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$92+ 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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Knoxville McGhee Tyson are usually found in February or January, booked 73 days in advance, depart on a Wednesday or Monday and return on a Friday

Cheap 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 March 22, 2026.

This Booking.com deal was found by Cheapflights users on 3/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Thu 5/282:49 pm
TYS
-
PHX
Nonstop4h 10m
Allegiant Air
Deal found 3/22$191
This Gotogate deal was found by Cheapflights users on 3/19. 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.
Thu 4/239:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Thu 4/308:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Deal found 3/19$208
This Booking.com deal was found by Cheapflights users on 3/19. 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 4/169:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Sun 4/198:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Deal found 3/19$214
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:16 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Sun 8/232:39 pm
TYS
-
PHX
Nonstop3h 47m
Allegiant Air
Deal found 3/22$227
This Booking.com 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/214:49 pm
PHX
-
TYS
Nonstop3h 27m
Allegiant Air
Thu 5/282:49 pm
TYS
-
PHX
Nonstop4h 10m
Allegiant Air
Deal found 3/21$233
This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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 4/99:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Sun 4/128:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Deal found 3/19$238
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:50 pm
PHX
-
TYS
1 stop23h 43m
Frontier
Mon 5/118:32 pm
TYS
-
PHX
1 stop16h 33m
Frontier
Deal found 3/22$241
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:16 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Thu 8/272:39 pm
TYS
-
PHX
Nonstop3h 47m
Allegiant Air
Deal found 3/21$244
This Frontier deal was found by Cheapflights users on 3/22. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/106:50 am
PHX
-
TYS
1 stop5h 38m
Frontier
Thu 4/164:28 pm
TYS
-
PHX
1 stop10h 14m
Frontier
Deal found 3/22$251
This Kiwi.com deal was found by Cheapflights users on 3/18. 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 11/54:30 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Sun 11/812:29 pm
TYS
-
PHX
Nonstop4h 01m
Allegiant Air
Deal found 3/18$256

Find 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 March 22, 2026.

Round-trip from

$191
(Booking.com)

One-way from

$92
(CheapOair)

Popular in

March

Cheapest in

February

Average price

$347
From Phoenix to Knoxville McGhee Tyson
Search Deals
One-way flight from Phoenix to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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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 March 22, 2026.
Use the filters below to find and compare flights from Phoenix to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 4/18

12:00 pm-11:41 pm

2 stops8h 41m

Knoxville McGhee Tyson

Sat 4/25

7:05 am-11:09 am

1 stop7h 04m

$334

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 4/18

5:30 am-6:30 pm

2 stops10h 00m

Knoxville McGhee Tyson

Sat 4/25

6:40 am-11:00 am

2 stops7h 20m

$339

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 8/8

12:20 pm-11:12 pm

1 stop7h 52m

Knoxville McGhee Tyson

Sat 8/15

10:46 am-3:02 pm

1 stop7h 16m

$399

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 8/20

8:50 pm-1:25 pm

2 stops13h 35m

Knoxville McGhee Tyson

Thu 8/27

2:05 pm-6:55 pm

1 stop7h 50m

$410
Quickest round-trip

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 4/15

12:48 pm-11:08 pm

1 stop7h 20m

Knoxville McGhee Tyson

Sat 4/18

5:15 pm-9:41 pm

1 stop7h 26m

$419

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 6/25

11:50 pm-9:33 am

1 stop6h 43m

Knoxville McGhee Tyson

Tue 6/30

10:00 am-4:35 pm

2 stops9h 35m

$424

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 5/2

1:50 pm-10:23 pm

1 stop5h 33m

Knoxville McGhee Tyson

Sat 5/9

9:50 am-8:19 pm

2 stops13h 29m

$472

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 8/20

9:00 am-8:48 pm

1 stop8h 48m

Knoxville McGhee Tyson

Mon 8/24

6:30 am-2:54 pm

2 stops11h 24m

$494
Cheapest one-way

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Fri 4/10

6:50 am-3:28 pm

1 stop5h 38m

$126
Quickest one-way

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 5/31

4:49 pm-11:16 pm

Nonstop3h 27m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 18 resultsSorted by cheapest first
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 March 13, 2026.

Booking 73 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 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.

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 March 22, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Phoenix to Knoxville as you normally would.

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 March 22, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAllegiant Air 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
8,314 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

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
8,314 reviews
Delta
7.9
Good
8,314 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

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
9,455 reviews
Delta
7.9
Good
8,314 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

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
711 reviews
Delta
7.9
Good
8,314 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

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
11,487 reviews
Delta
7.9
Good
8,314 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

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
3,019 reviews
Delta
7.9
Good
8,314 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.8

Comfort

7.9

Overall

7.9

Food

7.2

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 $334, United Airlines can have you in Knoxville from Phoenix in 8h 41m. The distance from Phoenix to Knoxville is about 1594 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Our cheapest airline available from Phoenix to Knoxville is Frontier. Our recent data shows that you can find tickets from as low as $96 on this airline. Additional options worth looking into are Allegiant Air and United Airlines, starting at $108 and $170 round-trip. Frontier is 67% cheaper than the average price of flights available within the next 90 days to this destination.

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

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $65. Users have also found prices from $92 and $125 on Frontier and American Airlines, respectively.

  • What are the cheapest flights from Phoenix to Knoxville?

    While on average a flight from Phoenix to Knoxville is generally $246, our data shows the cheapest flight currently is $118. When looking at the most popular route, (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson), you can expect to pay $215 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 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
Murphy
Oak Ridge

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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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$96Average$240FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$108Average$226FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$170Average$403FlexibilityNo cancel feeOn-time69%
DeltaCheapest$209Average$337FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$250Average$381FlexibilityNo cancel feeOn-time71%

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