PHX

$55 Find Cheap Flights from Illinois to Phoenix

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Phoenix departing on 2/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$107
Overall average: $267
Frontier
Sat 2/7Wed 2/11
ORD - PHX • Non-stop
Cheapest non-stop
$106
Typical prices: $174-$370
Frontier
Fri 2/13Sat 2/21
ORD - PHX • Non-stop
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Illinois to Phoenix

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Phoenix 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.

Recent round-trip flight deals from Illinois to Phoenix

Sat, Feb 7 - Wed, Feb 11
Frontier Logo
8:00 am - 11:11 am
ORD
-
PHX
4h 11mnonstop
Frontier Logo
12:31 pm - 5:03 pm
PHX
-
ORD
3h 32mnonstop
$107Frontier
Sat, Feb 28 - Wed, Mar 4
Frontier Logo
8:05 am - 11:44 pm
ORD
-
PHX
16h 39m
1 stop
Frontier Logo
12:31 pm - 5:03 pm
PHX
-
ORD
3h 32mnonstop
$108Frontier
Sun, Feb 22 - Wed, Feb 25
Multiple Airlines Logo
12:16 pm - 9:10 am
MLI
-
PHX
21h 54m
1 stop
Multiple Airlines Logo
8:04 pm - 11:26 am
PHX
-
MLI
14h 22m
1 stop
$241Multiple Airlines
Wed, Feb 25 - Tue, Mar 3
American Airlines Logo
5:22 pm - 11:51 pm
PIA
-
PHX
7h 29m
1 stop
American Airlines Logo
12:51 am - 9:11 am
PHX
-
PIA
7h 20m
1 stop
$251American Airlines
Sat, Feb 28 - Tue, Mar 3
Delta Logo
5:01 pm - 11:42 pm
MLI
-
PHX
7h 41m
1 stop
Delta Logo
6:00 am - 4:16 pm
PHX
-
MLI
9h 16m
1 stop
$259Delta
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
5:22 pm - 11:03 pm
MLI
-
PHX
6h 41m
1 stop
United Airlines Logo
11:33 am - 8:54 pm
PHX
-
MLI
8h 21m
2 stops
$264United Airlines
Wed, Feb 18 - Fri, Feb 27
American Airlines Logo
3:33 pm - 9:40 pm
MLI
-
PHX
7h 07m
1 stop
American Airlines Logo
6:05 am - 1:00 pm
PHX
-
MLI
5h 55m
1 stop
$274American Airlines
Sun, Feb 15 - Wed, Feb 18
Multiple Airlines Logo
12:16 pm - 9:10 am
MLI
-
PHX
21h 54m
1 stop
Multiple Airlines Logo
8:04 pm - 11:26 am
PHX
-
MLI
14h 22m
1 stop
$278Multiple Airlines
Sat, Feb 7 - Tue, Feb 10
Delta Logo
5:20 pm - 11:46 pm
MLI
-
PHX
7h 26m
1 stop
Delta Logo
1:55 pm - 10:33 pm
PHX
-
MLI
7h 38m
1 stop
$289Delta
Sun, Feb 8 - Sun, Feb 15
United Airlines Logo
1:24 pm - 7:22 pm
PIA
-
PHX
6h 58m
1 stop
United Airlines Logo
7:00 am - 2:10 pm
PHX
-
PIA
6h 10m
1 stop
$289United Airlines
Useful Info

Good to know

Low seasonAugust
Cheapest flight$55
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 9% increase in price.
Flight from Chicago O'Hare Airport to Phoenix Sky Harbor Airport

Flights from Illinois to Phoenix: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Illinois to Phoenix 
Learn how KAYAK collects reviews and tips from users.
JanieFlew with SWISS
ORD
-
PHX
Feb 2025
I think you should prebook food or bring your own food.
Verified travelerFlew with United Airlines
ORD
-
PHX
Apr 2024
Use the find my gate feature on the flights phone app if available as the airport is a bit confusing

FAQs for booking Illinois to Phoenix flights

  • 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.

Traveling to a place near Phoenix?

Book flights to Phoenix if you plan to visit one of these locations
Paradise Valley
Globe
Cave Creek
Guadalupe
Morristown

Everything you need to know for your flight to Phoenix

Information on your arrival and departure airports

Phoenix (PHX)