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Knoxville

$109+ Cheap flights from Sky Harbor Intl (PHX) to Knoxville (TYS)

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson are usually found in February or January, booked 88 days in advance, depart on a Wednesday or Friday and return on a Friday

Cheap flight deals from Sky Harbor Intl to Knoxville

Cheapest flights from Sky Harbor Intl to Knoxville
Explore the most affordable flight options available from Sky Harbor Intl to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This CheapOair deal was found by Cheapflights users on 1/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:51 pm
PHX
-
TYS
1 stop17h 15m
Frontier
Mon 3/28:13 pm
TYS
-
PHX
1 stop23h 06m
Frontier
Deal found 1/25$179
This Booking.com deal was found by Cheapflights users on 1/25. 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 2/2611:54 am
PHX
-
TYS
Nonstop3h 23m
Allegiant Air
Sun 3/18:30 am
TYS
-
PHX
Nonstop4h 34m
Allegiant Air
Deal found 1/25$190
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:51 pm
PHX
-
TYS
1 stop17h 15m
Multiple Airlines
Sun 3/18:30 am
TYS
-
PHX
Nonstop4h 34m
Multiple Airlines
Deal found 1/25$219
This Booking.com deal was found by Cheapflights users on 1/25. 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 2/51:21 pm
PHX
-
TYS
Nonstop3h 23m
Allegiant Air
Sun 2/810:05 am
TYS
-
PHX
Nonstop4h 26m
Allegiant Air
Deal found 1/25$221
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:51 pm
PHX
-
TYS
1 stop17h 15m
Multiple Airlines
Mon 3/29:36 pm
TYS
-
PHX
2 stops18h 08m
Multiple Airlines
Deal found 1/24$223
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/712:06 pm
PHX
-
TYS
Nonstop3h 28m
Allegiant Air
Tue 3/109:00 am
TYS
-
PHX
Nonstop4h 16m
Allegiant Air
Deal found 1/25$225
This Frontier deal was found by Cheapflights users on 1/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/67:00 am
PHX
-
TYS
1 stop6h 30m
Frontier
Mon 3/28:13 pm
TYS
-
PHX
1 stop6h 28m
Frontier
Deal found 1/25$229
This Priceline deal was found by Cheapflights users on 1/25. 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.
Fri 2/67:00 am
PHX
-
TYS
1 stop6h 30m
Frontier
Mon 2/94:30 pm
TYS
-
PHX
1 stop10h 10m
Frontier
Deal found 1/25$235
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:52 am
PHX
-
TYS
1 stop8h 35m
Multiple Airlines
Sun 2/225:56 pm
TYS
-
PHX
2 stops32h 59m
Multiple Airlines
Deal found 1/24$236
This Kiwi.com deal was found by Cheapflights users on 1/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Sun 4/198:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Deal found 1/23$240

Find flight deals from Sky Harbor Intl to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Knoxville (TYS). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(CheapOair)

One-way from

$109
(Super.com)

Popular in

March

Cheapest in

February

Average price

$240

Good round-trip deal

$183 or less

Good one-way deal

$134 or less
Provider with most accurate pricing for Phoenix Sky Harbor Intl-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Knoxville McGhee Tyson flights.
Search Deals
From Phoenix Sky Harbor Intl to Knoxville McGhee Tyson
Search Deals
One-way flight from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 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 January 2026
Search Deals
Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson.
Search Deals
Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl to Knoxville 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 January 26, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Knoxville that are best for you.

