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 8 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 $200 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?

Yes, Frontier does offer direct flights for the route, with around 6 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 Monday, when prices are around $44. The most expensive day is generally Saturday, where the average price is around $73.

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 March and October, where tickets cost $168 and $170 respectively.

$88 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

Sun, Dec 14 - Wed, Dec 17

7:24 pm - 10:29 pmMDW-PHX

4h 05mnonstop

12:59 am - 9:58 pmPHX-MDW

19h 59m1 stop

$164Frontier

Find Deal

Fri, Dec 12 - Thu, Dec 18

10:05 pm - 12:59 amORD-PHX

3h 54mnonstop

3:43 pm - 12:12 amPHX-ORD

7h 29m1 stop

$164Frontier

Find Deal

Wed, Dec 3 - Mon, Dec 8

2:49 pm - 10:18 pmMDW-PHX

32h 29m2 stops

10:29 am - 2:52 pmPHX-MDW

3h 23mnonstop

$165Frontier

Find Deal

Thu, Dec 11 - Sun, Dec 14

6:50 am - 2:51 pmORD-PHX

9h 01m1 stop

10:26 pm - 12:12 amPHX-ORD

24h 46m1 stop

$165Frontier

Find Deal

Thu, Jan 15 - Mon, Jan 19

9:07 pm - 12:44 amMDW-PHX

28h 37m1 stop

7:00 am - 11:17 amPHX-MDW

3h 17mnonstop

$166Frontier

Find Deal

Mon, Jan 12 - Fri, Jan 16

7:51 pm - 12:33 amORD-PHX

5h 42m1 stop

6:00 am - 10:38 amPHX-ORD

3h 38mnonstop

$166Frontier

Find Deal

Wed, Nov 26 - Wed, Nov 26

6:20 am - 9:25 amMDW-PHX

4h 05mnonstop

10:55 pm - 4:30 pmPHX-MDW

16h 35m1 stop

$167Frontier

Find Deal

Tue, Feb 17 - Thu, Feb 19

1:45 pm - 4:44 pmORD-PHX

3h 59mnonstop

6:45 am - 9:58 pmPHX-ORD

14h 13m2 stops

$167Frontier

Find Deal

Fri, Jan 2 - Fri, Jan 9

1:27 pm - 4:35 pmORD-PHX

4h 08mnonstop

3:00 pm - 7:43 pmPHX-ORD

3h 43mnonstop

$168Frontier

Find Deal

Sun, Jan 11 - Mon, Jan 19

7:00 am - 1:49 pmMDW-PHX

7h 49m1 stop

7:00 am - 11:17 amPHX-MDW

3h 17mnonstop

$169Frontier

Find Deal

Useful Info

Low season	June
High season	March
Cheapest flight	$88
Average price round-trip	$277
Good deal round-trip	$235

Most popular time to fly with an average 29% increase in price.

Flight from Chicago Midway Airport to Phoenix

(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 8 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 $200 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 $104 for a return flight and $45 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 6 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 Monday, when prices are around $44. The most expensive day is generally Saturday, where the average price is around $73.
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 March and October, where tickets cost $168 and $170 respectively.

5.8

Fair3,116 verified ratings

4.6Food

6.7Crew

6.0Boarding

5.5Comfort

4.4Entertainment

Pros +

Flight was on time and crew were good (in 763 reviews)

Cons -

On the ticket it said checked bag. (in 1044 reviews)

Show reviews that mention

2.0 Poor

Verified traveler, Nov 2025

FLL-ATL

There was no one at the counter to assist with our check in. The app didn’t work, so I arrived at the airport with time to check in and I couldn’t because no employees were there. When I finally got someone on the phone, it was inside the 60min rule and they said I could no longer check in and they could sell me another ticket. We had to scramble and pay an additional $800 for tickets and THEN AFTER (about 60 min from my original convo with customer service and 10min after original departure time) I had boarded my new flight, there was email saying my original flight from Frontier was delayed and leaving 2hr 50min later, but I STILL wouldn’t have been able to check in. Which means customer service should have been able to see it and let me check in because I was well within my check in time. When I call Frontier, they hang up on me. So their app didn’t work and they employees left and they take zero responsibility or assistance with their “customer service”

2.0 Poor

Christopher, Oct 2025

PHL-MCO

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

6.0 Okay

Verified traveler, Oct 2025

IND-MCO

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

2.0 Poor

Verified traveler, Oct 2025

DFW-SAN

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

10.0 Wonderful

Stephanie, Oct 2025

MSP-DFW

Very smooth flight and easy travel experience

10.0 Wonderful

Verified traveler, Oct 2025

IAH-MIA

Excellent crew. Wouldn't change anything.

10.0 Wonderful

Verified traveler, Oct 2025

TPA-ATL

It was efficient

8.0 Very good

Sean, Oct 2025

BWI-ATL

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

8.0 Very good

Sean, Oct 2025

ATL-BWI

Inbound plane was on time and flight departed on time with no issues while boarding.

10.0 Wonderful

Greg, Oct 2025

PAE-DEN

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

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

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CHI - PHX

$88 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?

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

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

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

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

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

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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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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