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$78+ Cheap flights from Knoxville (TYS) to Phoenix

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 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHX
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Phoenix are usually found in September or August, booked 36 days in advance, depart on a Friday or Sunday and return on a Wednesday

Cheap flight deals from Knoxville to Phoenix

Cheapest flights from Knoxville to Phoenix
Explore the most affordable flight options available from Knoxville to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/21. 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 5/78:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Sun 5/109:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 3/21$183
This Cheapflightsfares deal was found by Cheapflights users on 3/21. 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.
Sun 4/128:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Sun 4/269:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 3/21$218
This CheapOair deal was found by Cheapflights users on 3/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:28 pm
TYS
-
PHX
1 stop18h 08m
Frontier
Sat 4/259:24 pm
PHX
-
TYS
1 stop15h 09m
Frontier
Deal found 3/24$220
This Cheapflightsfares deal was found by Cheapflights users on 3/20. 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 4/168:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Thu 4/239:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 3/20$224
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sun 4/198:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Thu 4/239:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 3/20$239
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sun 5/38:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Sun 5/109:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 3/20$242
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sun 4/128:00 am
TYS
-
PHX
Nonstop4h 06m
Multiple Airlines
Sun 4/195:08 am
PHX
-
TYS
2 stops33h 22m
Multiple Airlines
Deal found 3/20$249
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sun 4/128:00 am
TYS
-
PHX
Nonstop4h 06m
Multiple Airlines
Mon 4/2010:29 pm
PHX
-
TYS
2 stops33h 07m
Multiple Airlines
Deal found 3/20$252
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 5/282:49 pm
TYS
-
PHX
Nonstop4h 10m
Allegiant Air
Sun 5/314:49 pm
PHX
-
TYS
Nonstop3h 27m
Allegiant Air
Deal found 3/20$253
This Kiwi.com deal was found by Cheapflights users on 3/20. 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.
Sun 4/128:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Sun 4/199:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 3/20$255

Find flight deals from Knoxville to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Phoenix (PH1). 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 March 24, 2026.

Round-trip from

$183
(Cheapflightsfares)

One-way from

$78
(Cheapflightsfares)

Popular in

November

Cheapest in

September

Average price

$342
From Knoxville McGhee Tyson to Phoenix
Search Deals
One-way flight from Knoxville McGhee Tyson to Phoenix
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Phoenix 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 March 24, 2026.
Use the filters below to find and compare flights from Knoxville to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Wed 4/22

5:15 pm-9:41 pm

1 stop7h 26m

Phoenix Sky Harbor Intl

Sat 4/25

8:30 am-7:56 pm

1 stop8h 26m

$292

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sat 5/2

7:00 am-11:20 am

1 stop7h 20m

Phoenix Sky Harbor Intl

Mon 5/4

11:30 pm-10:06 am

1 stop7h 36m

$348
Quickest round-trip

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sat 5/2

6:40 am-12:15 pm

2 stops8h 35m

Phoenix Sky Harbor Intl

Mon 5/4

5:00 am-2:10 pm

1 stop6h 10m

$384

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 5/7

6:35 am-12:40 pm

2 stops9h 05m

Phoenix Sky Harbor Intl

Sun 5/10

8:00 am-9:05 pm

2 stops10h 05m

$424

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sat 4/25

2:25 pm-7:49 pm

1 stop8h 24m

Phoenix Sky Harbor Intl

Wed 4/29

12:48 pm-11:08 pm

1 stop7h 20m

$429

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Tue 4/28

10:49 am-8:19 pm

2 stops12h 30m

Phoenix Sky Harbor Intl

Sat 5/2

11:47 pm-10:49 am

1 stop8h 02m

$434

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Tue 4/14

7:05 am-1:05 pm

2 stops9h 00m

Phoenix Sky Harbor Intl

Tue 4/21

7:05 am-8:50 pm

2 stops10h 45m

$443

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 5/7

6:01 pm-11:53 pm

1 stop8h 52m

Phoenix Sky Harbor Intl

Sun 5/10

11:47 pm-10:49 am

1 stop8h 02m

$455

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Tue 4/28

7:00 am-1:11 pm

1 stop9h 11m

Phoenix Sky Harbor Intl

Fri 5/1

6:44 pm-10:49 am

2 stops13h 05m

$469
Cheapest one-way
Quickest one-way

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sun 4/12

8:00 am-9:06 am

Nonstop4h 06m

$78

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Knoxville to Phoenix

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

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Phoenix. Price data was last updated on March 13, 2026.

Booking 36 days in advance of your planned departure date is, on average, the best time to get cheap flights from Knoxville to Phoenix. 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 Knoxville to Phoenix?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Phoenix (average of $106). Flying from Knoxville to Phoenix in December is currently the most expensive (average of $203). 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 Phoenix

Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated March 24, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAllegiant Air from Knoxville to Phoenix by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,321 reviews

Crew

8.5

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

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
8,321 reviews
Delta
7.9
Good
8,321 reviews

Crew

8.5

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

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
9,470 reviews
Delta
7.9
Good
8,321 reviews

Crew

8.5

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

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
7.3
Good
710 reviews
Delta
7.9
Good
8,321 reviews

Crew

8.5

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

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
7.1
Good
11,491 reviews
Delta
7.9
Good
8,321 reviews

Crew

8.5

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

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
3,018 reviews
Delta
7.9
Good
8,321 reviews

Crew

8.5

Entertainment

7.8

Boarding

8.1

Comfort

7.9

Food

7.2

Overall

7.9

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 Knoxville to Phoenix. 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?

    If you book a flight to Phoenix from Knoxville, you will be flying from 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 McGhee Tyson to Phoenix per day from 5 different airlines.

  • How long is the flight from Knoxville to Phoenix?

    There are many flights that can get you from Knoxville to Phoenix in 7h 26m. Fly via United Airlines or Southwest to get the fastest option. The distance between Knoxville and Phoenix is about 1594 mi. This flight may include one or multiple stops.

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

    Flying on Frontier is currently your cheapest option to Phoenix, with prices starting at $70. Additional round-trip tickets that might be worth considering are offered by Allegiant Air and Delta, with the lowest prices starting at $111 and $128, respectively. Frontier is 77% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Knoxville to Phoenix one-way?

    $65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Allegiant Air and American Airlines, with prices starting from $71 and $125, respectively.

  • What are the cheapest flights from Knoxville to Phoenix?

    Looking at all options, your cheapest flight can be booked for $79. While the most popular route (Knoxville McGhee Tyson - Phoenix Sky Harbor Intl) can be booked for $271 on average, our data indicates $213 when flying from Knoxville to Phoenix.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Phoenix 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?

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Phoenix (average of $106). Flying from Knoxville to Phoenix in December is currently the most expensive (average of $203). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Knoxville to Phoenix

Discover the top 5 airlines that operate flights from Knoxville to Phoenix. 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$70Average$268FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$111Average$230FlexibilityNo cancel feeOn-time88%
DeltaCheapest$128Average$315FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$170Average$437FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$388FlexibilityNo cancel feeOn-time71%

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