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Cheap flights from Knoxville to Phoenix Sky Harbor Intl Airport from $108

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Phoenix Sky Harbor Intl Airport departing on 4/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Knoxville to Phoenix

Cheap round-trip flights

These are some of the best round-trip flight deals from Knoxville to Phoenix that have been recently found on momondo from popular airlines, departing in the coming months.
1:55 pm - 3:16 pmTYS-PHX
4h 21mnonstop
4:06 pm - 10:28 pmPHX-TYS
3h 22mnonstop
$188Allegiant Air
Find Deal
Thu, Apr 10 - Thu, Apr 17
6:00 am - 6:49 amTYS-PHX
3h 49mnonstop
2:55 pm - 9:32 pmPHX-TYS
3h 37mnonstop
$200Allegiant Air
Find Deal
Sun, Jul 13 - Tue, Jul 15
4:31 pm - 11:57 pmTYS-PHX
10h 26m1 stop
8:57 pm - 11:46 amPHX-TYS
11h 49m1 stop
$244Frontier
Find Deal
Thu, Apr 10 - Thu, Apr 17
4:31 pm - 11:57 pmTYS-PHX
10h 26m1 stop
6:00 am - 3:46 pmPHX-TYS
6h 46m1 stop
$352Frontier
Find Deal
Thu, Apr 3 - Sun, Apr 6
12:14 pm - 3:59 pmTYS-PHX
6h 45m1 stop
12:48 am - 10:38 amPHX-TYS
6h 50m1 stop
$463American Airlines
Find Deal
Wed, Apr 16 - Sat, Apr 19
4:31 pm - 5:15 pmTYS-PHX
27h 44m1 stop
12:45 am - 10:22 pmPHX-TYS
18h 37m1 stop
$487United Airlines
Find Deal
Thu, Apr 3 - Mon, Apr 7
4:31 pm - 5:15 pmTYS-PHX
27h 44m1 stop
6:00 am - 10:22 pmPHX-TYS
13h 22m2 stops
$488United Airlines
Find Deal
Thu, Apr 3 - Tue, Apr 8
3:14 pm - 7:43 pmTYS-PHX
7h 29m1 stop
6:00 am - 2:24 pmPHX-TYS
5h 24m1 stop
$489American Airlines
Find Deal
Sat, Apr 12 - Sat, Apr 19
2:35 pm - 7:11 pmTYS-PHX
7h 36m1 stop
6:00 am - 4:15 pmPHX-TYS
7h 15m1 stop
$493Delta
Find Deal
Thu, Mar 27 - Mon, Mar 31
5:45 am - 9:14 amTYS-PHX
6h 29m1 stop
11:55 pm - 9:13 amPHX-TYS
6h 18m1 stop
$508Delta
Find Deal
Wed, May 21 - Tue, Jul 29

Allegiant Air flights from Knoxville to Phoenix Sky Harbor Intl Airport

Our best Allegiant Air deals on Knoxville to Phoenix Sky Harbor Intl Airport flight tickets
Allegiant Air
Apr 10
TYS1:55 pmKnoxville McGhee Tyson
4h 21m
PHX3:16 pmPhoenix Sky Harbor Intl
Apr 17
PHX4:06 pmPhoenix Sky Harbor Intl
3h 22m
TYS10:28 pmKnoxville McGhee Tyson
Allegiant Air
Jul 13
TYS6:00 amKnoxville McGhee Tyson
3h 49m
PHX6:49 amPhoenix Sky Harbor Intl
Jul 15
PHX2:55 pmPhoenix Sky Harbor Intl
3h 37m
TYS9:32 pmKnoxville McGhee Tyson
Allegiant Air
May 27
TYS1:22 pmKnoxville McGhee Tyson
4h 15m
PHX2:37 pmPhoenix Sky Harbor Intl
Jul 29
PHX2:55 pmPhoenix Sky Harbor Intl
3h 37m
TYS9:32 pmKnoxville McGhee Tyson

Frontier flights from Knoxville to Phoenix Sky Harbor Intl Airport

Our best Frontier deals on Knoxville to Phoenix Sky Harbor Intl Airport flight tickets
Frontier
Apr 10
TYS4:31 pmKnoxville McGhee Tyson
10h 26m
1 stop
PHX11:57 pmPhoenix Sky Harbor Intl
Apr 17
PHX8:57 pmPhoenix Sky Harbor Intl
11h 49m
1 stop
TYS11:46 amKnoxville McGhee Tyson
Frontier
Mar 6
TYS4:23 pmKnoxville McGhee Tyson
10h 36m
1 stop
PHX12:59 amPhoenix Sky Harbor Intl
Mar 9
PHX6:00 amPhoenix Sky Harbor Intl
6h 43m
1 stop
TYS3:43 pmKnoxville McGhee Tyson
Frontier
Apr 3
TYS4:31 pmKnoxville McGhee Tyson
10h 26m
1 stop
PHX11:57 pmPhoenix Sky Harbor Intl
Apr 6
PHX6:00 amPhoenix Sky Harbor Intl
6h 46m
1 stop
TYS3:46 pmKnoxville McGhee Tyson

