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.

$118 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, Dec 4 - Mon, Dec 7

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

4h 05mnonstop

3:57 pm - 12:54 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

7h 57m1 stop Denver Intl

$253Frontier

Fri, Oct 16 - Thu, Oct 22

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

27h 40m1 stop Denver Intl

3:29 pm - 12:24 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

6h 55m1 stop Denver Intl

$253Frontier

Wed, Mar 3 - Tue, Mar 9

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

4h 09mnonstop

7:01 am - 1:54 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

5h 53m1 stop San Diego

$255Multiple Airlines

Mon, Oct 26 - Wed, Oct 28

3:30 pm - 11:18 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

9h 48m1 stop Las Vegas Harry Reid Intl

7:38 am - 6:53 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

9h 15m1 stop San Diego

$257Multiple Airlines

Sat, Oct 31 - Mon, Nov 23

7:00 am - 3:10 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

10h 10m1 stop Seattle/Tacoma Intl

6:00 am - 1:18 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

6h 18m1 stop San Diego

$263Alaska Airlines

Sat, Oct 24 - Sat, Oct 31

2:21 pm - 8:41 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

8h 20m1 stop San Diego

10:12 am - 6:53 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

6h 41m1 stop San Diego

$263Alaska Airlines

Wed, Nov 4 - Mon, Nov 9

5:00 am - 8:15 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 15mnonstop

7:08 pm - 11:38 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 30mnonstop

$283American Airlines

Thu, Jan 7 - Mon, Jan 11

5:44 pm - 8:49 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 05mnonstop

7:00 am - 11:30 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 30mnonstop

$283American Airlines

Tue, Dec 22 - Tue, Dec 29

5:59 am - 9:02 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 03mnonstop

6:28 pm - 10:59 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 31mnonstop

$283United Airlines

Thu, Dec 31 - Thu, Feb 11

5:59 am - 9:02 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 03mnonstop

1:55 pm - 6:35 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$283United Airlines

Recent last minute flight deals from Illinois to Phoenix

Fri, Oct 2 - Tue, Nov 3

1:01 pm - 9:50 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

10h 49m1 stop Dallas/Fort Worth

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

7h 35m1 stop Denver Intl

$312Frontier

Wed, Sep 30 - Wed, Oct 14

6:30 am - 12:35 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

8h 05m1 stop Denver Intl

3:29 pm - 12:24 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

6h 55m1 stop Denver Intl

$320Frontier

Wed, Sep 30 - Sun, Oct 11

6:30 am - 12:35 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

8h 05m1 stop Denver Intl

3:16 pm - 10:38 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

17h 22m1 stop Minneapolis St Paul

$414Multiple Airlines

Fri, Oct 2 - Tue, Nov 3

6:08 pm - 8:04 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 56mnonstop

8:51 am - 1:40 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 49mnonstop

$431American Airlines

Fri, Oct 2 - Mon, Nov 2

7:15 pm - 8:55 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 40mnonstop

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

3h 10mnonstop

$431Southwest

Wed, Sep 30 - Wed, Oct 7

6:32 am - 12:56 pmMLI Moline Quad-City-PHX Phoenix Sky Harbor Intl

8h 24m1 stop Chicago O'Hare Intl

11:52 pm - 10:12 amPHX Phoenix Sky Harbor Intl-MLI Moline Quad-City

8h 20m1 stop Chicago O'Hare Intl

$434United Airlines

Fri, Oct 2 - Tue, Nov 3

7:15 pm - 8:55 pmMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 40mnonstop

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

5h 15m1 stop Louisville Intl

$437Southwest

Wed, Sep 30 - Wed, Oct 7

2:28 pm - 9:59 pmMLI Moline Quad-City-PHX Phoenix Sky Harbor Intl

9h 31m2 stops Chicago O'Hare Intl Denver Intl

11:52 pm - 10:12 amPHX Phoenix Sky Harbor Intl-MLI Moline Quad-City

8h 20m1 stop Chicago O'Hare Intl

$439United Airlines

Fri, Oct 2 - Tue, Nov 3

8:15 am - 1:00 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

6h 45m1 stop Dallas/Fort Worth

7:08 pm - 11:38 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 30mnonstop

$441American Airlines

Wed, Sep 30 - Tue, Oct 6

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

7h 42m1 stop Las Vegas Harry Reid Intl

7:38 am - 6:53 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

9h 15m1 stop San Diego

$446Multiple Airlines

Recent direct flight deals from Illinois to Phoenix

Fri, Nov 20 - Wed, Nov 25

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

4h 05mnonstop

6:00 am - 10:30 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 30mnonstop

$253Frontier

Fri, Nov 20 - Wed, Nov 25

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

4h 05mnonstop

6:00 am - 10:30 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 30mnonstop

$253Frontier

Fri, Jan 15 - Mon, Jan 18

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

Wed, Nov 4 - Mon, Nov 9

5:00 am - 8:15 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 15mnonstop

7:08 pm - 11:38 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 30mnonstop

$283American Airlines

Thu, Jan 7 - Mon, Jan 11

5:44 pm - 8:49 pmORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 05mnonstop

7:00 am - 11:30 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 30mnonstop

$283American Airlines

Tue, Dec 22 - Tue, Dec 29

5:59 am - 9:02 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 03mnonstop

6:28 pm - 10:59 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 31mnonstop

$283United Airlines

Thu, Dec 31 - Thu, Feb 11

5:59 am - 9:02 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

4h 03mnonstop

1:55 pm - 6:35 pmPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 40mnonstop

$283United Airlines

Sat, Oct 24 - Tue, Oct 27

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

3h 45mnonstop

12:35 am - 5:45 amPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 10mnonstop

$283Southwest

Sat, Dec 5 - Wed, Dec 9

5:05 am - 7:55 amMDW Chicago Midway-PHX Phoenix Sky Harbor Intl

3h 50mnonstop

6:05 pm - 10:20 pmPHX Phoenix Sky Harbor Intl-MDW Chicago Midway

3h 15mnonstop

$283Southwest

Wed, Feb 10 - Sun, Feb 14

5:00 am - 7:56 amORD Chicago O'Hare Intl-PHX Phoenix Sky Harbor Intl

3h 56mnonstop

12:31 am - 4:59 amPHX Phoenix Sky Harbor Intl-ORD Chicago O'Hare Intl

3h 28mnonstop

$283American Airlines

Useful Info

Low season	August
High season	March
Cheapest flight	$118

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

Most popular time to fly with an average 6% increase in price.

Flight from Chicago Midway 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.