How far in advance should I book tickets for a flight with Frontier from Chicago to Phoenix Sky Harbor Intl Airport?

Generally, when trying to get a below average price for your ticket, try to book around 14 days before departure. For the cheapest possible price, our data suggests booking 66 days before departure.

Is Frontier the cheapest airline to fly with from Chicago to Phoenix Sky Harbor Intl Airport?

Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $217 return. The next cheapest options are Spirit Airlines and Alaska Airlines, with return flights costing on average $221 and $231 respectively.

Does Frontier fly direct to Phoenix Sky Harbor Intl Airport from Chicago?

No, Frontier does not fly the route directly.

What’s the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier?

On average, the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier is Friday, when prices are around $40. The most expensive day is generally Saturday, where the average price is around $72.

What’s the cheapest month to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier?

The cheapest month for Frontier flights to Phoenix Sky Harbor Intl Airport from Chicago is generally September, where plane tickets cost $99 on average. If possible, try to avoid the most expensive months of October and December, where tickets cost $171 and $178 respectively.

$64 Cheap Frontier Flights from Chicago to Phoenix Sky Harbor Intl Airport

CHI - PHX

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Flight Deals

Cheap Frontier Flight Deals from Chicago to Phoenix Sky Harbor Intl Airport

Here are some of the best deals found on KAYAK recently from Frontier for round-trip flights from Chicago to Phoenix Sky Harbor Intl Airport 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.

Round-trip

One-way

Last minute

Direct

Recent round-trip Frontier flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Thu, Feb 19 - Mon, Feb 23

3:26 pm - 6:33 pm

MDW

PHX

4h 07mnonstop

7:36 pm - 11:54 pm

PHX

MDW

3h 18mnonstop

$117Frontier

Thu, Jan 15 - Fri, Jan 16

12:57 pm - 4:01 pm

MDW

PHX

4h 04mnonstop

7:30 am - 11:47 am

PHX

MDW

3h 17mnonstop

$118Frontier

Sat, Feb 28 - Sat, Mar 7

6:25 am - 3:27 pm

MDW

PHX

10h 02m1 stop

6:24 pm - 10:41 pm

PHX

MDW

3h 17mnonstop

$119Frontier

Tue, Feb 17 - Mon, Feb 23

8:10 am - 11:24 am

ORD

PHX

4h 14mnonstop

7:25 am - 2:30 pm

PHX

ORD

6h 05m1 stop

$119Frontier

Sat, Jan 10 - Sat, Jan 17

9:15 am - 4:28 pm

ORD

PHX

8h 13m1 stop

12:20 pm - 4:52 pm

PHX

ORD

3h 32mnonstop

$120Frontier

Thu, Feb 12 - Sat, Feb 14

3:26 pm - 6:33 pm

MDW

PHX

4h 07mnonstop

11:59 pm - 2:26 pm

PHX

MDW

13h 27m1 stop

$121Frontier

Tue, Jan 13 - Wed, Jan 14

12:00 pm - 3:13 pm

ORD

PHX

4h 13mnonstop

5:10 pm - 9:24 pm

PHX

ORD

27h 14m1 stop

$121Frontier

Mon, Jan 12 - Fri, Jan 16

3:00 pm - 8:13 pm

MDW

PHX

6h 13m1 stop

7:30 am - 11:47 am

PHX

MDW

3h 17mnonstop

$122Frontier

Sat, Jan 24 - Sat, Jan 31

9:15 am - 11:53 pm

ORD

PHX

15h 38m2 stops

12:19 pm - 4:51 pm

PHX

ORD

3h 32mnonstop

$122Frontier

Sat, Feb 14 - Fri, Feb 27

9:15 am - 4:32 pm

MDW

PHX

8h 17m1 stop

7:33 pm - 11:51 pm

PHX

MDW

3h 18mnonstop

$123Frontier

Useful Info

Low season	June
High season	March
Cheapest flight	$64
Average price round-trip	$316
Good deal round-trip	$268

Most popular time to fly with an average 30% increase in price.

Flight from Chicago Midway Airport to Phoenix Sky Harbor Airport

(avg. price over the last 2 weeks)

or less

When to Book Flights with Frontier from Chicago to Phoenix Sky Harbor Intl Airport

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with Frontier from Chicago to Phoenix Sky Harbor Intl Airport?
Generally, when trying to get a below average price for your ticket, try to book around 14 days before departure. For the cheapest possible price, our data suggests booking 66 days before departure.
Is Frontier the cheapest airline to fly with from Chicago to Phoenix Sky Harbor Intl Airport?
Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $217 return. The next cheapest options are Spirit Airlines and Alaska Airlines, with return flights costing on average $221 and $231 respectively.
What is the cheapest Frontier flight from Chicago to Phoenix Sky Harbor Intl Airport?
In the last 3 days, the lowest price for a flight with Frontier from Chicago to Phoenix Sky Harbor Intl Airport was $80 for a return flight and $51 for a one-way flight.
Does Frontier fly direct to Phoenix Sky Harbor Intl Airport from Chicago?
No, Frontier does not fly the route directly.
What’s the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier?
On average, the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier is Friday, when prices are around $40. The most expensive day is generally Saturday, where the average price is around $72.
What’s the cheapest month to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier?
The cheapest month for Frontier flights to Phoenix Sky Harbor Intl Airport from Chicago is generally September, where plane tickets cost $99 on average. If possible, try to avoid the most expensive months of October and December, where tickets cost $171 and $178 respectively.

