What airlines fly to Phoenix Sky Harbor Intl Airport?

American Airlines, Frontier and United Airlines are the top three most popular airlines that fly to Phoenix Sky Harbor Intl Airport from Illinois according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Phoenix Sky Harbor Intl Airport. Keep in mind that there are 8 different airlines that fly to Phoenix Sky Harbor Intl Airport on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Phoenix Sky Harbor Intl Airport?

Average flight duration from Illinois to Phoenix Sky Harbor Intl Airport depends on which airport you fly into and out of. Flying from Chicago to Phoenix Sky Harbor Intl Airport is 3h 43m on average, while flying from Peoria to Phoenix Sky Harbor Intl Airport is 6h 10m on average. Phoenix Sky Harbor Intl Airport is the most popular airport in Phoenix Sky Harbor Intl Airport.

What is the cheapest airline that flies from Illinois to Phoenix Sky Harbor Intl?

Frontier, Southwest, and Spirit Airlines are the most popular carriers operating from Illinois to Phoenix Sky Harbor Intl

How many flights depart from Illinois to Phoenix Sky Harbor Intl Airport on average per week?

As of August 2025, 400 flights take off from Illinois and land in Phoenix Sky Harbor Intl Airport each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.

How many flights depart from Illinois to Phoenix Sky Harbor Intl Airport on average per day?

As of August 2025, there are 57 flights per day flying from Illinois to Phoenix Sky Harbor Intl Airport. The most common time of day flights depart is 6:00PM, with 39% of flights taking off in the evening.

How many operators does momondo search for flights from Illinois to Phoenix Sky Harbor Intl Airport?

As of August 2025, there are 8 operators available to choose from for flights from Illinois to Phoenix Sky Harbor Intl Airport.

How old do you have to be to fly from Illinois to Phoenix Sky Harbor Intl Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Phoenix Sky Harbor Intl Airport.

What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?

The required travel and health documents for your Phoenix Sky Harbor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Phoenix Sky Harbor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$72 Cheap Flights from Illinois to Phoenix Sky Harbor Intl Airport in 2025

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Find the cheapest flights from Illinois to Phoenix

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

3:30 pm - 6:34 pmORD-PHX

4h 04mnonstop

8:15 pm - 12:45 amPHX-ORD

3h 30mnonstop

$143Frontier

Find Deal

vie., nov. 14 - dom., nov. 16

10:56 pm - 12:47 amMDW-PHX

3h 51mnonstop

10:39 am - 4:05 pmPHX-MDW

3h 26mnonstop

$144Frontier

Find Deal

lun., oct. 20 - jue., oct. 23

2:07 pm - 4:11 pmORD-PHX

4h 04mnonstop

12:01 pm - 10:48 pmPHX-ORD

8h 47m1 stop

$167

Find Deal

vie., sep. 12 - lun., sep. 15

11:15 am - 11:50 amORD-PHX

26h 35m2 stops

5:06 pm - 10:40 pmPHX-ORD

3h 34mnonstop

$174

Find Deal

mar., sep. 9 - lun., sep. 15

3:50 pm - 5:39 pmORD-PHX

3h 49mnonstop

7:04 am - 12:43 pmPHX-ORD

3h 39mnonstop

$179United Airlines

Find Deal

mié., sep. 3 - vie., sep. 5

5:00 am - 6:50 amMDW-PHX

3h 50mnonstop

6:50 pm - 12:05 amPHX-MDW

3h 15mnonstop

$199Southwest

Find Deal

sáb., oct. 4 - sáb., oct. 11

12:30 pm - 2:10 pmMDW-PHX

3h 40mnonstop

5:40 am - 10:55 amPHX-MDW

3h 15mnonstop

$205Southwest

Find Deal

vie., sep. 19 - mar., sep. 23

7:30 pm - 11:38 pmSTL-PHX

6h 08m1 stop

12:40 am - 8:51 amPHX-STL

6h 11m1 stop

$237Delta

Find Deal

mié., oct. 22 - vie., oct. 24

7:30 pm - 11:38 pmSTL-PHX

6h 08m1 stop

12:40 am - 8:51 amPHX-STL

6h 11m1 stop

$244Delta

Find Deal

vie., oct. 17 - lun., oct. 20

5:20 pm - 10:00 pmPIA-PHX

6h 40m1 stop

6:00 am - 4:43 pmPHX-PIA

8h 43m2 stops

$256United Airlines

Find Deal

mar., sep. 30 - sáb., oct. 4

Delta flights from Illinois to Phoenix Sky Harbor Intl Airport

Our best Delta deals on Illinois to Phoenix Sky Harbor Intl Airport flight tickets

