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$71+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHX
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Phoenix are usually found in January or July, booked 33 days in advance, depart on a Tuesday or Thursday and return on a Monday

Cheap 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 agosto 14, 2025.

Round-trip from

$177
(Cheapflightsfares)

One-way from

$71
(Cheapflightsfares)

Popular in

April

Cheapest in

January

Average price

$269
From Knoxville McGhee Tyson to Phoenix
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One-way flight from Knoxville McGhee Tyson to Phoenix
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Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 agosto 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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.
jue. 9/42:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
dom. 9/74:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Deal found 8/12$122
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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.
jue. 8/281:52 pmTYS - PHX
Nonstop4h 15mAllegiant Air
jue. 9/44:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Deal found 8/12$129
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
sáb. 10/1812:45 pmTYS - PHX
Nonstop3h 59mAllegiant Air
dom. 10/264:12 pmPHX - TYS
Nonstop3h 30mAllegiant Air
Deal found 8/14$177
This Mytrip deal was found by Cheapflights users on 8/12. 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.
jue. 9/48:40 pmTYS - PHX
1 stop5h 47mMultiple Airlines
dom. 9/74:19 pmPHX - TYS
Nonstop3h 31mMultiple Airlines
Deal found 8/12$194
This Booking.com deal was found by Cheapflights users on 8/12. 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.
jue. 9/48:40 pmTYS - PHX
1 stop5h 47mMultiple Airlines
dom. 9/144:19 pmPHX - TYS
Nonstop3h 31mMultiple Airlines
Deal found 8/12$201
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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.
dom. 8/176:00 amTYS - PHX
Nonstop4h 15mAllegiant Air
jue. 8/213:57 pmPHX - TYS
Nonstop3h 27mAllegiant Air
Deal found 8/12$205
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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.
jue. 9/252:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
dom. 9/284:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Deal found 8/12$206
This FlightHub deal was found by Cheapflights users on 8/14. 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.
jue. 11/67:17 pmTYS - PHX
1 stop7h 12mFrontier
dom. 11/97:30 amPHX - TYS
1 stop8h 52mFrontier
Deal found 8/14$216
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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.
jue. 10/92:23 pmTYS - PHX
Nonstop3h 59mAllegiant Air
dom. 10/124:12 pmPHX - TYS
Nonstop3h 30mAllegiant Air
Deal found 8/12$223
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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.
jue. 8/146:00 amTYS - PHX
Nonstop4h 15mAllegiant Air
dom. 8/178:05 amPHX - TYS
Nonstop3h 27mAllegiant Air
Deal found 8/12$224
This FlightHub deal was found by Cheapflights users on 8/12. 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.
jue. 8/281:52 pmTYS - PHX
Nonstop4h 15mMultiple Airlines
jue. 9/411:09 amPHX - TYS
1 stop5h 41mMultiple Airlines
Deal found 8/12$226

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 agosto 14, 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

jue. 9/4

2:33 pm-3:29 pm

Nonstop3h 56m

Phoenix Sky Harbor Intl

dom. 9/7

4:19 pm-10:50 pm

Nonstop3h 31m

$122

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

jue. 9/4

2:33 pm-3:29 pm

Nonstop3h 56m

Phoenix Sky Harbor Intl

dom. 9/14

4:19 pm-10:50 pm

Nonstop3h 31m

$129

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

jue. 8/28

1:52 pm-3:07 pm

Nonstop4h 15m

Phoenix Sky Harbor Intl

jue. 9/4

4:19 pm-10:50 pm

Nonstop3h 31m

$129

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

sáb. 10/18

12:45 pm-1:44 pm

Nonstop3h 59m

Phoenix Sky Harbor Intl

dom. 10/26

4:12 pm-10:42 pm

Nonstop3h 30m

$177

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

jue. 9/4

8:40 pm-11:27 pm

1 stop5h 47m

Phoenix Sky Harbor Intl

dom. 9/7

4:19 pm-10:50 pm

Nonstop3h 31m

$194

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

jue. 9/4

8:40 pm-11:27 pm

1 stop5h 47m

Phoenix Sky Harbor Intl

dom. 9/14

4:19 pm-10:50 pm

Nonstop3h 31m

$201

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

dom. 8/17

6:00 am-7:15 am

Nonstop4h 15m

Phoenix Sky Harbor Intl

jue. 8/21

3:57 pm-10:24 pm

Nonstop3h 27m

$205

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

jue. 9/25

2:33 pm-3:29 pm

Nonstop3h 56m

Phoenix Sky Harbor Intl

dom. 9/28

4:19 pm-10:50 pm

Nonstop3h 31m

$206

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

jue. 11/6

7:17 pm-12:29 am

1 stop7h 12m

Phoenix Sky Harbor Intl

dom. 11/9

7:30 am-6:22 pm

1 stop8h 52m

$216

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

jue. 10/9

2:23 pm-3:22 pm

Nonstop3h 59m

Phoenix Sky Harbor Intl

dom. 10/12

4:12 pm-10:42 pm

Nonstop3h 30m

$223

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 21 results
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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 August 8, 2025.

Booking 33 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, January is the cheapest month in which you can book a flight from Knoxville to Phoenix (average of $258). Flying from Knoxville to Phoenix 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 Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Knoxville to Phoenix in the morning. If you’re flexible enough to do this you can expect to save up to 29% 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 November 18, 2024.

Travelers seeking maximum savings on their Knoxville to Phoenix 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 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 agosto 14, 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
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
8,916 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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
3,217 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

7.9

Food

7.3

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 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.

  • 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 $114. Additional round-trip tickets that might be worth considering are offered by Delta and Frontier, with the lowest prices starting at $128 and $137, 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 flights from Knoxville to Phoenix?

    Looking at all options, your cheapest flight can be booked for $61. While the most popular route (Knoxville McGhee Tyson - Phoenix Sky Harbor Intl) can be booked for $122 on average our data indicates $151 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, January is the cheapest month in which you can book a flight from Knoxville to Phoenix (average of $258). Flying from Knoxville to Phoenix 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

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 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$114Average$228FlexibilityNo cancel feeOn-time88%
DeltaCheapest$128Average$429FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$137Average$282FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$228Average$536FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$252Average$488FlexibilityNo cancel feeOn-time71%

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