HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Knoxville

$71+ Cheap flights from Phoenix 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Dec 24 — Dec 311
Wed 12/24
Wed 12/31
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Phoenix to Knoxville 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 Phoenix to Knoxville McGhee Tyson are usually found in February or January, booked 47 days in advance, depart on a Wednesday or Friday and return on a Friday

Cheap flight deals from Phoenix to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) 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 November 24, 2025.

Round-trip from

$142
(Booking.com)

One-way from

$71
(Cheapflightsfares)

Popular in

March

Cheapest in

February

Average price

$313
From Phoenix to Knoxville McGhee Tyson
Search Deals
One-way flight from Phoenix to Knoxville McGhee Tyson
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Find flight deals from Phoenix to Knoxville

Cheapest flights from Phoenix to Knoxville
Explore the most affordable flight options available from Phoenix to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 24, 2025.

This Booking.com deal was found by Cheapflights users on 11/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/184:56 pmPHX - TYS
Nonstop3h 26mAllegiant Air
Sun 1/1110:00 amTYS - PHX
Nonstop4h 26mAllegiant Air
Deal found 11/24$142
This Cheapflightsfares deal was found by Cheapflights users on 11/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:56 pmPHX - TYS
Nonstop3h 26mAllegiant Air
Sun 12/72:01 pmTYS - PHX
Nonstop4h 05mAllegiant Air
Deal found 11/23$166
This Cheapflightsfares deal was found by Cheapflights users on 11/22. 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.
Mon 12/15:27 pmPHX - TYS
Nonstop3h 20mAllegiant Air
Thu 12/42:01 pmTYS - PHX
Nonstop4h 05mAllegiant Air
Deal found 11/22$197
This Kiwi.com deal was found by Cheapflights users on 11/23. 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 12/184:56 pmPHX - TYS
Nonstop3h 26mAllegiant Air
Thu 12/251:10 pmTYS - PHX
Nonstop4h 05mAllegiant Air
Deal found 11/23$204
This Trip.com deal was found by Cheapflights users on 11/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/44:56 pmPHX - TYS
Nonstop3h 26mMultiple Airlines
Sun 12/74:52 pmTYS - PHX
1 stop6h 29mMultiple Airlines
Deal found 11/22$210
This Kiwi.com deal was found by Cheapflights users on 11/23. 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.
Wed 12/177:00 amPHX - TYS
1 stop28h 11mMultiple Airlines
Thu 12/251:10 pmTYS - PHX
Nonstop4h 05mMultiple Airlines
Deal found 11/23$219
This Kiwi.com deal was found by Cheapflights users on 11/24. 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 12/184:56 pmPHX - TYS
Nonstop3h 26mMultiple Airlines
Sun 1/111:39 pmTYS - PHX
2 stops27h 34mMultiple Airlines
Deal found 11/24$230
This Cheapflightsfares deal was found by Cheapflights users on 11/22. 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 12/184:56 pmPHX - TYS
Nonstop3h 26mAllegiant Air
Tue 12/2312:21 pmTYS - PHX
Nonstop4h 05mAllegiant Air
Deal found 11/22$231
This Priceline deal was found by Cheapflights users on 11/22. 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 12/47:00 amPHX - TYS
1 stop6h 57mFrontier
Sun 12/74:52 pmTYS - PHX
1 stop6h 29mFrontier
Deal found 11/22$232
This Priceline deal was found by Cheapflights users on 11/22. 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 12/187:00 amPHX - TYS
1 stop6h 31mFrontier
Tue 12/234:46 pmTYS - PHX
1 stop9h 43mFrontier
Deal found 11/22$234

Cheapflights Fare Finder

 
Customize your flight search to find flights from Phoenix 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 November 24, 2025.
Use the filters below to find and compare flights from Phoenix to Knoxville that are best for you.

