Cheap Flights from Knoxville to Phoenix from $243

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Flight deals from Knoxville to Phoenix

Looking for a cheap last-minute deal or the best return flight from Knoxville Airport to Phoenix? If you want to travel next month, return fares start from $441. Find the lowest prices on one-way and return tickets right here.

Phoenix.$243 per passenger.Departing Sun, 23 Aug, returning Sun, 6 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 23 Aug, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 6 Sep, arriving in Knoxville.Price includes taxes and charges.From $243, select.

Phoenix.$250 per passenger.Departing Sun, 23 Aug, returning Thu, 27 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 23 Aug, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 27 Aug, arriving in Knoxville.Price includes taxes and charges.From $250, select.

Phoenix.$254 per passenger.Departing Thu, 10 Sep, returning Sun, 13 Sep.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 10 Sep, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 13 Sep, arriving in Knoxville.Price includes taxes and charges.From $254, select.

Phoenix.$287 per passenger.Departing Sun, 18 Oct, returning Sun, 25 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 18 Oct, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 25 Oct, arriving in Knoxville.Price includes taxes and charges.From $287, select.

Phoenix.$332 per passenger.Departing Thu, 30 Jul, returning Thu, 6 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 30 Jul, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 6 Aug, arriving in Knoxville.Price includes taxes and charges.From $332, select.

Phoenix.$339 per passenger.Departing Thu, 12 Nov, returning Sun, 15 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 12 Nov, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 15 Nov, arriving in Knoxville.Price includes taxes and charges.From $339, select.

Phoenix.$365 per passenger.Departing Sun, 10 Jan, returning Thu, 21 Jan.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 10 Jan, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 21 Jan, arriving in Knoxville.Price includes taxes and charges.From $365, select.

Phoenix.$369 per passenger.Departing Sun, 6 Dec, returning Thu, 10 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 6 Dec, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 10 Dec, arriving in Knoxville.Price includes taxes and charges.From $369, select.

Phoenix.$417 per passenger.Departing Thu, 17 Sep, returning Mon, 5 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 17 Sep, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Mon, 5 Oct, arriving in Knoxville.Price includes taxes and charges.From $417, select.

Phoenix.$441 per passenger.Departing Thu, 16 Jul, returning Thu, 30 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 16 Jul, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 30 Jul, arriving in Knoxville.Price includes taxes and charges.From $441, select.

Phoenix.$528 per passenger.Departing Tue, 24 Nov, returning Sun, 6 Dec.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Tue, 24 Nov, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 6 Dec, arriving in Knoxville.Price includes taxes and charges.From $528, select.

Phoenix.$531 per passenger.Departing Thu, 22 Oct, returning Sun, 8 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 22 Oct, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 8 Nov, arriving in Knoxville.Price includes taxes and charges.From $531, select.

Phoenix.$551 per passenger.Departing Sun, 28 Jun, returning Thu, 16 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 28 Jun, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 16 Jul, arriving in Knoxville.Price includes taxes and charges.From $551, select.

Phoenix.$680 per passenger.Departing Fri, 16 Apr, returning Tue, 20 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Knoxville on Fri, 16 Apr, arriving in Phoenix Sky Harbor.Inbound indirect flight with Delta, departs from Phoenix Sky Harbor on Tue, 20 Apr, arriving in Knoxville.Price includes taxes and charges.From $680, select.

Phoenix.$682 per passenger.Departing Sat, 6 Feb, returning Sat, 20 Feb.Return flight with United.Outbound indirect flight with United, departs from Knoxville on Sat, 6 Feb, arriving in Phoenix Sky Harbor.Inbound indirect flight with United, departs from Phoenix Sky Harbor on Sat, 20 Feb, arriving in Knoxville.Price includes taxes and charges.From $682, select.

Phoenix.$701 per passenger.Departing Sun, 7 Jun, returning Sun, 21 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 7 Jun, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 21 Jun, arriving in Knoxville.Price includes taxes and charges.From $701, select.

