TYS - PHX

$97 Find Cheap Flights from Knoxville to Phoenix

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Phoenix departing on 1/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Phoenix Sky Harbor Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Phoenix, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Phoenix, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$122
Typical prices: $213-$399
Allegiant Air
Sun 1/25Thu 1/29
TYS - PHX • Non-stop
Cheapest one-way
$97
Typical prices: $198-$618
Frontier
Thu 1/8
TYS - PHX • 1 stop
When to book
8 weeks
in advance
Our data shows that travelers who book at least 8 weeks in advance save around 42% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 36% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Nonstop flights
3 days a week
There are direct flights from Knoxville to Phoenix 3 days a week: Thu, Sat, Sun.
Direct flights
Direct flights
Direct flights
Direct flights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Phoenix!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Knoxville to Phoenix (TYS-PHX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Phoenix that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Phoenix

Sun, Jan 25 - Thu, Jan 29
Allegiant Air Logo
10:00 am - 12:26 pm
TYS
-
PHX
4h 26mnonstop
Allegiant Air Logo
1:16 pm - 6:39 pm
PHX
-
TYS
3h 23mnonstop
$122Allegiant Air
Sun, Feb 8 - Thu, Feb 12
Allegiant Air Logo
10:00 am - 12:26 pm
TYS
-
PHX
4h 26mnonstop
Allegiant Air Logo
12:25 pm - 5:52 pm
PHX
-
TYS
3h 27mnonstop
$177Allegiant Air
Tue, Dec 23 - Tue, Dec 30
Frontier Logo
4:46 pm - 2:33 pm
TYS
-
PHX
23h 47m1 stop
Frontier Logo
7:00 am - 3:51 pm
PHX
-
TYS
6h 51m1 stop
$182Frontier
Thu, Jan 29 - Tue, Feb 3
Multiple Airlines Logo
10:00 am - 12:26 pm
TYS
-
PHX
4h 26mnonstop
Multiple Airlines Logo
3:06 pm - 8:39 am
PHX
-
TYS
39h 33m2 stops
$204Multiple Airlines
Sun, Jan 25 - Thu, Jan 29
Multiple Airlines Logo
10:00 am - 12:26 pm
TYS
-
PHX
4h 26mnonstop
Multiple Airlines Logo
1:20 pm - 3:30 pm
PHX
-
TYS
24h 10m1 stop
$207Multiple Airlines
Fri, Jan 23 - Sun, Jan 25
Multiple Airlines Logo
4:25 pm - 12:40 am
TYS
-
PHX
10h 15m1 stop
Multiple Airlines Logo
1:16 pm - 6:39 pm
PHX
-
TYS
3h 23mnonstop
$210Multiple Airlines
Sun, Jan 25 - Thu, Jan 29
Multiple Airlines Logo
1:39 pm - 12:40 am
TYS
-
PHX
37h 01m3 stops
Multiple Airlines Logo
1:16 pm - 6:39 pm
PHX
-
TYS
3h 23mnonstop
$211Multiple Airlines
Fri, Jan 23 - Sun, Jan 25
Multiple Airlines Logo
11:00 am - 3:03 pm
TYS
-
PHX
30h 03m2 stops
Multiple Airlines Logo
1:16 pm - 6:39 pm
PHX
-
TYS
3h 23mnonstop
$212Multiple Airlines
Sun, Jan 25 - Thu, Jan 29
Multiple Airlines Logo
1:39 pm - 11:09 pm
TYS
-
PHX
35h 30m2 stops
Multiple Airlines Logo
1:16 pm - 6:39 pm
PHX
-
TYS
3h 23mnonstop
$213Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Allegiant Air Logo
10:00 am - 12:26 pm
TYS
-
PHX
4h 26mnonstop
Allegiant Air Logo
1:16 pm - 6:39 pm
PHX
-
TYS
3h 23mnonstop
$217Allegiant Air
Booking Insights

KAYAK's insights & trends for Knoxville to Phoenix flights

Get data-powered insights and trends into flights from Knoxville to Phoenix to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Knoxville to Phoenix Sky Harbor Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Knoxville to Phoenix Sky Harbor Intl Airport departing in January.

What’s the cheapest day of the week to fly from Knoxville to Phoenix?

The average price of all round-trip flights from Knoxville to Phoenix Sky Harbor Intl Airport clicked on KAYAK for each day over the last 12 months.

For Knoxville to Phoenix, Friday is the cheapest day to fly on average and Monday is the most expensive. Flying from Phoenix back to Knoxville, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

What is the cheapest month to fly from Knoxville to Phoenix Sky Harbor Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Phoenix Sky Harbor Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Knoxville to Phoenix Sky Harbor Intl Airport is September, where tickets cost $205 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is $407 and $384 respectively.

Can I save money by flying with a layover from Knoxville to Phoenix Sky Harbor Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $319, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Knoxville to Phoenix Sky Harbor Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to Phoenix Sky Harbor Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Knoxville to Phoenix Sky Harbor Intl Airport, you should book around 8 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$97
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Knoxville to Phoenix

When to book flights from Knoxville to Phoenix

Are your dates flexible? Find out the best times to travel from Knoxville to Phoenix based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Knoxville to Phoenix flights

  • Which airline for those flying from Knoxville (TYS) to Phoenix (PHX) offer a carry-on policy to its passengers?

    Allegiant Air is one of the airlines flying from Knoxville to Phoenix that offers a carry-on policy to its passengers. It allows its travelers to come on board with one carry-on bag and one personal item with a weight limit of 25 lbs and they should fit in the overhead bin.

  • How can I easily get out of Phoenix International Airport (PHX) to my destination?

    After your arrival in Phoenix from Knoxville, you should consider using the PHX Sky Train as your mode of transportation from the airport to the city. It's located on level five. This is a safe and convenient means of transportation that will efficiently get you to your destination from the airport.

