop

1:50 pm - 6:30 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$260United Airlines

Sun, Dec 6 - Wed, Dec 9

8:30 pm - 11:34 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 04mnonstop

10:15 am - 2:55 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$260United Airlines

Thu, Dec 10 - Sun, Dec 13

8:50 pm - 11:40 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

$260Southwest

Fri, Dec 11 - Sat, Dec 19

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

3h 55mnonstop

8:30 pm - 12:50 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 20mnonstop

$260Southwest

Sun, Nov 22 - Mon, Nov 23

6:05 pm - 9:12 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 07mnonstop

12:21 am - 5:00 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 39mnonstop

$260American Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$115

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 Peoria 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.