Delta

Oct 22

STL7:30 pmLambert-St Louis

6h 08m

1 stop

PHX11:38 pmPhoenix Sky Harbor Intl

Oct 24

PHX12:40 amPhoenix Sky Harbor Intl

6h 11m

1 stop

STL8:51 amLambert-St Louis

$237

Find similar

Delta

Oct 17

STL7:30 pmLambert-St Louis

6h 08m

1 stop

PHX11:38 pmPhoenix Sky Harbor Intl

Oct 20

PHX12:40 amPhoenix Sky Harbor Intl

6h 11m

1 stop

STL8:51 amLambert-St Louis

$244

Find similar

Delta

Aug 31

MDW6:00 amChicago Midway

8h 27m

1 stop

PHX12:27 pmPhoenix Sky Harbor Intl

Sep 19

PHX11:10 pmPhoenix Sky Harbor Intl

7h 30m

1 stop

MDW8:40 amChicago Midway

$257

Find similar

American Airlines flights from Illinois to Phoenix Sky Harbor Intl Airport

Our best American Airlines deals on Illinois to Phoenix Sky Harbor Intl Airport flight tickets

American Airlines

Oct 14

STL7:00 amLambert-St Louis

3h 34m

PHX8:34 amPhoenix Sky Harbor Intl

Oct 20

PHX12:18 amPhoenix Sky Harbor Intl

5h 51m

1 stop

STL8:09 amLambert-St Louis

$239

Find similar

American Airlines

Oct 30

STL6:39 amLambert-St Louis

6h 40m

1 stop

PHX11:19 amPhoenix Sky Harbor Intl

Nov 4

PHX7:54 pmPhoenix Sky Harbor Intl

2h 56m

STL11:50 pmLambert-St Louis

$246

Find similar

American Airlines

Oct 17

STL6:21 pmLambert-St Louis

3h 21m

PHX7:42 pmPhoenix Sky Harbor Intl

Oct 21

PHX3:25 pmPhoenix Sky Harbor Intl

3h 02m

STL8:27 pmLambert-St Louis

$249

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

vie. 11/14

3:30 pm-6:34 pm

Nonstop4h 04m

Phoenix Sky Harbor Intl

dom. 11/16

8:15 pm-12:45 am

Nonstop3h 30m

$143

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

lun. 10/20

10:56 pm-12:47 am

Nonstop3h 51m

Phoenix Sky Harbor Intl

jue. 10/23

10:39 am-4:05 pm

Nonstop3h 26m

$144

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

vie. 9/12

2:07 pm-4:11 pm

Nonstop4h 04m

Phoenix Sky Harbor Intl

lun. 9/15

12:01 pm-10:48 pm

1 stop8h 47m

$167

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

mar. 9/9

11:15 am-11:50 am

2 stops26h 35m

Phoenix Sky Harbor Intl

lun. 9/15

5:06 pm-10:40 pm

Nonstop3h 34m

$174

ChicagoPhoenix

ORD - PHX

ORDPHX

Chicago O'Hare Intl

mié. 9/3

3:50 pm-5:39 pm

Nonstop3h 49m

Phoenix Sky Harbor Intl

vie. 9/5

7:04 am-12:43 pm

Nonstop3h 39m

$179

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

sáb. 10/4

5:00 am-6:50 am

Nonstop3h 50m

Phoenix Sky Harbor Intl

sáb. 10/11

6:50 pm-12:05 am

Nonstop3h 15m

$199

ChicagoPhoenix

MDW - PHX

MDWPHX

Chicago Midway

vie. 9/19

12:30 pm-2:10 pm

Nonstop3h 40m

Phoenix Sky Harbor Intl

mar. 9/23

5:40 am-10:55 am

Nonstop3h 15m

$205

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

mié. 10/22

7:30 pm-11:38 pm

1 stop6h 08m

Phoenix Sky Harbor Intl

vie. 10/24

12:40 am-8:51 am

1 stop6h 11m

$237

St. LouisPhoenix

STL - PHX

STLPHX

Lambert-St Louis

vie. 10/17

7:30 pm-11:38 pm

1 stop6h 08m

Phoenix Sky Harbor Intl

lun. 10/20

12:40 am-8:51 am

1 stop6h 11m

$244

PeoriaPhoenix

PIA - PHX

PIAPHX

Greater Peoria

mar. 9/30

5:20 pm-10:00 pm

1 stop6h 40m

Phoenix Sky Harbor Intl

sáb. 10/4

6:00 am-4:43 pm

2 stops8h 43m

$256

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Illinois to Phoenix Sky Harbor Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Phoenix Sky Harbor Intl Airport?

In general, September is the cheapest month to fly from Illinois to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $202. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of September, then departing from Illinois during the month August is also very affordable. Most momondo users find prices during this month for around $236.

What is the cheapest day to depart on your flight to Phoenix Sky Harbor Intl Airport?

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Illinois is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $304. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $390. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

