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Cheap flights from Phoenix Sky Harbor Intl Airport to Knoxville from $81

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phoenix Sky Harbor Intl Airport to Knoxville departing on 7/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Phoenix Sky Harbor Intl Airport to Knoxville

Cheap round-trip flights

Allegiant Air Logo
7:39 am - 2:11 pmPHX-TYS
3h 32mnonstop
Allegiant Air Logo
1:52 pm - 3:07 pmTYS-PHX
4h 15mnonstop
$98Allegiant Air
Find Deal
Thu, Aug 7 - Sun, Aug 24
Allegiant Air Logo
7:39 am - 2:11 pmPHX-TYS
3h 32mnonstop
Allegiant Air Logo
1:52 pm - 3:07 pmTYS-PHX
4h 15mnonstop
$136Allegiant Air
Find Deal
Thu, Aug 7 - Sun, Aug 24
American Airlines Logo
5:00 am - 1:37 pmPHX-TYS
5h 37m1 stop
American Airlines Logo
6:24 pm - 10:25 pmTYS-PHX
6h 01m1 stop
$251American Airlines
Find Deal
Sat, Oct 25 - Sat, Nov 8
American Airlines Logo
12:57 am - 12:34 pmPHX-TYS
8h 37m1 stop
American Airlines Logo
11:11 am - 3:50 pmTYS-PHX
7h 39m1 stop
$270American Airlines
Find Deal
Thu, Jul 24 - Sat, Aug 2
United Airlines Logo
12:40 pm - 10:35 pmPHX-TYS
6h 55m1 stop
United Airlines Logo
4:40 pm - 9:57 pmTYS-PHX
8h 17m1 stop
$283United Airlines
Find Deal
Wed, Sep 24 - Mon, Sep 29
Frontier Logo
11:09 am - 7:41 pmPHX-TYS
5h 32m1 stop
Frontier Logo
8:22 pm - 11:29 pmTYS-PHX
6h 07m1 stop
$298Frontier
Find Deal
Thu, Oct 2 - Thu, Oct 9
Frontier Logo
11:09 am - 7:41 pmPHX-TYS
5h 32m1 stop
Frontier Logo
8:22 pm - 11:29 pmTYS-PHX
6h 07m1 stop
$302Frontier
Find Deal
Thu, Oct 2 - Thu, Oct 9
United Airlines Logo
8:55 am - 6:10 pmPHX-TYS
6h 15m1 stop
United Airlines Logo
7:00 am - 12:28 pmTYS-PHX
8h 28m2 stops
$326United Airlines
Find Deal
Sat, Aug 30 - Thu, Sep 4
Delta Logo
11:09 pm - 10:14 amPHX-TYS
8h 05m1 stop
Delta Logo
6:42 am - 10:35 amTYS-PHX
6h 53m1 stop
$354Delta
Find Deal
Thu, Jul 17 - Fri, Jul 25
Delta Logo
3:55 pm - 11:46 pmPHX-TYS
5h 51m1 stop
Delta Logo
6:05 pm - 11:59 pmTYS-PHX
7h 54m1 stop
$484Delta
Find Deal
Tue, Nov 25 - Sat, Nov 29

United Airlines flights from Phoenix Sky Harbor Intl Airport to Knoxville

Our best United Airlines deals on Phoenix Sky Harbor Intl Airport to Knoxville flight tickets
United Airlines
Sep 24
PHX12:40 pmPhoenix Sky Harbor Intl
6h 55m
1 stop
TYS10:35 pmKnoxville McGhee Tyson
Sep 29
TYS4:40 pmKnoxville McGhee Tyson
8h 17m
1 stop
PHX9:57 pmPhoenix Sky Harbor Intl
United Airlines
Aug 30
PHX8:55 amPhoenix Sky Harbor Intl
6h 15m
1 stop
TYS6:10 pmKnoxville McGhee Tyson
Sep 4
TYS7:00 amKnoxville McGhee Tyson
8h 28m
2 stops
PHX12:28 pmPhoenix Sky Harbor Intl
United Airlines
Oct 25
PHX12:16 pmPhoenix Sky Harbor Intl
8h 27m
1 stop
TYS11:43 pmKnoxville McGhee Tyson
Nov 8
TYS10:35 amKnoxville McGhee Tyson
9h 21m
2 stops
PHX5:56 pmPhoenix Sky Harbor Intl

American Airlines flights from Phoenix Sky Harbor Intl Airport to Knoxville

Our best American Airlines deals on Phoenix Sky Harbor Intl Airport to Knoxville flight tickets
American Airlines
Oct 25
PHX5:00 amPhoenix Sky Harbor Intl
5h 37m
1 stop
TYS1:37 pmKnoxville McGhee Tyson
Nov 8
TYS6:24 pmKnoxville McGhee Tyson
6h 01m
1 stop
PHX10:25 pmPhoenix Sky Harbor Intl
American Airlines
Jul 24
PHX12:57 amPhoenix Sky Harbor Intl
8h 37m
1 stop
TYS12:34 pmKnoxville McGhee Tyson
Aug 2
TYS11:11 amKnoxville McGhee Tyson
7h 39m
1 stop
PHX3:50 pmPhoenix Sky Harbor Intl
American Airlines
Aug 20
PHX12:24 amPhoenix Sky Harbor Intl
9h 02m
1 stop
TYS12:26 pmKnoxville McGhee Tyson
Aug 24
TYS6:39 pmKnoxville McGhee Tyson
7h 31m
1 stop
PHX11:10 pmPhoenix Sky Harbor Intl

See travel insights to Knoxville from

How to get the cheapest flight ticket from Phoenix Sky Harbor Intl Airport to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Knoxville?