See travel insights to Phoenix from

How to get the cheapest flight ticket from Knoxville to Phoenix Sky Harbor Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, January is the cheapest month to fly from Knoxville to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $214. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of January, then departing from Knoxville during the month August is also very affordable. Most momondo users find prices during this month for around $242.

What is the cheapest day to depart on your flight to Phoenix Sky Harbor Intl Airport?

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Knoxville is on a Thursday. momondo users have found tickets for Thursday departures for as low as $222. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $336. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

What is the cheapest time of day to depart on your flight to Phoenix Sky Harbor Intl Airport?

In the morning is the cheapest time of day to fly from Knoxville to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $218. Flying to Phoenix Sky Harbor Intl Airport in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $300. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Knoxville McGhee Tyson to Phoenix Sky Harbor Intl flight route?

Fly from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl for the best Knoxville McGhee Tyson - Phoenix Sky Harbor Intl flight prices

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

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Knoxville when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $328 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Knoxville for as low as $212 on momondo.

What cabin class options are available on Knoxville McGhee Tyson to Phoenix Sky Harbor Intl flights?

There are 1 cabin classes available to choose from on Knoxville McGhee Tyson to Phoenix Sky Harbor Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Knoxville to Phoenix Sky Harbor Intl Airport flight prices changed over time?

As of February 2025, prices for Knoxville to Phoenix Sky Harbor Intl Airport flights are approximately 129% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Phoenix Sky Harbor Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Phoenix Sky Harbor Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Phoenix Sky Harbor Intl Airport (TYS to PHX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Phoenix Sky Harbor Intl Airport

Best Price Found

$108

Fastest flight time

3h 49m

Direct flights

Mon, Wed, Fri and Sun
The best one-way flight to Phoenix Sky Harbor Intl Airport from Knoxville in the past 72 hours is $108. The best round-trip flight deal from Knoxville to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $188.
The fastest flight from Knoxville to Phoenix Sky Harbor Intl Airport takes 3h 49m
Direct flights go from Knoxville to Phoenix Sky Harbor Intl Airport on Monday, Wednesday, Friday and Sunday. The only airline offering direct flights is Allegiant Air.

  • How far is Knoxville McGhee Tyson to Phoenix Sky Harbor Intl by plane?

    Knoxville McGhee Tyson and Phoenix Sky Harbor Intl are 1597.8 mi apart from one another. A reasonable flight in good conditions will take 3h 49m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Phoenix Sky Harbor Intl Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Phoenix Sky Harbor Intl Airport were last updated today.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Phoenix Sky Harbor Intl Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Phoenix Sky Harbor Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Phoenix Sky Harbor Intl Airport.

  • What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?

    The necessary travel and health documents for your Phoenix Sky Harbor Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Knoxville to Phoenix Sky Harbor Intl Airport?

  • What is the most popular airline from Knoxville to Phoenix Sky Harbor Intl Airport?


Best airlines flying from Knoxville to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from Knoxville to Phoenix Sky Harbor Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $131Free CancellationRating
7.3
759 reviews
Search Allegiant Air flights
FrontierPriceFrom $149Free CancellationRating
6.0
3,337 reviews
Search Frontier flights
DeltaPriceFrom $313Free CancellationRating
8.0
8,149 reviews
Search Delta flights
American AirlinesPriceFrom $335Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $360Free CancellationRating
7.4
8,733 reviews
Search United Airlines flights

Traveling to a place near Phoenix?

Book flights to Phoenix if you plan to visit one of these locations
Scottsdale
Mesa
Tempe
Chandler
Glendale
Gilbert
Surprise
Peoria
Wickenburg
Casa Grande
Payson
Apache Junction
Buckeye
Goodyear
Paradise Valley
Avondale
Camp Verde
Fountain Hills
Cave Creek
Guadalupe

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Phoenix?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to Phoenix for you.

Can I find flights from Knoxville to Phoenix with flexible booking policies on momondo?

momondo does allow users to show only those flights to Phoenix from Knoxville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Knoxville to Phoenix?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Phoenix from Knoxville.

I’m not ready to book a flight from Knoxville to Phoenix right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Knoxville to Phoenix flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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