What is the cheapest time of day to depart on your flight to Phoenix Sky Harbor Intl Airport?

In the evening is the cheapest time of day to fly from Illinois to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $278. Flying to Phoenix Sky Harbor Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $353. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Illinois to Phoenix Sky Harbor Intl flight route?

Fly from Chicago Midway to Phoenix Sky Harbor Intl for the best Illinois - Phoenix Sky Harbor Intl flight prices

How far in advance should I book a flight to Phoenix Sky Harbor Intl Airport?

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $291 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Illinois for as low as $248 on momondo.

What cabin class options are available on Illinois to Phoenix Sky Harbor Intl flights?

There are 4 cabin classes available to choose from on Illinois to Phoenix Sky Harbor Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Phoenix Sky Harbor Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Illinois to Phoenix Sky Harbor Intl Airport.

Cheap Illinois to Phoenix Sky Harbor Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Phoenix Sky Harbor Intl Airport

Best Price Found	$133
Fastest flight time	3h 15m
Direct flights	Every day

The best one-way flight to Phoenix Sky Harbor Intl Airport from Illinois in the past 72 hours is $133. The best round-trip flight deal from Illinois to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $208.

The fastest flight from Illinois to Phoenix Sky Harbor Intl Airport takes 3h 15m

Direct flights go from Illinois to Phoenix Sky Harbor Intl Airport every day.

Search flight deals

When did momondo last update prices for flights from Illinois to Phoenix Sky Harbor Intl Airport?
Prices for flights from Illinois to Phoenix Sky Harbor Intl Airport refresh daily.
How many operators does momondo search for flights from Illinois to Phoenix Sky Harbor Intl Airport?
As of August 2025, there are 8 operators available to choose from for flights from Illinois to Phoenix Sky Harbor Intl Airport.
How old do you have to be to fly from Illinois to Phoenix Sky Harbor Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Phoenix Sky Harbor Intl Airport.
What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?
The required travel and health documents for your Phoenix Sky Harbor Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Phoenix Sky Harbor Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Phoenix Sky Harbor Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Phoenix Sky Harbor Intl Airport is Boeing 737-800, representing 18.63% of all bookings. The subsequent popular models are Airbus A321-100/200 at 12.76%, Boeing 737-900 at 12.29%, and Boeing 737 MAX 9 at 11.04%.

Best airlines flying from Illinois to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from Illinois to Phoenix Sky Harbor Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $88	Free Cancellation	Rating 5.8 3,207 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $98	Free Cancellation	Rating 6.3 8,035 reviews	Search Spirit Airlines flights
Alaska Airlines	PriceFrom $154	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Allegiant Air	PriceFrom $166	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
American Airlines	PriceFrom $179	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $181	Free Cancellation	Rating 7.4 8,930 reviews	Search United Airlines flights
Southwest	PriceFrom $205	Free Cancellation	Rating 8.0 4,245 reviews	Search Southwest flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights

Scottsdale

Mesa

Tempe

Glendale

Chandler

Gilbert

Peoria

Surprise

Casa Grande

Buckeye

Wickenburg

Goodyear

Apache Junction

Payson

Paradise Valley

Avondale

Camp Verde

Fountain Hills

Cave Creek

Litchfield Park

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Phoenix?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Phoenix for you.

