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Sky Harbor Intl

$71+ Cheap flights from Knoxville (TYS) to Sky Harbor Intl (PHX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHX
Mar 25 — Apr 11
Wed 3/25
Wed 4/1
1 adult, Economy
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Find cheap flights from Knoxville to Sky Harbor Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl are usually found in September or August, booked 36 days in advance, depart on a Friday or Thursday and return on a Wednesday

Cheap flight deals from Knoxville to Sky Harbor Intl

Cheapest flights from Knoxville to Sky Harbor Intl
Explore the most affordable flight options available from Knoxville to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 23, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Thu 4/239:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 2/19$190
This Booking.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/53:24 pm
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Thu 4/99:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 2/21$191
This Booking.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/53:24 pm
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Thu 4/239:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 2/20$199
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/62:51 pm
TYS
-
PHX
Nonstop4h 10m
Allegiant Air
Sun 8/94:51 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Deal found 2/19$201
This Expedia deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:20 pm
TYS
-
PHX
1 stop10h 27m
Frontier
Thu 4/166:50 am
PHX
-
TYS
1 stop5h 43m
Frontier
Deal found 2/19$211
This Priceline deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/194:28 pm
TYS
-
PHX
1 stop6h 42m
Frontier
Thu 4/236:50 am
PHX
-
TYS
1 stop5h 43m
Frontier
Deal found 2/19$232
This Kiwi.com deal was found by Cheapflights users on 2/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/64:20 pm
TYS
-
PHX
1 stop28h 27m
Frontier
Sun 4/129:24 pm
PHX
-
TYS
1 stop15h 04m
Frontier
Deal found 2/22$241
This Kiwi.com deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/234:20 pm
TYS
-
PHX
1 stop22h 34m
Multiple Airlines
Wed 3/256:45 pm
PHX
-
TYS
2 stops25h 00m
Multiple Airlines
Deal found 2/20$242
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:00 am
TYS
-
PHX
Nonstop4h 06m
Multiple Airlines
Wed 4/1512:50 pm
PHX
-
TYS
1 stop23h 43m
Multiple Airlines
Deal found 2/21$244
This Cheapflightsfares deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:00 am
TYS
-
PHX
Nonstop4h 06m
Allegiant Air
Sun 5/179:56 am
PHX
-
TYS
Nonstop3h 24m
Allegiant Air
Deal found 2/20$245
This Kiwi.com deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:00 am
TYS
-
PHX
Nonstop4h 06m
Multiple Airlines
Tue 4/2110:50 am
PHX
-
TYS
2 stops20h 46m
Multiple Airlines
Deal found 2/19$247

Find flight deals from Knoxville to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Sky Harbor Intl (PHX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$190
(Cheapflightsfares)

One-way from

$71
(Cheapflightsfares)

Popular in

November

Cheapest in

September

Average price

$329

Good round-trip deal

$199 or less

Good one-way deal

$118 or less
Provider with most accurate pricing for Knoxville McGhee Tyson-Phoenix Sky Harbor Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Phoenix Sky Harbor Intl flights.
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From Knoxville McGhee Tyson to Phoenix Sky Harbor Intl
Search Deals
One-way flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl.
Search Deals
Price to beat on a one-way flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Sky Harbor Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 23, 2026.
Use the filters below to find and compare flights from Knoxville to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Knoxville