  • Which among the airlines flying from Knoxville (TYS) to Phoenix (PHX) is a pet-friendly airline?

    Frontier Airline allows you to fly from Knoxville to Phoenix in the company of your pet. If you need to travel from Knoxville to Phoenix with your favorite animal you should consider booking this airline. For the safety of your pet, it is supposed to remain in its container along the journey.

  • Which airline is suitable for booking when flying with kids from Knoxville to Phoenix?

    Delta Air Line is a suitable airline you can consider booking when you are flying from Knoxville to Phoenix in the company of your kids. It has spacious secure seats with seatbelts that makes it comfortable when flying with your child on your lap and in-flight entertainment appropriate for children of all ages.

  • What is the cheapest flight from Knoxville to Phoenix Sky Harbor Intl Airport?

    In the last 3 days, the lowest price for a flight from Knoxville to Phoenix Sky Harbor Intl Airport was $97 for a one-way ticket and $122 for a round-trip.

  • Do I need a passport to fly between Knoxville and Phoenix?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Knoxville to Phoenix?

    Only American Airlines offers inflight Wi-Fi service on the Knoxville to Phoenix flight route.

  • Which aircraft models fly most regularly from Knoxville to Phoenix?

    The Airbus A320-100/200 is the aircraft model that flies most regularly on the Knoxville to Phoenix flight route.

  • Which airline alliances offer flights from Knoxville to Phoenix?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Knoxville and Phoenix, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from Knoxville to Phoenix?

    You can catch a nonstop flight from Knoxville to Phoenix on Tuesday, Thursday, Saturday, and Sunday.

  • Which is the best airline for flights from Knoxville to Phoenix, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Phoenix are Delta and United Airlines. With an average price for the route of $343 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $491 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to Phoenix?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to Phoenix.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Phoenix?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to Phoenix?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phoenix with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and PHX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Phoenix?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phoenix from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Knoxville to Phoenix Sky Harbor Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $104 or less one-way and $223 or less round-trip.
  • McGhee Tyson Airport (TYS) and Phoenix Sky Harbor International Airport (PHX) are popularly considered as departure and arrival airport respectively for most of the flights flying from Knoxville to Phoenix.
  • When you are flying from Knoxville to Phoenix, you will decide whether to fly direct or have layovers along your way depending on which airline you book. Booking of Frontier Airline for your flight to Phoenix will allow you have one stop along your journey. Denver International Airport (DEN) will be your layover airport before reaching your destination.
  • For those travelers who have specific dietary needs and are planning to fly from Knoxville to Phoenix, they will have to book an airline that offers special diets to meet their dietary needs. When you book United Airlines, you will be served a special meal like Asian vegetarian or gluten-free by placing your order when making your reservation.
  • If you are located in Knoxville downtown and you want to reach the airport on time for your flight from Knoxville to Phoenix, you should consider taking a taxi. This is one of the fastest and most convenient ways of connecting from downtown to the airport. On the other hand you can also consider using a ride-sharing service as your means of transportation.
  • For those mobility impaired passengers who are looking forward to flying from Knoxville to Phoenix, they should consider booking an airline that offers wheelchair services to passengers in such condition. American Airlines is one of the airlines that offer the wheelchair services on request. Its on-board staff is always ready and willing to offer assistance when you need it.

Prefer to fly direct from Knoxville to Phoenix?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl.
Find which airlines fly direct from Knoxville McGhee Tyson Airport to Phoenix Sky Harbor Intl Airport, which days they fly and book direct flights.

Direct departures

Knoxville McGhee Tyson to Phoenix Sky Harbor Intl

Thursday

Allegiant Air

Allegiant Air

Saturday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Phoenix Sky Harbor Intl to Knoxville McGhee Tyson

Thursday

Allegiant Air

Allegiant Air

Saturday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 4 airlines serving from Knoxville to Phoenix

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Phoenix. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Phoenix? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8010 reviews
7.9Entertainment
8.1Boarding
7.3Food
7.9Comfort
8.5Crew
Airline reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

6.0 GoodJeff, Dec 2025
JFK - MIA
Read more Delta reviews

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

Everything was good The connects, with no blame to crew. Or pilots. I understand they are short staffed. Everything went well for me. I'll be using you guys again in May if not sooner.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Terrible. Our luggage was delayed and couldn’t be delivered for several days. We got bad information from the airline agents at baggage claim. We had to pick up our car so we wouldn’t be charged for an extra day. We got lost in the maze of airport parking. The baggage claim agents didn’t offer us any compensation for our extra time and expense. We are tired, hungry and very frustrated.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

After a two hour delay, my flight was CANCELLED! No pilot available. Such BS.

I miss the screens they used to have for the long flights. I use a Kendal and it doesn’t work well with there WiFi. I tried my cell and the wifi was not good for it either this is the free wifi.

Update departure times in a more timely manner. We are not boarding on time if the plane isn’t arriving until after our scheduled departure time.

Very friendly and efficient and smooth boarding. We were even way early arriving at my destination. Thank you.

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

The plane had originated in Las Vegas at 6:30 in the morning and flew to Moline where we boarded. The flight left around 12:30 PM and there were no boxed snacks available and many of the alcoholic beverages were unavailable. I would find it hard to believe that that many of the passengers coming from Las Vegas at 6:30 in the morning, drank and ate that much of the items. I can only come to the conclusion that someone failed to stock the plane for the round-trip. This is a huge revenue failure for the airline and disappointment for the passengers. The flight crew did not seem happy to be there and did not engage with passengers. Allegiant you can do better.

Everything you need to know for your flight from Knoxville to Phoenix

Information on your arrival and departure airports