Can I find flights from Illinois to Phoenix with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Phoenix from Illinois with this policy.

How can momondo help me find flights from Illinois to Phoenix?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Phoenix from Illinois.

I’m not ready to book a flight from Illinois to Phoenix right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Phoenix, momondo offers a useful price alert feature which will track prices for flights to Phoenix from Illinois and alert you when they change.

An easier way to manage your Phoenix Sky Harbor Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Illinois to Phoenix from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Phoenix departing on 9/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Illinois to Phoenix

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Cheap last minute flights

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Delta flights from Illinois to Phoenix Sky Harbor Intl Airport

Our best Delta deals on Illinois to Phoenix Sky Harbor Intl Airport flight tickets

American Airlines flights from Illinois to Phoenix Sky Harbor Intl Airport

Our best American Airlines deals on Illinois to Phoenix Sky Harbor Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Illinois to Phoenix Sky Harbor Intl Airport that are best for you.

See travel insights to Phoenix from

How to get the cheapest flight ticket from Illinois to Phoenix Sky Harbor Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Phoenix Sky Harbor Intl Airport?

What is the cheapest day to depart on your flight to Phoenix Sky Harbor Intl Airport?

What is the cheapest time of day to depart on your flight to Phoenix Sky Harbor Intl Airport?

What is the cheapest Illinois to Phoenix Sky Harbor Intl flight route?

Fly from Chicago Midway to Phoenix Sky Harbor Intl for the best Illinois - Phoenix Sky Harbor Intl flight prices

How far in advance should I book a flight to Phoenix Sky Harbor Intl Airport?

What cabin class options are available on Illinois to Phoenix Sky Harbor Intl flights?

There are 4 cabin classes available to choose from on Illinois to Phoenix Sky Harbor Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Illinois to Phoenix Sky Harbor Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Illinois to Phoenix Sky Harbor Intl Airport.

What is the cheapest airline that flies from Illinois to Phoenix Sky Harbor Intl?

Frontier, Southwest, and Spirit Airlines are the most popular carriers operating from Illinois to Phoenix Sky Harbor Intl

What airlines fly to Phoenix Sky Harbor Intl Airport?

How many flights depart from Illinois to Phoenix Sky Harbor Intl Airport on average per day?

As of August 2025, there are 57 flights per day flying from Illinois to Phoenix Sky Harbor Intl Airport. The most common time of day flights depart is 6:00PM, with 39% of flights taking off in the evening.

How many flights depart from Illinois to Phoenix Sky Harbor Intl Airport on average per week?

As of August 2025, 400 flights take off from Illinois and land in Phoenix Sky Harbor Intl Airport each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.

How long does it take to fly to Phoenix Sky Harbor Intl Airport?

Cheap Illinois to Phoenix Sky Harbor Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Phoenix Sky Harbor Intl Airport

Best Price Found

Fastest flight time

Direct flights

When did momondo last update prices for flights from Illinois to Phoenix Sky Harbor Intl Airport?

How many operators does momondo search for flights from Illinois to Phoenix Sky Harbor Intl Airport?

How old do you have to be to fly from Illinois to Phoenix Sky Harbor Intl Airport?

What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?

What is the most popular plane model from Illinois to Phoenix Sky Harbor Intl Airport?

Best airlines flying from Illinois to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from Illinois to Phoenix Sky Harbor Intl Airport with momondo

Traveling to a place near Phoenix?

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Phoenix?

Can I find flights from Illinois to Phoenix with flexible booking policies on momondo?

How can momondo help me find flights from Illinois to Phoenix?

I’m not ready to book a flight from Illinois to Phoenix right now. Can momondo alert me if prices change?

An easier way to manage your Phoenix Sky Harbor Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Phoenix

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo