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Cheap Flights from Knoxville to Phoenix Sky Harbor

Compare Knoxville to Phoenix Sky Harbor flight deals

Find the cheapest month or even day of the year to fly to Phoenix Sky Harbor

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Flight deals from Knoxville Airport to Phoenix Sky Harbor Airport

Looking for a cheap last-minute deal or the best return flight from Knoxville Airport to Phoenix Sky Harbor Airport? If you want to travel next month, return fares start from $396. Find the lowest prices on one-way and return tickets right here.
Phoenix.$297 per passenger.Departing Thu, 2 Jul, returning Thu, 9 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 2 Jul, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 9 Jul, arriving in Knoxville.Price includes taxes and charges.From $297, select.
Phoenix.$311 per passenger.Departing Thu, 30 Apr, returning Sun, 17 May.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 30 Apr, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 17 May, arriving in Knoxville.Price includes taxes and charges.From $311, select.
Phoenix.$320 per passenger.Departing Thu, 23 Jul, returning Sun, 2 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 23 Jul, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 2 Aug, arriving in Knoxville.Price includes taxes and charges.From $320, select.
Phoenix.$324 per passenger.Departing Thu, 6 Aug, returning Sun, 16 Aug.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 6 Aug, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 16 Aug, arriving in Knoxville.Price includes taxes and charges.From $324, select.
Phoenix.$336 per passenger.Departing Sun, 21 Jun, returning Thu, 9 Jul.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 21 Jun, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 9 Jul, arriving in Knoxville.Price includes taxes and charges.From $336, select.
Phoenix.$397 per passenger.Departing Sun, 3 May, returning Sun, 17 May.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 3 May, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sun, 17 May, arriving in Knoxville.Price includes taxes and charges.From $397, select.
Phoenix.$413 per passenger.Departing Sun, 14 Jun, returning Thu, 18 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Sun, 14 Jun, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 18 Jun, arriving in Knoxville.Price includes taxes and charges.From $413, select.
Phoenix.$422 per passenger.Departing Fri, 16 Oct, returning Thu, 5 Nov.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Fri, 16 Oct, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 5 Nov, arriving in Knoxville.Price includes taxes and charges.From $422, select.
Phoenix.$453 per passenger.Departing Thu, 28 May, returning Thu, 11 Jun.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 28 May, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 11 Jun, arriving in Knoxville.Price includes taxes and charges.From $453, select.
Phoenix.$464 per passenger.Departing Thu, 24 Sep, returning Sat, 10 Oct.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 24 Sep, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Sat, 10 Oct, arriving in Knoxville.Price includes taxes and charges.From $464, select.
Phoenix.$485 per passenger.Departing Thu, 16 Apr, returning Thu, 23 Apr.Return flight with Allegiant Air.Outbound direct flight with Allegiant Air departs from Knoxville on Thu, 16 Apr, arriving in Phoenix Sky Harbor.Inbound direct flight with Allegiant Air departs from Phoenix Sky Harbor on Thu, 23 Apr, arriving in Knoxville.Price includes taxes and charges.From $485, select.
Phoenix.$699 per passenger.Departing Sun, 6 Sep, returning Mon, 7 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Knoxville on Sun, 6 Sep, arriving in Phoenix Sky Harbor.Inbound indirect flight with Delta, departs from Phoenix Sky Harbor on Mon, 7 Sep, arriving in Knoxville.Price includes taxes and charges.From $699, select.

Find the cheapest month to fly from Knoxville to Phoenix Sky Harbor

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Knoxville to Phoenix Sky Harbor flights are currently cheapest in July.
Apr
from $485
May
from $397
Jun
from $413
Jul
from $297
Aug
from $324
Sep
from $699
Oct
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Nov
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Dec
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Jan
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Feb
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Mar
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Direct flights from Knoxville to Phoenix Sky Harbor

Knoxville to Phoenix Sky Harbor: Alternative routes

Compare routes from Knoxville to Phoenix below. You may find an airport to fly into that's cheaper, faster, or easier than Phoenix Sky Harbor.

