HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sky Harbor Intl

$77+ Cheap flights from Knoxville (TYS) to Sky Harbor Intl (PHX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHX
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Sky Harbor Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl are usually found in January or July, booked 33 days in advance, depart on a Tuesday or Thursday and return on a Friday

Cheap flight deals from Knoxville to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Sky Harbor Intl (PHX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 20, 2025.

Round-trip from

$129
(Booking.com)

One-way from

$77
(Priceline)

Popular in

April

Cheapest in

January

Average price

$269

Good round-trip deal

$136 or less

Good one-way deal

$71 or less
From Knoxville McGhee Tyson to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl.
Search Deals
Price to beat on a one-way flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl.
Search Deals

Find flight deals from Knoxville to Sky Harbor Intl

Cheapest flights from Knoxville to Sky Harbor Intl
Explore the most affordable flight options available from Knoxville to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This Booking.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Sun 9/214:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Deal found 8/18$129
This Cheapflightsfares deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Sun 9/144:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Deal found 8/17$136
This Cheapflightsfares deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Sun 9/74:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Deal found 8/19$143
This Priceline deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/48:40 pmTYS - PHX
1 stop5h 47mFrontier
Sun 9/76:30 amPHX - TYS
1 stop6h 48mFrontier
Deal found 8/19$152
This Cheapflightsfares deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:52 pmTYS - PHX
Nonstop4h 15mAllegiant Air
Sun 8/313:57 pmPHX - TYS
Nonstop3h 27mAllegiant Air
Deal found 8/18$160
This FlightHub deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/118:40 pmTYS - PHX
1 stop5h 47mMultiple Airlines
Sun 9/144:19 pmPHX - TYS
Nonstop3h 31mMultiple Airlines
Deal found 8/17$167
This FlightHub deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/188:40 pmTYS - PHX
1 stop5h 47mFrontier
Mon 9/229:05 amPHX - TYS
1 stop7h 40mFrontier
Deal found 8/17$168
This FlightHub deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:33 pmTYS - PHX
Nonstop3h 56mMultiple Airlines
Mon 9/229:05 amPHX - TYS
1 stop7h 40mMultiple Airlines
Deal found 8/19$178
This FlightHub deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/178:17 pmTYS - PHX
1 stop17h 57mFrontier
Mon 10/207:21 amPHX - TYS
1 stop9h 11mFrontier
Deal found 8/19$179
This Cheapflightsfares deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:20 amTYS - PHX
Nonstop3h 57mAllegiant Air
Mon 10/2011:49 amPHX - TYS
Nonstop3h 30mAllegiant Air
Deal found 8/19$182
This Justfly.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:52 pmTYS - PHX
Nonstop4h 15mAllegiant Air
Thu 9/44:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Deal found 8/18$185
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/281:52 pmTYS - PHX
Nonstop4h 15mMultiple Airlines
Thu 9/48:37 amPHX - TYS
1 stop8h 13mMultiple Airlines
Deal found 8/18$188

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Sky Harbor Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
Use the filters below to find and compare flights from Knoxville to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Knoxville

