TYS - PHX

$71 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 4/12. 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
$195
Overall average: $343
Allegiant Air
Sun 4/12Thu 4/30
TYS - PHX • Non-stop
Cheapest one-way
$71
Typical prices: $104-$183
Allegiant Air
Sun 4/12
TYS - PHX • Non-stop
Nonstop flights
Thu, Sun
You can fly direct with Allegiant Air. Average duration is 4h 11m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $195 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg $307 (round-trip)
Shortest trip • 6h 18m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 34% price drop
Most popular
Good to know
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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, Apr 12 - Thu, Apr 30
Allegiant Air Logo
8:00 am - 9:06 am
TYS
-
PHX
4h 06mnonstop
Allegiant Air Logo
9:56 am - 4:20 pm
PHX
-
TYS
3h 24mnonstop
$195Allegiant Air
Sun, Apr 12 - Thu, Apr 30
Allegiant Air Logo
8:00 am - 9:06 am
TYS
-
PHX
4h 06mnonstop
Allegiant Air Logo
9:56 am - 4:20 pm
PHX
-
TYS
3h 24mnonstop
$196Allegiant Air
Sun, Apr 26 - Sun, May 3
Allegiant Air Logo
8:00 am - 9:06 am
TYS
-
PHX
4h 06mnonstop
Allegiant Air Logo
9:56 am - 4:20 pm
PHX
-
TYS
3h 24mnonstop
$198Allegiant Air
Sun, Apr 26 - Sun, May 3
Allegiant Air Logo
8:00 am - 9:06 am
TYS
-
PHX
4h 06mnonstop
Allegiant Air Logo
9:56 am - 4:20 pm
PHX
-
TYS
3h 24mnonstop
$202Allegiant Air
Thu, Aug 13 - Thu, Aug 20
Allegiant Air Logo
2:51 pm - 4:01 pm
TYS
-
PHX
4h 10mnonstop
Allegiant Air Logo
4:16 pm - 10:52 pm
PHX
-
TYS
3h 36mnonstop
$212Allegiant Air
Thu, May 7 - Sat, May 9
Multiple Airlines Logo
8:00 am - 9:06 am
TYS
-
PHX
4h 06mnonstop
Multiple Airlines Logo
9:24 pm - 3:33 pm
PHX
-
TYS
15h 09m
1 stop
$214Multiple Airlines
Sun, Apr 12 - Thu, Apr 30
Allegiant Air Logo
8:00 am - 9:06 am
TYS
-
PHX
4h 06mnonstop
Allegiant Air Logo
9:56 am - 4:20 pm
PHX
-
TYS
3h 24mnonstop
$216Allegiant Air
Thu, May 7 - Sat, May 9
Frontier Logo
4:28 pm - 7:36 am
TYS
-
PHX
18h 08m
1 stop
Frontier Logo
9:24 pm - 3:33 pm
PHX
-
TYS
15h 09m
1 stop
$221Frontier
Sun, Apr 12 - Wed, Apr 15
Multiple Airlines Logo
8:00 am - 9:06 am
TYS
-
PHX
4h 06mnonstop
Multiple Airlines Logo
12:58 pm - 3:41 pm
PHX
-
TYS
23h 43m
2 stops
$225Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
Allegiant Air Logo
8:00 am - 9:06 am
TYS
-
PHX
4h 06mnonstop
Allegiant Air Logo
9:56 am - 4:20 pm
PHX
-
TYS
3h 24mnonstop
$228Allegiant 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.

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 Saturday 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 June, 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 $328, 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 4 weeks before departure, which saves you about 28% 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$71
Best time to beat the crowds with an average 27% drop in price.
Most popular time to fly and prices are also 22% 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 $71 for a one-way ticket and $195 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 Thursday, 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 $326 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 $433 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 $79 or less one-way and $254 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

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Phoenix Sky Harbor Intl to Knoxville McGhee Tyson

Thursday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 5 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 8291 reviews
7.9Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

4.0 OkayJeffrey, Mar 2026
CMH - DTW
Read more Delta reviews

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

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 like that the flight attendant was very attentive and helpful. The meal menu could have more of an variety of food choices.

The flight was fine, once we got underway. It was more than hour delayed

Arrived 40 min early which was great - sat in runway for 35 min so no gain. Then waited for luggage 45 min. They need to staff accordingly knowing its one of the busiest week in Phx

My flight got rerouted due to crew rest. I was sent to Dallas customer service was not very polite. Was given a $40 room voucher for Motel 6 and $12 to eat with. It delayed me by a day. Where if I would have just stuck with my original flight Arizona was delayed to Cleveland and I could have made it home. They put me on a 9:00 flight out of Dallas to Cleveland without my knowledge or consent. When originally I was told it would be 8:45 a.m. on February 1st. I told them I could not take the 9:00 flight because I did not have anybody to pick me up from the airport at that time. I'm extremely disappointed in how I was treated. And I will not fly American Airlines again.

It would be nice to have some low carb options in the snacks.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

I love American. I’ll never fly anyone else if I can help it.

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

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

Information on your arrival and departure airports