Phoenix Sky Harbor

6km from central Phoenix
ClosestCheapest
from $297
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Phoenix Scottsdale Municipal

24km from central Phoenix
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Phoenix-Deer Valley

27km from central Phoenix
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Phoenix-Mesa Gateway

42km from central Phoenix
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Knoxville to Phoenix: Flight information

The things to know before you go.
Cheapest flight found$121
Cheapest month to flyApril
Average flight time4 hrs
Most popular airlineAllegiant Air
Average flights per week3

Finding cheap flights from Knoxville to Phoenix Sky Harbor: Frequently asked questions

The best price we found for a return flight from Knoxville to Phoenix Sky Harbor is $297. 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.
4 hours is the average flight time from Knoxville to Phoenix Sky Harbor.
Allegiant Air flies direct from Knoxville to Phoenix Sky Harbor.
As of April 2026, there are 3 flights per week flying from Knoxville to Phoenix Sky Harbor.
The cheapest month to fly from Knoxville to Phoenix Sky Harbor is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Knoxville Airport to Phoenix Sky Harbor Airport on Thursday, 2 July 2026.
Yes – the average flight time is 4 hours.
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 Sky Harbor 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.
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.
Currently, Allegiant Air offers the cheapest flight tickets to Phoenix Sky Harbor.

Flying from McGhee Tyson Airport (TYS) to Phoenix Sky Harbour International Airport (PHX): what you need to know

  • The average length of a direct flight from McGhee Tyson Airport to Phoenix Sky Harbour International Airport is 4 hours 10 minutes.

  • The timezone in Phoenix is UTC-7, which is three hours behind Knoxville.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably catch your TYS to PHX flight.

  • Be prepared for longer queues during popular months like July. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a wise move.

  • Allegiant Air is your gateway to discovering Phoenix (and maybe even some other exciting corners of United States!). Check out the direct flights from McGhee Tyson Airport to Phoenix Sky Harbour International Airport offered by this popular airline.

  • The airline with the highest number of bookings on this route is Allegiant Air.

  • The most punctual carrier that operates TYS to PHX flights is Allegiant Air. Its services land without delay 73.68% of the time.

How to find the cheapest flights from McGhee Tyson Airport (TYS) to Phoenix Sky Harbour International Airport (PHX)

  • $121 is currently the best price for a one-way McGhee Tyson Airport to Phoenix Sky Harbour International Airport flight. A return flight starts at $297. These prices may change depending on availability.

  • Score cheap tickets from TYS to PHX by booking at least six months ahead. Based on our research, that's the sweet spot for landing a bargain.

  • Schedule your trip for May. That's the cheapest month for flights from McGhee Tyson Airport to Phoenix Sky Harbour International Airport. If you're flexible with your dates, try out the 'Whole month' tool to see the lowest price across every month.

  • Getting your hands on cheap flights from TYS to PHX is a piece of cake with Price Alerts. Simply create one of these automatic alerts and we'll notify you as soon as a new discounted fare appears.

  • Select your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from McGhee Tyson Airport to Phoenix Sky Harbour International Airport.

Handy information about McGhee Tyson Airport (TYS)

  • TYS is located at 2055 Alcoa Highway.

  • 78.98% of flights departing from McGhee Tyson Airport arrive at their destination on schedule.

  • To get to McGhee Tyson Airport from central Knoxville, it'll take around 20 minutes by car. Of course, this depends on traffic conditions. It's approximately 23 kilometres from the airport to the city centre.

  • Catching an early flight from McGhee Tyson Airport to Phoenix Sky Harbour International Airport? Avoid the stress of rushing to the airport (and sneak in some extra precious sleep) by choosing one of these hotels close to TYS:

Arriving at Phoenix Sky Harbour International Airport (PHX)

Getting from Phoenix Sky Harbour International Airport (PHX) to central Phoenix

  • You'll find PHX at 3400 Sky Harbour Boulevard.

  • From Phoenix Sky Harbour International Airport, Phoenix is approximately 8 kilometres away. It takes around 10 minutes to reach the centre by car.

  • It takes roughly 35 minutes to get there by public transport.

When to fly to Phoenix Sky Harbour International Airport (PHX)

  • July is the busiest month for flights from McGhee Tyson Airport to Phoenix Sky Harbour International Airport. For smaller crowds, head to Phoenix in May.

  • When booking your flight from McGhee Tyson Airport to Phoenix Sky Harbour International Airport, think about the type of weather you enjoy. July is the warmest month in Phoenix, with the temperature ranging from 26ºC to 44ºC.

  • January has average temperatures of between 4ºC and 20ºC. Look for cheap tickets from TYS to PHX around that time if you want to travel in cooler conditions.

Explore more of United States

  • You've seen Phoenix, now it's time to discover other parts of United States. Journey about 483 kilometres west to San Diego to tick off its leading attractions. From San Diego Zoo to USS Midway Museum and SeaWorld San Diego, you'll have a full itinerary ahead.

  • If there's time to check out another corner of United States, consider Las Vegas, roughly 418 kilometres north-west of Phoenix. Las Vegas Strip, Fountains of Bellagio and Fremont Street Experience are key highlights.

Plan the rest of your trip from Knoxville to Phoenix

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.