Fly from

Phoenix

Fly to

Knoxville

Route

Depart

Return

Price

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 12/18

4:56 pm-10:22 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Sun 1/11

10:00 am-12:26 pm

Nonstop4h 26m

$142

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 12/4

4:56 pm-10:22 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Sun 12/7

2:01 pm-4:06 pm

Nonstop4h 05m

$173

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 12/18

4:56 pm-10:22 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Sun 1/11

1:39 pm-3:13 pm

2 stops27h 34m

$230

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 12/18

4:56 pm-10:22 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Tue 12/23

12:21 pm-2:26 pm

Nonstop4h 05m

$231

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 12/3

4:32 pm-3:57 pm

1 stop21h 25m

Knoxville McGhee Tyson

Sun 12/7

4:52 pm-9:21 pm

1 stop6h 29m

$246

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 1/4

4:56 pm-10:22 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Sun 1/11

7:26 pm-11:29 pm

3 stops54h 03m

$277

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 12/11

7:00 am-3:57 pm

1 stop6h 57m

Knoxville McGhee Tyson

Sun 12/14

4:52 pm-12:44 am

1 stop9h 52m

$288

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 2/11

12:59 am-8:38 am

1 stop5h 39m

Knoxville McGhee Tyson

Sun 2/15

5:46 am-10:48 am

1 stop7h 02m

$301

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Tue 12/23

3:16 pm-8:42 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Wed 12/24

1:58 pm-12:29 am

1 stop12h 31m

$310

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 12/3

4:32 pm-1:11 pm

1 stop18h 39m

Knoxville McGhee Tyson

Fri 12/5

1:41 pm-10:18 pm

1 stop10h 37m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 18 results
1
2

Best time to book a flight from Phoenix to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Phoenix 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 to Knoxville

How far ahead should I book a flight from Phoenix to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Knoxville. Price data was last updated on November 21, 2025.

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Phoenix to Knoxville?

Currently, August is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $88). Flying from Phoenix to Knoxville in September is currently the most expensive (average of $157). 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 PHX to TYS?

Find hourly flight availability from Phoenix to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 24, 2025.

When flying from Phoenix to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 67% versus a flight in the morning.

What is the cheapest day to fly from Phoenix to Knoxville?

Use this chart to determine the cheapest time to fly round-trip from Phoenix to Knoxville. Price data was last updated on December 16, 2024.

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

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 November 24, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Phoenix to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,993 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

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
7,993 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

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
9,039 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

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
11,043 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

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
701 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

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
5.8
Fair
3,097 reviews
Delta
7.9
Good
7,993 reviews

Boarding

8.1

Entertainment

7.9

Food

7.3

Comfort

7.9

Overall

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 Phoenix 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?

    Located just 11.3 mi from the city center, Knoxville McGhee Tyson is the airport most travelers will use when flying to Knoxville from Phoenix. Booking flights from Phoenix to McGhee Tyson (TYS) should be relatively easy as there are 0 daily inbound flights from Phoenix from 5 different airlines.

  • How long is the flight from Phoenix to Knoxville?

    For as low as $142, Allegiant Air can have you in Knoxville from Phoenix in 3h 26m. The distance from Phoenix to Knoxville is about 1594 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Phoenix to Knoxville round-trip?

    Our cheapest airline available from Phoenix to Knoxville is Allegiant Air. Our recent data shows that you can find tickets from as low as $114 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $119 and $250 round-trip. Allegiant Air is 60% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Phoenix to Knoxville?

    While on average a flight from Phoenix to Knoxville is generally $221, our data shows the cheapest flight currently is $78. When looking at the most popular route, (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson), you can expect to pay $150 for that flight.

  • Can I find deals for flights from Phoenix to Knoxville that include hotel bookings?

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

  • How can I find direct flights from Phoenix to Knoxville?

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

  • Can I find deals for business class flights from Phoenix to Knoxville?

    Yes. Cheapflights offers flight deals from Phoenix 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 to Knoxville?

    Currently, August is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $88). Flying from Phoenix to Knoxville in September is currently the most expensive (average of $157). 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
Morristown
Cherokee
Crossville
Corbin
Bryson City
Alcoa
Oak Ridge
Murphy

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.

Top 5 airlines flying from Phoenix to Knoxville

Discover the top 5 airlines that operate flights from Phoenix 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 November 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$114Average$222FlexibilityNo cancel feeOn-time88%
FrontierCheapest$119Average$263FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$250Average$453FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$423FlexibilityNo cancel feeOn-time71%
DeltaCheapest$269Average$338FlexibilityNo cancel feeOn-timeN/A

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.