Find the cheapest month to fly from Knoxville to Phoenix

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Knoxville to Phoenix flights are currently cheapest in August.

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Direct flights from Knoxville to Phoenix

Alternative Knoxville to Phoenix routes

Looking for the cheapest, fastest or easiest route from Knoxville to Phoenix? You could fly into the following airports instead.

Knoxville to Phoenix: Flight information

The things to know before you go.

Cheapest flight found	$243
Cheapest month to fly	August
Average flight time	4 hrs, 3 mins
Most popular airline	Allegiant Air
Average flights per week	6

Finding cheap flights from Knoxville to Phoenix: Frequently asked questions

How many airports are there in Phoenix?

There are 4 airports in Phoenix: Phoenix Sky Harbor, Phoenix Scottsdale Municipal, Phoenix-Deer Valley, and Phoenix-Mesa Gateway.

How much are return flights from Knoxville to Phoenix?

The best price we found for a return flight from Knoxville to Phoenix is $243. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Knoxville to Phoenix?

4 hours and 3 minutes is the average flight time from Knoxville to Phoenix.

Which airlines fly direct from Knoxville to Phoenix?

Allegiant Air flies direct from Knoxville to Phoenix.

How many flights are there a week from Knoxville to Phoenix?

As of June 2026, there are 3 flights per week flying from Knoxville to Phoenix.

When is the cheapest time to fly from Knoxville to Phoenix?

The cheapest month to fly from Knoxville to Phoenix is usually August.

Which is the cheapest airport to fly into in Phoenix?

If you're flying from Knoxville Airport, the cheapest airport near Phoenix is Phoenix Sky Harbor – which is 6.0 km away from the centre of Phoenix. We've found flights into this airport from $243.

Which upcoming date is cheapest to fly from Knoxville Airport to Phoenix on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Knoxville Airport to Phoenix on Sunday, 23 August 2026.

Can I get a direct flight from Knoxville Airport to Phoenix?

Yes – the average flight time is 4 hours and 3 minutes.

How can I get the best flight deal from Knoxville Airport to Phoenix?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Phoenix but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Phoenix?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Phoenix is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Phoenix?

In June, the average temperature is usually around 30°C. July is typically the warmest month in Phoenix, when it usually averages around 40°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 4°C. The rainiest month is August.

Which is the cheapest airline to fly from Knoxville Airport to Phoenix with?

Currently, Allegiant Air offers the cheapest flight tickets to Phoenix.

Travelling from Knoxville McGhee Tyson Airport (TYS) to Phoenix: what you need to know

Around 3 hours 30 minutes is how long you'll be travelling on a direct flight from Knoxville McGhee Tyson Airport to Phoenix.
Knoxville McGhee Tyson Airport is located in Knoxville. Based in the UTC-7 timezone, Phoenix is two hours behind Knoxville.
To avoid rushing for your TYS to Phoenix flight, allow plenty of time to navigate the airport and find your gate. Arriving two hours before international departures and one hour before domestic flights is the general rule.
Flying during a peak month such as June? Public holidays and other popular periods can mean longer lines at check-in and security. Be extra cautious and get there up to four hours before an international flight and two hours before domestic departures.
You can book a direct Knoxville McGhee Tyson Airport to Phoenix ticket. Start your trip at TYS and touch down at Phoenix Sky Harbour International Airport (PHX).
Allegiant Air is a well-known airline that operates direct flights from Knoxville McGhee Tyson Airport to Phoenix.
TYS is around 18 kilometres from central Knoxville. If you're catching a taxi, driving or ride-sharing from the centre, it'll take 25 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the travel time to be around 50 minutes.
Catching an early flight from Knoxville McGhee Tyson Airport to Phoenix? Avoid the hassle of rushing to the airport (and sneak in some extra precious sleep) by choosing one of these hotels near TYS:
When it comes to the on-time performance of Knoxville McGhee Tyson Airport, 76% of flights stick to their scheduled arrival time.
You'll find TYS at 2055 Alcoa Highway.

