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 19 days before departure. For the cheapest possible price, our data suggests booking 85 days before departure.

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

With an average price of $216 return, Frontier is not the cheapest airline to fly from Chicago to Phoenix Sky Harbor Intl Airport with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $159 on average.

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

Yes, Frontier does offer direct flights for the route, with around 10 flights per week.

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 $31. The most expensive day is generally Wednesday, where the average price is around $63.

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 $198 respectively.

$83 Cheap Frontier Flights from Chicago to Phoenix Sky Harbor Intl Airport

CHI - PHX

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

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

Sat, Apr 4 - Mon, Apr 13

3:35 pm - 5:54 pm

ORD

PHX

4h 19mnonstop

5:15 am - 3:12 pm

PHX

ORD

7h 57m

1 stop

$160Frontier

Sun, Apr 26 - Mon, Apr 27

6:20 am - 8:17 am

MDW

PHX

3h 57mnonstop

4:39 pm - 9:55 pm

PHX

MDW

3h 16mnonstop

$161Frontier

Mon, Apr 20 - Fri, Apr 24

7:35 am - 9:57 am

ORD

PHX

4h 22mnonstop

11:19 am - 5:00 pm

PHX

ORD

3h 41mnonstop

$161Frontier

Mon, Apr 20 - Fri, Apr 24

6:20 am - 8:17 am

MDW

PHX

3h 57mnonstop

4:34 pm - 9:50 pm

PHX

MDW

3h 16mnonstop

$162Frontier

Thu, Apr 16 - Fri, Apr 24

5:20 am - 3:58 pm

ORD

PHX

12h 38m

1 stop

11:19 am - 5:00 pm

PHX

ORD

3h 41mnonstop

$162Frontier

Mon, Apr 13 - Thu, Apr 16

6:40 am - 8:50 am

ORD

PHX

4h 10mnonstop

9:00 am - 12:13 pm

PHX

ORD

25h 13m

1 stop

$163Frontier

Sat, May 2 - Mon, May 4

8:55 am - 11:10 am

ORD

PHX

4h 15mnonstop

11:19 am - 5:00 pm

PHX

ORD

3h 41mnonstop

$165Frontier

Mon, Apr 13 - Mon, Apr 13

6:40 am - 8:50 am

ORD

PHX

4h 10mnonstop

10:00 am - 3:41 pm

PHX

ORD

3h 41mnonstop

$166Frontier

Thu, Apr 23 - Mon, Apr 27

6:20 am - 8:17 am

MDW

PHX

3h 57mnonstop

4:39 pm - 9:55 pm

PHX

MDW

3h 16mnonstop

$167Frontier

Mon, Apr 13 - Thu, Apr 16

6:40 am - 8:50 am

ORD

PHX

4h 10mnonstop

11:19 am - 5:00 pm

PHX

ORD

3h 41mnonstop

$167Frontier

Useful Info

Low season	June
High season	March
Cheapest flight	$83
Average price round-trip	$326
Good deal round-trip	$277

Best time to beat the crowds with an average 3% drop in price.

Most popular time to fly with an average 27% increase in price.

Flight from Chicago O'Hare 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 19 days before departure. For the cheapest possible price, our data suggests booking 85 days before departure.
Is Frontier the cheapest airline to fly with from Chicago to Phoenix Sky Harbor Intl Airport?
With an average price of $216 return, Frontier is not the cheapest airline to fly from Chicago to Phoenix Sky Harbor Intl Airport with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $159 on average.
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 $138 for a return flight and $51 for a one-way flight.
Does Frontier fly direct to Phoenix Sky Harbor Intl Airport from Chicago?
Yes, Frontier does offer direct flights for the route, with around 10 flights per week.
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 $31. The most expensive day is generally Wednesday, where the average price is around $63.
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 $198 respectively.

5.7

Fair3,025 verified ratings

6.0Boarding

4.3Entertainment

4.6Food

6.6Crew

5.5Comfort

4.0 Mediocre

DCA

DEN

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

2.0 Poor

Irene, Mar 2026

MCO

ORD

Never got that flight

2.0 Poor

Irene, Mar 2026

SAT

MCO

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

2.0 Poor

Lance, Mar 2026

PHX

ORD

It was cancelled

4.0 Mediocre

DEN

DCA

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

2.0 Poor

jon, Mar 2026

LAX

SEA

Remind customers of the need to have passport or new ID for boarding.

2.0 Poor

Ajay, Mar 2026

ORD

RSW

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

2.0 Poor

Sara, Mar 2026

SNA

PHX

The flight never took off and we spent 7 hours at the airport

10.0 Wonderful

Paul, Feb 2026

STL

MCO

Clean, on time

10.0 Wonderful

Delia, Feb 2026

DFW

PHX

Gate not determined until I got to the airport - hard to plan the trip to the airport.

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

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CHI - PHX

$83 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 19 days before departure. For the cheapest possible price, our data suggests booking 85 days before departure.

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

With an average price of $216 return, Frontier is not the cheapest airline to fly from Chicago to Phoenix Sky Harbor Intl Airport with. Instead, for the lowest price, our data suggests flying with Spirit Airlines, where a return flight costs $159 on average.

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 $138 for a return flight and $51 for a one-way flight.

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

Yes, Frontier does offer direct flights for the route, with around 10 flights per week.

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 $31. The most expensive day is generally Wednesday, where the average price is around $63.

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 $198 respectively.

Frontier Customer Reviews

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

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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.

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