PHX - TYS

$64 Find Cheap Flights from Phoenix to Knoxville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Knoxville departing on 8/17. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phoenix to Knoxville, 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 Phoenix to Knoxville, as well as popular online travel agencies
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Cheap Flights from Phoenix to Knoxville (PHX-TYS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phoenix to Knoxville 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 Phoenix to Knoxville

Sun, Aug 10 - Sun, Aug 17
Allegiant Air Logo
7:39 am - 2:11 pmPHX-TYS
3h 32mnonstop
Allegiant Air Logo
6:00 am - 7:15 amTYS-PHX
4h 15mnonstop
$95Allegiant Air
Find Deal
Sun, Aug 10 - 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
$102Allegiant Air
Find Deal
Fri, Oct 17 - Sun, Oct 26
Allegiant Air Logo
8:02 am - 2:28 pmPHX-TYS
3h 26mnonstop
Allegiant Air Logo
2:23 pm - 3:22 pmTYS-PHX
3h 59mnonstop
$108Allegiant Air
Find Deal
Sat, Oct 18 - Sun, Oct 26
Allegiant Air Logo
2:34 pm - 9:04 pmPHX-TYS
3h 30mnonstop
Allegiant Air Logo
2:23 pm - 3:22 pmTYS-PHX
3h 59mnonstop
$115Allegiant Air
Find Deal
Sat, Aug 16 - Thu, Aug 21
 Logo
8:21 pm - 4:29 pmPHX-TYS
17h 08m1 stop
 Logo
1:52 pm - 3:07 pmTYS-PHX
4h 15mnonstop
Sun, Aug 10 - Sun, Aug 17
 Logo
11:59 pm - 4:12 pmPHX-TYS
13h 13m1 stop
 Logo
6:00 am - 7:15 amTYS-PHX
4h 15mnonstop
Thu, Aug 21 - Sun, Aug 24
Frontier Logo
10:45 am - 7:41 pmPHX-TYS
5h 56m1 stop
Frontier Logo
8:33 pm - 11:24 pmTYS-PHX
5h 51m1 stop
$236Frontier
Find Deal
Wed, Sep 24 - Sun, Sep 28
Frontier Logo
12:39 pm - 7:50 pmPHX-TYS
28h 11m1 stop
Frontier Logo
5:08 pm - 10:14 amTYS-PHX
20h 06m1 stop
$245Frontier
Find Deal
Wed, Aug 27 - Wed, Sep 10
American Airlines Logo
6:40 am - 4:36 pmPHX-TYS
6h 56m1 stop
American Airlines Logo
2:08 pm - 7:15 pmTYS-PHX
8h 07m1 stop
$251American Airlines
Find Deal
Tue, Oct 21 - Tue, Oct 28
Delta Logo
12:05 pm - 11:07 pmPHX-TYS
8h 02m1 stop
Delta Logo
7:43 am - 2:01 pmTYS-PHX
9h 18m1 stop
$257Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Phoenix to Knoxville flights

Get data-powered insights and trends into flights from Phoenix to Knoxville 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 Phoenix to Knoxville?

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

If your flying dates are flexible, you should consider flying to Knoxville on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Wednesday is the most expensive day to fly from Phoenix to Knoxville. For your return ticket, we recommend flying on a Tuesday and avoiding Mondays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Knoxville, 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 Phoenix Sky Harbor Intl Airport to Knoxville is January, where tickets cost $194 (return) on average. On the other hand, the most expensive months are December and September, where the average cost of round-trip tickets is $471 and $369 respectively.

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

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 $288, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Phoenix Sky Harbor Intl Airport to Knoxville, 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 Phoenix Sky Harbor Intl Airport to Knoxville, you should book around 2 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$64
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Phoenix to Knoxville

When to book flights from Phoenix to Knoxville

Are your dates flexible? Find out the best times to travel from Phoenix to Knoxville 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 Phoenix to Knoxville flights

  • Which cities can I connect to after deplaning from my Phoenix to Knoxville flight at Knoxville McGhee Tyson (TYS)?

    Besides Knoxville, TYS is also the destination airport for travelers connecting to the neighboring cities. Among these cities are Maryville, Alcoa, and Farragut. With these cities being a comfortable driving distance away from TYS, you can conveniently connect to these cities via a car rental, a taxi, or a ride-share service.

  • Which family-friendly airline should I consider for my flight from Phoenix to Knoxville?

    Allegiant Air and American Airlines offer great options when considering family-friendly airlines for your Phoenix to Knoxville flight. Allegiant Air provides a dedicated kids' zone with coloring books and games, while American Airlines offers in-flight entertainment with kid-friendly movies and TV shows. They also offer priority boarding for families with kids.

  • Which eco-friendly airline should I consider for my Phoenix to Knoxville flight?

    One of the eco-friendly airlines to consider for your Phoenix to Knoxville flight is Allegiant Air. The airline has significantly reduced its environmental impact by implementing fuel-efficient aircraft, optimizing flight routes, and implementing recycling programs. Choosing Allegiant Air would contribute to a greener travel experience.

  • How can I connect from Knoxville McGhee Tyson (TYS) to the city center after landing from my Phoenix to Knoxville flight?

    Among the transport options you could consider for your movement from TYS to the city after your flight from Phoenix to Knoxville are a car rental, a taxi, a ride-share service, or public means of transport – such as buses or trains. Some of the popular buses offering cheap transport options from TYS to the city center are the Knoxville Area Transit (KAT) buses.

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

    In the last 3 days, the lowest price for a flight from Phoenix Sky Harbor Intl Airport to Knoxville was $64 for a one-way ticket and $95 for a round-trip.