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 9/18

2:33 pm-3:29 pm

Nonstop3h 56m

Phoenix Sky Harbor Intl

Sun 9/21

4:19 pm-10:50 pm

Nonstop3h 31m

$129

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 9/4

2:33 pm-3:29 pm

Nonstop3h 56m

Phoenix Sky Harbor Intl

Sun 9/21

4:19 pm-10:50 pm

Nonstop3h 31m

$129

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 9/11

2:33 pm-3:29 pm

Nonstop3h 56m

Phoenix Sky Harbor Intl

Sun 9/14

4:19 pm-10:50 pm

Nonstop3h 31m

$136

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 9/4

2:33 pm-3:29 pm

Nonstop3h 56m

Phoenix Sky Harbor Intl

Sun 9/7

4:19 pm-10:50 pm

Nonstop3h 31m

$143

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Mon 9/15

8:35 pm-11:57 pm

1 stop6h 22m

Phoenix Sky Harbor Intl

Mon 9/22

9:05 am-7:45 pm

1 stop7h 40m

$152

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 9/11

8:40 pm-11:27 pm

1 stop5h 47m

Phoenix Sky Harbor Intl

Sun 9/14

6:00 am-4:18 pm

1 stop7h 18m

$152

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 9/4

8:40 pm-11:27 pm

1 stop5h 47m

Phoenix Sky Harbor Intl

Sun 9/7

6:30 am-4:18 pm

1 stop6h 48m

$152

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 8/28

1:52 pm-3:07 pm

Nonstop4h 15m

Phoenix Sky Harbor Intl

Sun 8/31

3:57 pm-10:24 pm

Nonstop3h 27m

$160

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 9/11

8:40 pm-11:27 pm

1 stop5h 47m

Phoenix Sky Harbor Intl

Sun 9/14

4:19 pm-10:50 pm

Nonstop3h 31m

$167

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 9/18

8:40 pm-11:27 pm

1 stop5h 47m

Phoenix Sky Harbor Intl

Mon 9/22

9:05 am-7:45 pm

1 stop7h 40m

$168

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 20 results
1
2

Best time to book a flight from Knoxville to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Phoenix Sky Harbor Intl Airport

How far ahead should I book a flight from Knoxville to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Sky Harbor Intl. Price data was last updated on August 8, 2025.

To ensure you get the cheapest price possible for a flight from Knoxville to Phoenix Sky Harbor Intl Airport, you should look to book at least 33 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Knoxville to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Knoxville to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Knoxville to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to PHX?

Find hourly flight availability from Knoxville to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Knoxville to Phoenix Sky Harbor Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Knoxville to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Sky Harbor Intl. Price data was last updated on August 17, 2025.

Travelers seeking maximum savings on their Knoxville to Phoenix Sky Harbor Intl Airport flight should consider departing on Sunday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sky Harbor Intl. Reviews last updated August 20, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Phoenix Sky Harbor Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,928 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
701 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.8
Fair
3,207 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Overall

8.0

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Knoxville to Phoenix Sky Harbor Intl?

    Most people fly from Knoxville McGhee Tyson (TYS) if they book a flight from Knoxville to Phoenix Sky Harbor Intl. On average, McGhee Tyson has 0 outbound flights to Phoenix Sky Harbor Intl per day from 5 airlines. Knoxville McGhee Tyson is conveniently located just 11.3 mi from Knoxville’s city center.

  • How long is the flight from Knoxville to Phoenix Sky Harbor Intl Airport?

    Allegiant Air can get you from Knoxville to Phoenix Sky Harbor Intl Airport in just under 3h 56m. Your travel time will be generally consistent. The distance between Knoxville and Phoenix Sky Harbor Intl Airport is about 1594 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Knoxville to Phoenix Sky Harbor Intl Airport round-trip?

    Cheapflights users have booked flights from Knoxville to Phoenix Sky Harbor Intl Airport round-trip from $114. Other airlines that can offer you cheap pricing are Delta, from $128, and Frontier, from $137. Allegiant Air is priced at 65% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Knoxville to Phoenix Sky Harbor Intl Airport?

    The cheapest flight price from Knoxville to Phoenix Sky Harbor Intl Airport is $61. On average you can expect to pay $168. The most popular route, (Knoxville McGhee Tyson - Phoenix Sky Harbor Intl), can usually be booked for $136.

  • Can I find deals for flights from Knoxville to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on Knoxville to Sky Harbor Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Sky Harbor Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Sky Harbor Intl.

  • Can I find deals for business class flights from Knoxville to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Knoxville to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Phoenix Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Knoxville to Phoenix Sky Harbor Intl Airport (average of $258). Flying from Knoxville to Phoenix Sky Harbor Intl Airport in March is currently the most expensive (average of $337). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Payson
Chandler
Glendale
Globe
Goodyear
Surprise
Casa Grande
Buckeye
Camp Verde
Peoria
Paradise Valley
Avondale
Guadalupe

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Sky Harbor Intl flights
Memphis to Sky Harbor Intl flights
Chattanooga to Sky Harbor Intl flights
Blountville to Sky Harbor Intl flights
Memphis to Phoenix-Mesa Gateway flights

Top 5 airlines flying from Knoxville to Sky Harbor Intl

Discover the top 5 airlines that operate flights from Knoxville to Sky Harbor Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$114Average$226FlexibilityNo cancel feeOn-time88%
DeltaCheapest$128Average$434FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$137Average$282FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$228Average$536FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$256Average$488FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.