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$89+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Knoxville McGhee Tyson are usually found in January or February, booked 78 days in advance, depart on a Friday or Monday and return on a Tuesday

Cheap 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 September 17, 2025.

Round-trip from

$180
(Cheapflightsfares)

One-way from

$89
(Trip.com)

Popular in

March

Cheapest in

January

Average price

$346
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, 3% potential price rise
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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 September 2025
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Find 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 September 17, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 9/15$180
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:07 pmPHX - TYS
1 stop20h 11mFrontier
Fri 10/108:17 pmTYS - PHX
2 stops19h 06mFrontier
Deal found 9/14$208
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:49 amPHX - TYS
Nonstop3h 30mMultiple Airlines
Sun 10/267:00 amTYS - PHX
1 stop27h 59mMultiple Airlines
Deal found 9/14$223
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 11/139:34 amPHX - TYS
1 stop6h 48mMultiple Airlines
Sun 11/167:00 amTYS - PHX
1 stop27h 24mMultiple Airlines
Deal found 9/15$226
This Booking.com deal was found by Cheapflights users on 9/16. 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.
Mon 10/611:49 amPHX - TYS
Nonstop3h 30mAllegiant Air
Sun 10/192:23 pmTYS - PHX
Nonstop3h 59mAllegiant Air
Deal found 9/16$233
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:14 pmPHX - TYS
1 stop18h 19mMultiple Airlines
Sun 10/265:34 pmTYS - PHX
2 stops17h 25mMultiple Airlines
Deal found 9/14$246
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2512:35 pmPHX - TYS
1 stop7h 15mUnited Airlines
Sat 11/18:26 amTYS - PHX
1 stop7h 42mUnited Airlines
Deal found 9/15$251
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 10/24:12 pmPHX - TYS
Nonstop3h 30mAllegiant Air
Thu 10/92:23 pmTYS - PHX
Nonstop3h 59mAllegiant Air
Deal found 9/15$253
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 9/214:19 pmPHX - TYS
Nonstop3h 31mMultiple Airlines
Thu 9/257:00 amTYS - PHX
1 stop27h 32mMultiple Airlines
Deal found 9/16$256
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Mon 10/611:49 amPHX - TYS
Nonstop3h 30mMultiple Airlines
Sun 10/195:34 pmTYS - PHX
2 stops45h 32mMultiple Airlines
Deal found 9/16$257

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 September 17, 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

Tue 10/14

9:00 am-7:52 pm

1 stop7h 52m

Knoxville McGhee Tyson

Tue 10/21

5:20 pm-9:15 pm

1 stop6h 55m

$251

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Fri 10/17

8:02 am-2:28 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Mon 10/20

10:00 am-10:59 am

Nonstop3h 59m

$307

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 12/4

4:56 pm-10:22 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Sun 12/7

4:47 pm-9:06 pm

1 stop6h 19m

$308

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 10/30

7:36 pm-12:18 pm

2 stops13h 42m

Knoxville McGhee Tyson

Sat 11/1

4:12 pm-10:53 am

1 stop21h 41m

$327

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 10/25

10:45 am-7:52 pm

1 stop6h 07m

Knoxville McGhee Tyson

Sat 11/1

10:50 am-2:58 pm

1 stop7h 08m

$341

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Fri 11/7

12:45 pm-10:55 pm

1 stop8h 10m

Knoxville McGhee Tyson

Sun 11/9

8:05 pm-12:08 am

1 stop6h 03m

$344

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Fri 11/14

6:00 am-2:46 pm

1 stop6h 46m

Knoxville McGhee Tyson

Sat 11/15

8:45 am-1:16 pm

1 stop6h 31m

$348

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 11/8

12:55 pm-11:59 pm

2 stops9h 04m

Knoxville McGhee Tyson

Tue 11/11

8:26 am-9:30 pm

2 stops15h 04m

$351

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 10/25

8:19 pm-10:05 am

2 stops10h 46m

Knoxville McGhee Tyson

Sat 11/8

5:45 am-3:26 pm

2 stops11h 41m

$351

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 11/13

9:34 am-6:22 pm

1 stop6h 48m

$98

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 18 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 September 12, 2025.

Booking 78 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, January is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $295). Flying from Phoenix to Knoxville in March is currently the most expensive (average of $376). 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 September 17, 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 57% versus a flight in the evening.

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 Friday afternoons 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 September 17, 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
8.0
Very good
7,961 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
7,961 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
699 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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
3,173 reviews
Delta
8.0
Very good
7,961 reviews

Overall

8.0

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Entertainment

7.9

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 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 $307, United Airlines can have you in Knoxville from Phoenix in 3h 26m. 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 $108 on this airline. Additional options worth looking into are Allegiant Air and United Airlines, starting at $114 and $250 round-trip. Frontier is 63% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Phoenix to Knoxville?

    While on average a flight from Phoenix to Knoxville is generally $180, our data shows the cheapest flight currently is $67. When looking at the most popular route, (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson), you can expect to pay $180 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, January is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $295). Flying from Phoenix to Knoxville in March is currently the most expensive (average of $376). 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
Morristown
Cherokee
Corbin
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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$255FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$114Average$216FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$250Average$463FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$258Average$443FlexibilityNo cancel feeOn-time71%
DeltaCheapest$269Average$345FlexibilityNo cancel feeOn-timeN/A

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