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

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

  • Which airports will I be using when flying from Phoenix to Knoxville?

    Phoenix and Knoxville are both served by 1 main airport. You will leave Phoenix from Phoenix Sky Harbor Intl and will be arriving at Knoxville McGhee Tyson.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Phoenix to Knoxville are Delta and United Airlines. With an average price for the route of $372 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $465 and an overall rating of 7.4.

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

    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 Phoenix to Knoxville.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Phoenix 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 Phoenix to Knoxville?

    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 Knoxville with an airline and back to Phoenix with another airline. Booking your flights between Phoenix and TYS 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 Phoenix to Knoxville?

    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 Knoxville from Phoenix 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 Phoenix Sky Harbor Intl Airport to Knoxville

  • Looking for a cheap flight? 25% of our users found flights on this route for $65 or less one-way and $146 or less round-trip.
  • With Sky Harbor Intl (PHX) acting as the hub and an operating base for American Airlines, the airline has arguably the highest number of flights to various destinations, including Knoxville. To access a flight that will fit your schedule to Knoxville, consider booking your flight with American Airlines.
  • Since most airlines offering flights from Phoenix to Knoxville offer indirect flights, you have to consider including your layovers during your budgeting process. Some of the common layovers to include in your budgeting and planning process are Atlanta Hartsfield-Jackson (ATL), Charlotte Douglas (CLT), and Chicago O'Hare Intl (ORD).
  • When traveling from Phoenix to Knoxville on a limited-time schedule, you have to consider booking your flight with Allegiant Air. Allegiant Air is highly ranked among the airlines with the highest direct flights for the route.
  • Although most airlines operating from Phoenix to Knoxville highly consider Persons with Reduced Mobility PRMs, Allegiant Air and American Airlines have the best accessibility services. To ensure travel convenience and inclusivity on their flight, these airlines offer priority boarding for PRMs. They also have a team of well-trained and experienced professionals whose primary role is to ensure accessibility services for PRMs.
  • To conveniently fly from Phoenix to Knoxville with your furry friend, consider booking your flight with American Airlines. Provided your pet is at least eight weeks old, its weight plus the carrier is not exceeding 20 lbs, and the carrier can fit under your chair, you will travel with your pet in the cabin. However, your larger pets will be transported as cargo in an appropriate pressure and temperature-controlled cargo hold.

Prefer to fly direct from Phoenix to Knoxville?

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

Direct departures

Phoenix Sky Harbor Intl to Knoxville McGhee Tyson

Thursday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Direct returns

Knoxville McGhee Tyson to Phoenix Sky Harbor Intl

Thursday

Allegiant Air

Allegiant Air

Sunday

Allegiant Air

Allegiant Air

See more direct flights

Reviews of the top 5 airlines serving from Phoenix to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Phoenix to Knoxville. 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 Phoenix to Knoxville? 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.
8.0
DeltaOverall score based on 7980 reviews
7.9Entertainment
8.2Boarding
7.3Food
7.9Comfort
8.5Crew
Airline reviews

Delayed and took off even later than the scheduled delay time

8.0 ExcellentAnonymous, Jul 2025DTW - SEA
Read more Delta reviews

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

I didn't like that my paid for seat was changed 2 hours before my flight.

Overall, a good experience. The food, however, was subpar. The breakfast was a joke.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

At least it was a short flight. Greyhound with wings.

Bigger seats. Board back to front! Disembark front to back!

Plane was pretty clean, staff was friendly and helpful, flight left about on time arrived early. Took a long time to board and get off the plane - carry on items didn't have enough room so people had to move all around to find places.

Service in first class no longer exists on American Airlines .

My seat was very worn. Otherwise I had an excellent flight

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.

They did not let my husband on the plane with our service animal at the last minute. Do NOT fly this airline with a service animal!

Tight! Seats are not designed for those of us who wear extra-large clothes.

The non-stop flight from Grand Rapids was excellent. I neither expected or needed a budget flight and Allegiant made the trip easy and for an affordable price, Arriving at the Mesa Airport (AZA) is a delight compared to the international airport. For our return flight, we were able to arrive 75 minutes before the flight, return the rental car, check our bag and make it to the gate in plenty of time. That would never happen at most airports.

Easiest flights I’ve ever taken. Plane was comfortable without overly crowded seating.

Terrible. Still have not received the refund from them. They sent it to some account that I don't even know. Spoke with costumer service and they are unable to help.

I didn’t like it at all. I miss my second flight because of the delay on Allegiant Air now I m stuck in MCO.

Good, but a bit late on take off after loading. Don't like charging for carry ons!

First time flying with them and will definitely fly again in the future. Crew was so nice and friendly, fought was seamless. They are simple planes, no entertainment, but it’s fine for a short flight or if you have personal devices Rates are competitive, and they did so well with keeping the flight on time after a tropical storm, where other airlines had delays and cancellations.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

The ticketing agents were rude but then we had a great gate agent very nice we had to ride a buss out to where the plane was parked but it was in some back corner of the airport when we got to the plane the captain who was great btw was cleaning the plane because the same rude ticketing agent told them they we not contracted to vacuum the plane. The ride to las Vegas was fine We had a connecting flight to Dallas. The flight was fine but when we arrived in Dallas everyone who flew on any frontier airlines the picked up bags from baggage claim D15 had to wait over a hour for their bags to start we arrived at 11:30pm ish to the gate we didn't leave the baggage clamed till 12:50 am very not happy and i used to fly frontier 4 times a week for work in Denver i will not be using them again

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

My flight was canceled I was promised a reginf still not received.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

Both legs of the flight were changed. The day of the flight and length of the trip.

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

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

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