TYS - PHX

$92 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 9/6. 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
$145
Typical prices: $269-$126
Allegiant Air
Sun 8/16Thu 8/20
TYS - PHX • Non-stop
Cheapest non-stop
$245
Typical prices: $256-$137
Allegiant Air
Thu 6/11Sun 6/21
TYS - PHX • Non-stop
Nonstop flights
Thu, Sun
You can fly direct with Allegiant Air. Average duration is 4h 08m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from $145 (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 $320 (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 6 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 32% price drop
Most popular
Good to know
Good to know
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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, Aug 16 - 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
$145Allegiant Air
Sun, Aug 16 - Thu, Aug 27
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
$157Allegiant Air
Thu, Aug 20 - Sun, Aug 23
Allegiant Air Logo
2:39 pm - 3:26 pm
TYS
-
PHX
3h 47mnonstop
Allegiant Air Logo
4:16 pm - 10:52 pm
PHX
-
TYS
3h 36mnonstop
$166Allegiant Air
Thu, Oct 1 - Mon, Oct 5
Allegiant Air Logo
6:00 am - 7:01 am
TYS
-
PHX
4h 01mnonstop
Allegiant Air Logo
8:31 am - 2:58 pm
PHX
-
TYS
3h 27mnonstop
$206Allegiant Air
Fri, Aug 21 - Sun, Aug 23
Multiple Airlines Logo
8:32 pm - 10:02 am
TYS
-
PHX
16h 30m
1 stop
Multiple Airlines Logo
4:16 pm - 10:52 pm
PHX
-
TYS
3h 36mnonstop
$236Multiple Airlines
Fri, Jun 5 - Mon, Jun 8
Frontier Logo
8:32 pm - 7:44 am
TYS
-
PHX
14h 12m
1 stop
Frontier Logo
5:15 am - 7:33 pm
PHX
-
TYS
11h 18m
1 stop
$241Frontier
Thu, Aug 20 - Sun, Aug 23
Multiple Airlines Logo
2:39 pm - 3:26 pm
TYS
-
PHX
3h 47mnonstop
Multiple Airlines Logo
4:09 pm - 7:37 pm
PHX
-
TYS
24h 28m
1 stop
$244Multiple Airlines
Thu, Jun 11 - Sun, Jun 21
Allegiant Air Logo
2:42 pm - 3:30 pm
TYS
-
PHX
3h 48mnonstop
Allegiant Air Logo
4:20 pm - 10:52 pm
PHX
-
TYS
3h 32mnonstop
$245Allegiant Air
Sun, Aug 16 - Thu, Aug 27
Multiple Airlines Logo
7:00 am - 9:28 pm
TYS
-
PHX
17h 28m
1 stop
Multiple Airlines Logo
4:16 pm - 10:52 pm
PHX
-
TYS
3h 36mnonstop
$246Multiple Airlines
Fri, Jul 3 - Sun, Jul 5
Multiple Airlines Logo
12:40 pm - 10:20 pm
TYS
-
PHX
12h 40m
2 stops
Multiple Airlines Logo
4:20 pm - 10:56 pm
PHX
-
TYS
3h 36mnonstop
$248Multiple Airlines
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 August.

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 Tuesday 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 August, where tickets cost $208 (return) on average. On the other hand, the most expensive months are November and May, where the average cost of round-trip tickets is $405 and $383 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 $398, 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 6 weeks before departure, which saves you about 27% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonAugust
Cheapest flight$92
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly and prices are also 19% 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 $92 for a one-way ticket and $145 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 $380 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 $440 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 $121 or less one-way and $237 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 8466 reviews
8.5Crew
7.8Entertainment
8.1Boarding
7.9Comfort
7.2Food
Airline reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

4.0 OkayBradley, Apr 2026
RDU - ATL
Read more Delta reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

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.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

The seats need better cushioning for a nearly 5-hour flight, it was a bit uncomfortable. I'm glad American has free wi-fi but there were was a bout 30 minutes in the middle of the flight when there was no connection which was frustrating.

My original flight got delayed day of so I had to rebook it from one layover to two layovers. The flight also left earlier which was a slight inconvenience but manageable. Then my first connection flight got delayed 3 separate times for a total of 2 hours delayed, causing me to miss my second connection flight back to Santa Barbara. Now, because of this missed flight, I am missing my college classes that I pay for.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

On time flight, good communication about boarding, lines didn't form unnecessarily for boarding before their group was announced (kept aisles clear), friendly flight attendants and service

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

I didn't go from Reno to Phoenix I ended up going from Reno to Dallas to Tucson because my flight rebooked because my Amtrak was late I tried notifying you guys I also don't know what you ask me about my flight because you guys didn't book my flight

The flight attendant was friendly and efficient. The temperature was kept nice and cool. The plane was nice, but filthy. There were visible spills on my tray table. The gate agent was somewhat rude with her announcements and in speaking with other customers.

Great experience. Good dinner and service. FA's were very nice and attentive.

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

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

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

Information on your arrival and departure airports