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sun 4/19

4:28 pm-8:10 pm

1 stop6h 42m

Phoenix Sky Harbor Intl

Thu 4/23

6:50 am-3:33 pm

1 stop5h 43m

$232

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Mon 4/13

4:20 pm-11:45 am

1 stop22h 25m

Phoenix Sky Harbor Intl

Thu 4/16

10:29 pm-5:30 pm

2 stops16h 01m

$273

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sun 4/19

4:28 pm-7:36 am

1 stop18h 08m

Phoenix Sky Harbor Intl

Thu 4/23

9:56 am-4:20 pm

Nonstop3h 24m

$274

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sat 4/11

4:30 pm-8:19 pm

1 stop6h 49m

Phoenix Sky Harbor Intl

Tue 4/14

12:00 pm-11:41 pm

2 stops8h 41m

$299

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sat 4/11

4:30 pm-8:19 pm

1 stop6h 49m

Phoenix Sky Harbor Intl

Wed 4/15

12:00 pm-11:41 pm

2 stops8h 41m

$299

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sun 4/5

3:24 pm-4:30 pm

Nonstop4h 06m

Phoenix Sky Harbor Intl

Thu 4/23

5:03 pm-10:51 pm

2 stops26h 48m

$302

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Tue 3/17

6:20 pm-11:20 pm

1 stop8h 00m

Phoenix Sky Harbor Intl

Tue 3/24

5:45 am-1:40 pm

1 stop4h 55m

$309

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 3/19

5:10 pm-9:14 pm

1 stop7h 04m

Phoenix Sky Harbor Intl

Tue 3/24

11:55 pm-11:17 am

1 stop8h 22m

$368

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Fri 4/3

4:30 pm-10:09 pm

1 stop8h 39m

Phoenix Sky Harbor Intl

Mon 4/6

11:59 pm-10:08 am

1 stop7h 09m

$374

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Mon 4/20

5:54 pm-10:42 pm

1 stop7h 48m

Phoenix Sky Harbor Intl

Fri 4/24

11:55 pm-11:17 am

1 stop8h 22m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 20 results
1
2

Compare providers for flights from Knoxville to Sky Harbor Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Sky Harbor Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Phoenix Sky Harbor Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Phoenix Sky Harbor Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Phoenix Sky Harbor Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Phoenix Sky Harbor Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Phoenix Sky Harbor Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Sky Harbor Intl. Price data was last updated on February 20, 2026.

To ensure you get the cheapest price possible for a flight from Knoxville to Phoenix Sky Harbor Intl Airport, you should look to book at least 36 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Knoxville to Phoenix Sky Harbor Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Phoenix Sky Harbor Intl Airport (average of $106). Flying from Knoxville to Phoenix Sky Harbor Intl Airport in December is currently the most expensive (average of $203). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sky Harbor Intl. Reviews last updated February 23, 2026.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Phoenix Sky Harbor Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,236 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,236 reviews
Delta
7.9
Good
8,236 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,342 reviews
Delta
7.9
Good
8,236 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,339 reviews
Delta
7.9
Good
8,236 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
710 reviews
Delta
7.9
Good
8,236 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,044 reviews
Delta
7.9
Good
8,236 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Boarding

8.1

Overall

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Knoxville to Phoenix Sky Harbor Intl?

    Most people fly from Knoxville McGhee Tyson (TYS) if they book a flight from Knoxville to Phoenix Sky Harbor Intl. On average, McGhee Tyson has 0 outbound flights to Phoenix Sky Harbor Intl per day from 5 airlines. Knoxville McGhee Tyson is conveniently located just 11.3 mi from Knoxville’s city center.

  • How long is the flight from Knoxville to Phoenix Sky Harbor Intl Airport?

    Frontier and United Airlines can get you from Knoxville to Phoenix Sky Harbor Intl Airport in just under 6h 42m. Your travel time can differ by up to 07m. The distance between Knoxville and Phoenix Sky Harbor Intl Airport is about 1594 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Knoxville to Phoenix Sky Harbor Intl Airport round-trip?

    Cheapflights users have booked flights from Knoxville to Phoenix Sky Harbor Intl Airport round-trip from $70. Other airlines that can offer you cheap pricing are Allegiant Air, from $111, and Delta, from $128. Frontier is priced at 77% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Knoxville to Phoenix Sky Harbor Intl Airport one-way?

    $65 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Allegiant Air and American Airlines, with prices starting from $71 and $114, respectively.

  • What are the cheapest flights from Knoxville to Phoenix Sky Harbor Intl Airport?

    The cheapest flight price from Knoxville to Phoenix Sky Harbor Intl Airport is $101. On average you can expect to pay $203. The most popular route, (Knoxville McGhee Tyson - Phoenix Sky Harbor Intl), can usually be booked for $190.

  • Can I find deals for flights from Knoxville to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on Knoxville to Sky Harbor Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Sky Harbor Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Sky Harbor Intl.

  • Can I find deals for business class flights from Knoxville to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Knoxville to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Phoenix Sky Harbor Intl Airport (average of $106). Flying from Knoxville to Phoenix Sky Harbor Intl Airport in December is currently the most expensive (average of $203). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Goodyear
Glendale
Paradise Valley
Casa Grande
Globe
Payson
Camp Verde
Peoria
Chandler
Surprise
Buckeye
Guadalupe

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Alternative routes for Knoxville to Sky Harbor Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Knoxville to Sky Harbor Intl

Discover the top 5 airlines that operate flights from Knoxville to Sky Harbor Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$70Average$297FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$111Average$221FlexibilityNo cancel feeOn-time88%
DeltaCheapest$128Average$315FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$170Average$437FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$391FlexibilityNo cancel feeOn-time71%

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