5.8

Fair3,082 verified ratings

4.4Entertainment

4.6Food

5.5Comfort

6.7Crew

6.0Boarding

Pros +

Crew was extremely pleasant. (in 1649 reviews)

Cons -

Several individuals used foul language 50% of of the 4hr flight. (in 4167 reviews)
The seats could be a bit bigger (in 2932 reviews)

Show reviews that mention

2.0 Poor

Verified traveler, Dec 2025

DEN

PHL

Not clean and was told I would get a great seat and it was not great at all

8.0 Very good

Yordanos, Dec 2025

SJU

PHL

Good- no snacks on a 4+ hour flight is painful but more painful was the lack of WiFi.

2.0 Poor

omnia, Dec 2025

MCO

CLE

Flight got delayed for 5 hours no good explanation was offered ;(

6.0 Okay

Verified traveler, Dec 2025

PHX

SEA

Horrible. I would never fly Frontier again. The booking process is tricky at best, but fraudulent in my opinion. Frontier customer service did nothing to rectify my purchase -- I ended up paying more than double what I could have gotten from other airlines and nearly triple what I thought I was buying from Frontier. Their booking practices are unfair to the consumer.

2.0 Poor

Daniel, Nov 2025

DEN

ATL

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

8.0 Very good

Jaime, Nov 2025

LAS

SLC

It was excellent everything

4.0 Mediocre

Verified traveler, Nov 2025

LAX

IAH

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

8.0 Very good

Lisa, Nov 2025

PHL

SRQ

Delayed on tarmac and boarding

8.0 Very good

Martha, Nov 2025

MDW

MCO

Better than expected. Staff were friendly and nice on both flights.

2.0 Poor

Justin, Nov 2025

DEN

AUS

Worst experience ever...never fly Frontier again.

Everything you need to know for your flight from Chicago to Phoenix Sky Harbor Intl Airport

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CHI - PHX

$64 Find Cheap Frontier Flights from Chicago to Phoenix Sky Harbor Intl Airport

Search hundreds of travel sites at once for deals on Frontier flights from Chicago to Phoenix Sky Harbor Intl Airport

Cheap Frontier Flight Deals from Chicago to Phoenix Sky Harbor Intl Airport

Recent round-trip Frontier flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Recent one-way Frontier flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Recent last minute Frontier flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Recent direct Frontier flight deals from Chicago to Phoenix Sky Harbor Intl Airport

Good to know

When to Book Flights with Frontier from Chicago to Phoenix Sky Harbor Intl Airport

FAQs for flying to Phoenix Sky Harbor Intl Airport with Frontier

How far in advance should I book tickets for a flight with Frontier from Chicago to Phoenix Sky Harbor Intl Airport?

Generally, when trying to get a below average price for your ticket, try to book around 14 days before departure. For the cheapest possible price, our data suggests booking 66 days before departure.

Is Frontier the cheapest airline to fly with from Chicago to Phoenix Sky Harbor Intl Airport?

Yes, based on our data, Frontier is the cheapest airline to fly the route with an average price of $217 return. The next cheapest options are Spirit Airlines and Alaska Airlines, with return flights costing on average $221 and $231 respectively.

What is the cheapest Frontier flight from Chicago to Phoenix Sky Harbor Intl Airport?

In the last 3 days, the lowest price for a flight with Frontier from Chicago to Phoenix Sky Harbor Intl Airport was $80 for a return flight and $51 for a one-way flight.

Does Frontier fly direct to Phoenix Sky Harbor Intl Airport from Chicago?

No, Frontier does not fly the route directly.

What’s the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier?

On average, the cheapest day of the week to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier is Friday, when prices are around $40. The most expensive day is generally Saturday, where the average price is around $72.

What’s the cheapest month to fly from Chicago to Phoenix Sky Harbor Intl Airport with Frontier?

The cheapest month for Frontier flights to Phoenix Sky Harbor Intl Airport from Chicago is generally September, where plane tickets cost $99 on average. If possible, try to avoid the most expensive months of October and December, where tickets cost $171 and $178 respectively.

Frontier Customer Reviews

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Everything you need to know for your flight from Chicago to Phoenix Sky Harbor Intl Airport

Cabin class types available on flights to Phoenix Sky Harbor Intl Airport

Cabin classes available on flights to Chicago. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Top Frontier flights

The most popular destinations for flights with Frontier according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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