How to find the cheapest flights from Knoxville McGhee Tyson Airport (TYS) to Phoenix

The lowest price we've found for a one-way Knoxville McGhee Tyson Airport to Phoenix flight is $118. The cheapest price for a return flight is $243. Keep in mind fares can change due to availability at the time of booking.
Booking in advance is often the key to finding a cheap flight from TYS to Phoenix. Fares tend to rise as demand increases, so the closer you get to departure, the more it could cost you.
The 'Whole month' search tool will show you the cheapest tickets from Knoxville McGhee Tyson Airport to Phoenix across the month. It's an easy way to snap up a bargain if your travel dates are flexible.
Save time searching for cheap flights from TYS to Phoenix by setting up a Price Alert. You'll receive an email or notification through the app when fares go down.
Find a cheap flight from Knoxville McGhee Tyson Airport to Phoenix with the help of our filters. Select your ideal duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Phoenix

Phoenix Sky Harbour International Airport (PHX)

The distance from Phoenix Sky Harbour International Airport (PHX) to central Phoenix is roughly 5 kilometres. It takes around 10 minutes to reach the centre driving.
It'll take around 25 minutes if you're travelling by public transport.
If you're coming in on a late flight from Knoxville McGhee Tyson Airport to Phoenix, nothing beats the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and sleeping not long after at one of these accommodation options near PHX:
Secure the lowest price by booking your vehicle from Phoenix Sky Harbour International Airport about one week before your flight from TYS to Phoenix.
PHX is located at 3400 Sky Harbour Boulevard.

Phoenix-Mesa Gateway Airport (AZA)

The centre of Phoenix is around 32 kilometres from Phoenix-Mesa Gateway Airport (AZA). Once your flight from Knoxville McGhee Tyson Airport to Phoenix has landed and you've made your way through the terminal, expect a drive of around 30 minutes.
If you choose to travel on public transport, you'll reach the centre in 1 hour 15 minutes or so.
You'll find some great places ready to welcome you near AZA. Unwind and get cosy after your TYS to Phoenix flight at any of these well-located options:
Snap up a deal by securing your ride from AZA two weeks ahead of time. You'll also have access to a wider selection of vehicles.
You'll find Phoenix-Mesa Gateway Airport at 6033 S. Sossaman Rd..

Best time to go to Phoenix

It's time to work out your travel dates for your flight from Knoxville McGhee Tyson Airport to Phoenix. March is the most popular month for a trip to Phoenix. If you like a more peaceful vibe, go in October.
The warmest month in Phoenix is July, with temperatures ranging between 27ºC and 45ºC. Book your Knoxville McGhee Tyson Airport to Phoenix plane ticket then if that's your idea of comfortable weather.
If you want cooler conditions, search for a cheap ticket from TYS to Phoenix in January when temperatures average between 4ºC and 21ºC.

More about Phoenix

After booking your flight from Knoxville McGhee Tyson Airport to Phoenix, choose a hotel that puts you where you want to be. Make one of these accommodation options your base for exploring Phoenix:
There are so many things to discover in this city it can be hard to work out where to begin. Yayoi Kusama Fireflies Infinity Mirror Room, Camelback Mountain and Heard Museum are major attractions which should feature on any good Phoenix itinerary.

Explore more of the United States

San Diego is just one of the many cities in the United States waiting to be discovered once you've seen Phoenix. Around 483 kilometres away to the west, popular attractions include San Diego Zoo, San Diego Balboa Park and USS Midway Museum.
Around 418 kilometres northwest of Phoenix, Las Vegas is another favourite stop in the United States. No visit is complete without checking out Ciudad del Pecado o Las Vegas, Las Vegas Strip and Fountains of Bellagio.