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$64+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 47 days in advance, depart on a Monday or Sunday 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 August 18, 2025.

Round-trip from

$102
(Mytrip)

One-way from

$71
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$288
From Phoenix to Knoxville McGhee Tyson
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One-way flight from Phoenix to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 5% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($15 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 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 August 18, 2025.

This Mytrip deal was found by Cheapflights users on 8/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Thu 9/112:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Deal found 8/15$102
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Thu 9/44:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Thu 9/252:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Deal found 8/17$130
This Mytrip deal was found by Cheapflights users on 8/17. 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.
Sun 8/243:57 pmPHX - TYS
Nonstop3h 27mAllegiant Air
Thu 9/42:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Deal found 8/17$137
This Booking.com deal was found by Cheapflights users on 8/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Sun 9/72:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Deal found 8/15$141
This Cheapflightsfares deal was found by Cheapflights users on 8/15. 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.
Sun 9/214:19 pmPHX - TYS
Nonstop3h 31mAllegiant Air
Thu 9/252:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Deal found 8/15$144
This Priceline deal was found by Cheapflights users on 8/17. 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.
Thu 9/46:32 amPHX - TYS
1 stop10h 18mFrontier
Thu 9/258:40 pmTYS - PHX
1 stop5h 47mFrontier
Deal found 8/17$152
This FlightHub deal was found by Cheapflights users on 8/17. 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.
Mon 9/159:02 amPHX - TYS
1 stop7h 43mFrontier
Thu 9/188:40 pmTYS - PHX
1 stop5h 47mFrontier
Deal found 8/17$168
This Mytrip deal was found by Cheapflights users on 8/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/313:57 pmPHX - TYS
Nonstop3h 27mAllegiant Air
Sun 9/72:33 pmTYS - PHX
Nonstop3h 56mAllegiant Air
Deal found 8/16$169
This Priceline deal was found by Cheapflights users on 8/16. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:05 amPHX - TYS
1 stop7h 40mFrontier
Mon 9/298:35 pmTYS - PHX
1 stop6h 22mFrontier
Deal found 8/16$172
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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.
Mon 10/1311:49 amPHX - TYS
Nonstop3h 30mAllegiant Air
Fri 10/176:20 amTYS - PHX
Nonstop3h 57mAllegiant Air
Deal found 8/17$173
This Priceline deal was found by Cheapflights users on 8/17. 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.
Sun 8/247:09 amPHX - TYS
1 stop9h 32mFrontier
Thu 9/48:40 pmTYS - PHX
1 stop5h 47mFrontier
Deal found 8/17$174

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 August 18, 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 9/4

4:19 pm-10:50 pm

Nonstop3h 31m

Knoxville McGhee Tyson

Thu 9/11

2:33 pm-3:29 pm

Nonstop3h 56m

$102

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 9/4

4:19 pm-10:50 pm

Nonstop3h 31m

Knoxville McGhee Tyson

Thu 9/25

2:33 pm-3:29 pm

Nonstop3h 56m

$130

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 8/24

3:57 pm-10:24 pm

Nonstop3h 27m

Knoxville McGhee Tyson

Thu 9/4

2:33 pm-3:29 pm

Nonstop3h 56m

$137

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 9/4

4:19 pm-10:50 pm

Nonstop3h 31m

Knoxville McGhee Tyson

Sun 9/7

2:33 pm-3:29 pm

Nonstop3h 56m

$141

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 9/21

4:19 pm-10:50 pm

Nonstop3h 31m

Knoxville McGhee Tyson

Thu 9/25

2:33 pm-3:29 pm

Nonstop3h 56m

$144

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 9/4

6:32 am-7:50 pm

1 stop10h 18m

Knoxville McGhee Tyson

Thu 9/25

8:40 pm-11:27 pm

1 stop5h 47m

$152

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 9/4

11:09 am-7:50 pm

1 stop5h 41m

Knoxville McGhee Tyson

Thu 9/11

8:40 pm-11:27 pm

1 stop5h 47m

$152

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Mon 9/15

9:02 am-7:45 pm

1 stop7h 43m

Knoxville McGhee Tyson

Thu 9/18

8:40 pm-11:27 pm

1 stop5h 47m

$168

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 8/31

3:57 pm-10:24 pm

Nonstop3h 27m

Knoxville McGhee Tyson

Sun 9/7

2:33 pm-3:29 pm

Nonstop3h 56m

$169

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 8/24

3:57 pm-10:24 pm

Nonstop3h 27m

$64

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 17 results
1
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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 August 8, 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, January is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $294). 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 August 18, 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 Tuesday mornings 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 August 18, 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
7,981 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

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
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

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
8,925 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

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
7,981 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

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
701 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

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
3,212 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

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.

  • 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 American Airlines, starting at $113 and $261 round-trip. Frontier is 69% 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 $128, our data shows the cheapest flight currently is $64. When looking at the most popular route, (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson), you can expect to pay $130 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 $294). 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

Browse thousands of different options on Cheapflights for your next trip

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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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$96Average$260FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$113Average$216FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$261Average$454FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$263Average$465FlexibilityNo cancel feeOn-time69%
DeltaCheapest$269Average$355FlexibilityNo cancel feeOn-timeN/A

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