The month of January is, on average, the cheapest month to fly to Knoxville from Phoenix Sky Harbor Intl Airport, with most prices found around $194. If you aren’t able to travel during the month of January, then book flights to Knoxville from Phoenix Sky Harbor Intl Airport during November instead. Flights to Knoxville in November, while not as cheap as those in January, still average around $266.

What is the cheapest day to depart on your flight to Knoxville?

The cheapest day to depart from Phoenix Sky Harbor Intl Airport to Knoxville is on a Tuesday. Travelers who choose to depart for Knoxville on a Tuesday will often find tickets for as low as $171. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Phoenix Sky Harbor Intl Airport to Knoxville for around $323.

What is the cheapest time of day to depart on your flight to Knoxville?

At noon is the cheapest time of day to fly from Phoenix Sky Harbor Intl Airport to Knoxville when you can find flight prices for as low as $195. Flying to Knoxville at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the evening when prices are around $452.

What is the cheapest Phoenix Sky Harbor Intl to Knoxville McGhee Tyson flight route?

Fly from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson for the best Phoenix Sky Harbor Intl - Knoxville McGhee Tyson flight prices

How far in advance should I book a flight to Knoxville?

You are more likely to see cheaper flights to Knoxville from Phoenix Sky Harbor Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $317 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Phoenix Sky Harbor Intl Airport for as low as $266 on momondo.

What cabin class options are available on Phoenix Sky Harbor Intl to Knoxville McGhee Tyson flights?

There are 1 cabin classes available to choose from on Phoenix Sky Harbor Intl to Knoxville McGhee Tyson flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Phoenix Sky Harbor Intl Airport to Knoxville flight prices changed over time?

As of June 2025, prices for Phoenix Sky Harbor Intl Airport to Knoxville flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from Phoenix Sky Harbor Intl Airport to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from Phoenix Sky Harbor Intl Airport to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Phoenix Sky Harbor Intl Airport to Knoxville (PHX to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phoenix Sky Harbor Intl Airport to Knoxville

Best Price Found

$81

Fastest flight time

3h 20m

Direct flights

Mon, Wed and Fri

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Phoenix Sky Harbor Intl Airport in the past 72 hours is $81. The best round-trip flight deal from Phoenix Sky Harbor Intl Airport to Knoxville found on momondo in the last 72 hours is $98.
The fastest flight from Phoenix Sky Harbor Intl Airport to Knoxville takes 3h 20m
Direct flights go from Phoenix Sky Harbor Intl Airport to Knoxville on Monday, Wednesday and Friday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)

  • How far is Phoenix Sky Harbor Intl to Knoxville McGhee Tyson by plane?

    A flight from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson will travel around 1597.8 mi. Typically, this will take 3h 20m by plane in normal conditions.

  • When did momondo last update prices for flights from Phoenix Sky Harbor Intl Airport to Knoxville McGhee Tyson Airport?

    Prices for flights from Phoenix Sky Harbor Intl Airport to Knoxville McGhee Tyson Airport are updated daily.

  • How many operators does momondo search for flights from Phoenix Sky Harbor Intl Airport to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Phoenix Sky Harbor Intl Airport to Knoxville McGhee Tyson Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Phoenix Sky Harbor Intl Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents required for your trip to Knoxville McGhee Tyson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Knoxville McGhee Tyson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Phoenix Sky Harbor Intl Airport to Knoxville?

  • What is the most popular airline from Phoenix Sky Harbor Intl Airport to Knoxville?


Best airlines flying from Phoenix Sky Harbor Intl Airport to Knoxville

Compare and see reviews for airlines that fly from Phoenix Sky Harbor Intl Airport to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
5.9
3,296 reviews
Search Frontier flights
Allegiant AirPriceFrom $113Free CancellationRating
7.2
714 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $263Free CancellationRating
7.4
8,840 reviews
Search United Airlines flights
DeltaPriceFrom $272Free CancellationRating
8.0
7,965 reviews
Search Delta flights
American AirlinesPriceFrom $277Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Crossville
Murphy
Maryville
Newport
Alcoa
Oak Ridge
Lenoir City
Kodak
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

Why should I use momondo to find a flight deal from Phoenix to Knoxville?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Phoenix to Knoxville. momondo saves you time and could save you money on your trip.

Can I find flights from Phoenix to Knoxville with flexible booking policies on momondo?

momondo does allow users to show only those flights to Knoxville from Phoenix which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Phoenix to Knoxville?

momondo provides multiple filters to help you find the best flight to Knoxville from Phoenix. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Phoenix to Knoxville right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Knoxville from Phoenix. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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1 adult
Mon 6/30
Mon 7/7

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