HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Phoenix

$39+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHX
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Phoenix 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 are usually found in September or August, booked 67 days in advance, depart on a Thursday or Wednesday 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 December 4, 2025.

This Mytrip deal was found by Cheapflights users on 12/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:46 pmTYS - PHX
1 stop9h 43mMultiple Airlines
Sun 1/44:56 pmPHX - TYS
Nonstop3h 26mMultiple Airlines
Deal found 12/2$236
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/144:52 pmTYS - PHX
1 stop20h 13mMultiple Airlines
Wed 12/177:43 pmPHX - TYS
2 stops15h 28mMultiple Airlines
Deal found 12/2$239
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 12/72:01 pmTYS - PHX
Nonstop4h 05mMultiple Airlines
Wed 12/107:00 amPHX - TYS
1 stop28h 11mMultiple Airlines
Deal found 12/2$253
This Priceline deal was found by Cheapflights users on 12/3. 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.
Mon 12/84:52 pmTYS - PHX
1 stop9h 52mFrontier
Mon 12/157:00 amPHX - TYS
1 stop6h 57mFrontier
Deal found 12/3$254
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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.
Tue 12/2312:21 pmTYS - PHX
Nonstop4h 05mAllegiant Air
Sun 1/44:56 pmPHX - TYS
Nonstop3h 26mAllegiant Air
Deal found 12/2$265
This Kiwi.com deal was found by Cheapflights users on 12/4. 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 12/184:26 pmTYS - PHX
1 stop10h 03mFrontier
Tue 12/239:36 amPHX - TYS
2 stops51h 55mFrontier
Deal found 12/4$267
This Gotogate deal was found by Cheapflights users on 12/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:46 pmTYS - PHX
1 stop9h 43mFrontier
Sun 1/410:31 pmPHX - TYS
1 stop15h 20mFrontier
Deal found 12/2$292
This Booking.com deal was found by Cheapflights users on 12/2. 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 12/44:52 pmTYS - PHX
1 stop17h 14mMultiple Airlines
Sun 12/74:56 pmPHX - TYS
Nonstop3h 26mMultiple Airlines
Deal found 12/2$297
This Kiwi.com deal was found by Cheapflights users on 12/3. 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 12/184:26 pmTYS - PHX
1 stop10h 03mMultiple Airlines
Tue 12/237:25 amPHX - TYS
1 stop26h 08mMultiple Airlines
Deal found 12/3$301

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 December 4, 2025.

Round-trip from

$114
(Cheapflightsfares)

One-way from

$39
(Mytrip)

Popular in

November

Cheapest in

September

Average price

$343
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. 8% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 4, 2025.
Use the filters below to find and compare flights from Knoxville to Phoenix that are best for you.

Fly from

Knoxville

Fly to

Phoenix

Route

Depart

Return

Price

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 2/12

5:35 pm-12:33 am

1 stop8h 58m

Phoenix Sky Harbor Intl

Sat 2/14

5:12 pm-4:40 pm

1 stop21h 28m

$236

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 2/19

5:56 pm-5:49 pm

2 stops25h 53m

Phoenix Sky Harbor Intl

Thu 2/26

6:45 am-4:40 pm

1 stop7h 55m

$237

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 3/26

8:00 am-9:16 am

Nonstop4h 16m

Phoenix Sky Harbor Intl

Sun 3/29

10:06 am-4:34 pm

Nonstop3h 28m

$256

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Wed 2/18

3:52 pm-9:53 am

2 stops20h 01m

Phoenix Sky Harbor Intl

Thu 2/26

11:54 am-5:17 pm

Nonstop3h 23m

$257

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 2/5

1:39 pm-3:22 pm

2 stops27h 43m

Phoenix Sky Harbor Intl

Sun 2/8

1:16 pm-6:39 pm

Nonstop3h 23m

$258

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Mon 1/5

4:46 pm-3:31 pm

1 stop24h 45m

Phoenix Sky Harbor Intl

Fri 1/9

2:15 pm-11:09 am

2 stops18h 54m

$264

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 12/18

4:26 pm-12:29 am

1 stop10h 03m

Phoenix Sky Harbor Intl

Tue 12/23

9:36 am-3:31 pm

2 stops51h 55m

$267

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Wed 2/18

5:35 am-10:06 am

1 stop6h 31m

Phoenix Sky Harbor Intl

Sat 2/21

12:59 am-11:17 am

1 stop8h 18m

$269

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 1/1

6:20 pm-11:29 pm

1 stop7h 09m

Phoenix Sky Harbor Intl

Thu 1/8

6:13 am-3:46 pm

1 stop7h 33m

$271

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 12/18

4:26 pm-12:29 am

1 stop10h 03m

Phoenix Sky Harbor Intl

Tue 12/23

10:26 pm-8:39 pm

2 stops20h 13m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 18 results
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 November 28, 2025.

Booking 66 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 $159). 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 Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Knoxville to Phoenix at noon. If you’re flexible enough to do this you can expect to save up to 64% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Phoenix. Price data was last updated on December 1, 2024.

Travelers seeking maximum savings on their Knoxville to Phoenix flight should consider departing on Wednesday 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.

How much does it cost to fly round-trip from Knoxville to Phoenix?

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 December 4, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines 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
8,011 reviews

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

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
8,011 reviews
Delta
7.9
Good
8,011 reviews

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

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
9,066 reviews
Delta
7.9
Good
8,011 reviews

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

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
7.2
Good
11,047 reviews
Delta
7.9
Good
8,011 reviews

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

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
7.2
Good
698 reviews
Delta
7.9
Good
8,011 reviews

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Entertainment

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 4 different airlines.

  • How long is the flight from Knoxville to Phoenix?

    There are many flights that can get you from Knoxville to Phoenix in 4h 16m. Fly via Frontier or Allegiant Air 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 Allegiant Air is currently your cheapest option to Phoenix, with prices starting at $109. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $128 and $170, respectively. Allegiant Air is 65% 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 $68 and $114, respectively.

  • What are the cheapest flights from Knoxville to Phoenix?

    Looking at all options, your cheapest flight can be booked for $90. While the most popular route (Knoxville McGhee Tyson - Phoenix Sky Harbor Intl) can be booked for $114 on average, our data indicates $228 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 $159). 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

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

Top 4 airlines flying from Knoxville to Phoenix

Discover the top 4 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$115Average$239FlexibilityNo cancel feeOn-time88%
DeltaCheapest$128Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$481FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$253Average$433FlexibilityNo 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.