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$38+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
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 47 days in advance, depart on a Wednesday or Friday and return on a Thursday

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 December 5, 2025.

This Booking.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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/114:56 pmPHX - TYS
Nonstop3h 26mAllegiant Air
Sun 12/142:01 pmTYS - PHX
Nonstop4h 05mAllegiant Air
Deal found 12/3$207
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 12/114:30 pmPHX - TYS
1 stop24h 44mMultiple Airlines
Sun 12/146:30 amTYS - PHX
1 stop27h 36mMultiple Airlines
Deal found 12/3$215
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.
Thu 12/184:56 pmPHX - TYS
Nonstop3h 26mAllegiant Air
Tue 12/2312:21 pmTYS - PHX
Nonstop4h 05mAllegiant Air
Deal found 12/2$260
This Cheapflightsfares 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 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 12/3$299
This Frontier 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 Frontier 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 12/2$313
This Frontier 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 Frontier 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 stop9h 52mFrontier
Deal found 12/3$338
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.
Tue 12/239:36 amPHX - TYS
2 stops51h 55mMultiple Airlines
Sun 1/42:01 pmTYS - PHX
Nonstop4h 05mMultiple Airlines
Deal found 12/4$340
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.
Wed 12/177:00 amPHX - TYS
1 stop28h 11mMultiple Airlines
Sat 12/208:30 amTYS - PHX
1 stop28h 23mMultiple Airlines
Deal found 12/3$344
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:16 pmPHX - TYS
Nonstop3h 26mAllegiant Air
Sun 1/42:01 pmTYS - PHX
Nonstop4h 05mAllegiant Air
Deal found 12/4$347

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 December 5, 2025.

Round-trip from

$116
(Booking.com)

One-way from

$38
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$304
From Phoenix to Knoxville McGhee Tyson
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One-way flight from Phoenix to Knoxville McGhee Tyson
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 5, 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 1/15

1:16 pm-6:39 pm

Nonstop3h 23m

Knoxville McGhee Tyson

Sun 1/18

10:00 am-12:26 pm

Nonstop4h 26m

$138

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 1/15

9:18 am-7:23 pm

1 stop8h 05m

Knoxville McGhee Tyson

Sun 1/18

10:00 am-12:26 pm

Nonstop4h 26m

$173

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 2/12

9:05 am-4:40 pm

1 stop5h 35m

Knoxville McGhee Tyson

Thu 2/19

5:35 pm-12:33 am

1 stop8h 58m

$203

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 2/12

12:25 pm-5:52 pm

Nonstop3h 27m

Knoxville McGhee Tyson

Thu 2/19

8:30 am-11:05 am

Nonstop4h 35m

$214

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 1/8

5:33 pm-4:50 pm

1 stop21h 17m

Knoxville McGhee Tyson

Thu 1/15

1:39 pm-11:36 pm

2 stops35h 57m

$236

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Mon 2/2

11:53 pm-9:24 am

1 stop7h 31m

Knoxville McGhee Tyson

Sat 2/7

5:40 am-12:29 pm

1 stop8h 49m

$237

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 2/5

12:45 pm-8:47 pm

1 stop6h 02m

Knoxville McGhee Tyson

Sat 2/7

5:40 am-12:29 pm

1 stop8h 49m

$237

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 2/5

12:45 pm-8:47 pm

1 stop6h 02m

Knoxville McGhee Tyson

Tue 2/10

5:40 am-12:29 pm

1 stop8h 49m

$237

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Tue 2/3

11:53 pm-9:24 am

1 stop7h 31m

Knoxville McGhee Tyson

Wed 2/11

5:00 pm-11:46 pm

1 stop8h 46m

$237

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Tue 2/3

1:55 pm-11:45 pm

1 stop7h 50m

Knoxville McGhee Tyson

Sat 2/7

5:40 am-10:30 am

1 stop6h 50m

$237

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 21 results
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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 28, 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 December 5, 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 at noon, which can drop the price by up to 69% 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 December 5, 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
8,010 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

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
8,010 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

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
9,065 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

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
7.2
Good
11,044 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

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
7.2
Good
698 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

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
5.8
Fair
3,092 reviews
Delta
7.9
Good
8,010 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Boarding

8.1

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 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 $138, Allegiant Air can have you in Knoxville from Phoenix in 3h 23m. 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 $111 and $170 round-trip. Frontier is 66% 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 $64. Users have also found prices from $92 and $114 on Frontier and United Airlines, respectively.

  • What are the cheapest flights from Phoenix to Knoxville?

    While on average a flight from Phoenix to Knoxville is generally $224, our data shows the cheapest flight currently is $111. When looking at the most popular route, (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson), you can expect to pay $116 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
Cherokee
Crossville
Morristown
Corbin
Bryson City
Alcoa
Oak Ridge
Murphy

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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 December 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$114Average$224FlexibilityNo cancel feeOn-time88%
FrontierCheapest$119Average$260FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$250Average$453FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$416FlexibilityNo cancel feeOn-time71%
DeltaCheapest$256Average$336FlexibilityNo cancel feeOn-timeN/A

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