Fly from

Sky Harbor Intl

Fly to

Knoxville

Route

Depart

Return

Price

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 2/26

7:36 pm-6:06 pm

1 stop20h 30m

Knoxville McGhee Tyson

Mon 3/2

8:13 pm-12:41 am

1 stop6h 28m

$191

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 2/26

10:51 pm-6:06 pm

1 stop17h 15m

Knoxville McGhee Tyson

Sun 3/1

8:30 am-11:04 am

Nonstop4h 34m

$219

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 2/26

10:51 pm-6:06 pm

1 stop17h 15m

Knoxville McGhee Tyson

Mon 3/2

9:36 pm-1:44 pm

2 stops18h 08m

$223

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 4/15

12:54 pm-3:33 pm

1 stop23h 39m

Knoxville McGhee Tyson

Sun 4/19

4:28 pm-5:43 pm

1 stop28h 15m

$247

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 3/7

12:06 pm-5:34 pm

Nonstop3h 28m

Knoxville McGhee Tyson

Thu 4/2

8:00 am-9:06 am

Nonstop4h 06m

$253

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 3/1

11:54 am-5:17 pm

Nonstop3h 23m

Knoxville McGhee Tyson

Sun 3/15

10:54 am-12:10 pm

Nonstop4h 16m

$254

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 3/4

11:50 pm-9:04 am

1 stop7h 14m

Knoxville McGhee Tyson

Tue 3/31

5:40 am-9:22 am

1 stop6h 42m

$279

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 3/4

11:50 pm-9:04 am

1 stop7h 14m

Knoxville McGhee Tyson

Mon 3/30

5:10 pm-10:49 pm

1 stop8h 39m

$279

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Fri 3/6

12:40 am-10:49 am

1 stop8h 09m

Knoxville McGhee Tyson

Tue 3/10

4:18 pm-8:21 pm

1 stop7h 03m

$297

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 2/19

6:05 am-4:31 pm

1 stop8h 26m

Knoxville McGhee Tyson

Sat 2/21

5:00 pm-1:07 am

1 stop10h 07m

$297

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 21 results
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Compare providers for flights from Sky Harbor Intl to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sky Harbor Intl to Knoxville in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-Knoxville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Phoenix Sky Harbor Intl Airport-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Knoxville

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Knoxville. Price data was last updated on January 23, 2026.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Knoxville, you should look to book at least 88 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 Phoenix Sky Harbor Intl Airport to Knoxville?

Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Knoxville (average of $88). Flying from Phoenix Sky Harbor Intl Airport to Knoxville in December is currently the most expensive (average of $162). 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.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated January 26, 2026.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Knoxville, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,113 reviews
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,199 reviews
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,189 reviews
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
706 reviews
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,057 reviews
Delta
7.9
Good
8,113 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Knoxville. 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 into for flights to Knoxville from Phoenix Sky Harbor Intl?

    If you book a flight to Knoxville from Phoenix Sky Harbor Intl, you will be flying to McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 0 flights from Phoenix Sky Harbor Intl to McGhee Tyson per day from 5 different airlines.

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

    For as low as $191, Frontier can have you in Knoxville from Phoenix Sky Harbor Intl Airport in 20h 30m. The distance between Phoenix Sky Harbor Intl Airport and Knoxville is about 1594 mi.

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

    Frontier, at $96, was found to be the cheapest airline from Phoenix Sky Harbor Intl Airport to Knoxville.Alternate airlines to your destination round-trip include Allegiant Air and United Airlines. These flights start at 66% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Knoxville one-way?

    The cheapest airlines for a one-way flight from Phoenix Sky Harbor Intl Airport to Knoxville are Allegiant Air ($65), Frontier ($92), and United Airlines ($114).

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

    Looking at all options, your cheapest flight can be booked for $92. While the most popular route (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson) can be booked for $190 on average, our data indicates $193 when flying from Phoenix Sky Harbor Intl Airport to Knoxville.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Knoxville 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 Phoenix Sky Harbor Intl Airport to Knoxville?

    Currently, August is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Knoxville (average of $88). Flying from Phoenix Sky Harbor Intl Airport to Knoxville in December is currently the most expensive (average of $162). 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 Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Oak Ridge
Murphy

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Alternative routes for Sky Harbor Intl to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to Nashville flights
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Top 5 airlines flying from Sky Harbor Intl to Knoxville

Discover the top 5 airlines that operate flights from Sky Harbor Intl to Knoxville. 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$96Average$255FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$109Average$224FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$170Average$413FlexibilityNo cancel feeOn-time69%
DeltaCheapest$209Average$335FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$250Average$386FlexibilityNo cancel feeOn-time71%

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