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Sky Harbor Intl

$74+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — PHX
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
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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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl are usually found in September or August, booked 67 days in advance, depart on a Thursday or Wednesday 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 December 9, 2025.

This Mytrip deal was found by Cheapflights users on 12/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:52 pmTYS - PHX
1 stop9h 52mFrontier
Sat 12/203:43 pmPHX - TYS
1 stop21h 48mFrontier
Deal found 12/8$237
This Booking.com deal was found by Cheapflights users on 12/8. 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 12/142:01 pmTYS - PHX
Nonstop4h 05mMultiple Airlines
Sat 12/203:43 pmPHX - TYS
1 stop21h 48mMultiple Airlines
Deal found 12/8$262
This Priceline deal was found by Cheapflights users on 12/7. 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.
Mon 12/84:52 pmTYS - PHX
1 stop9h 52mFrontier
Mon 12/157:00 amPHX - TYS
1 stop6h 57mFrontier
Deal found 12/7$274
This Booking.com deal was found by Cheapflights users on 12/7. 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.
Thu 12/114:52 pmTYS - PHX
1 stop26h 19mFrontier
Sat 12/134:12 pmPHX - TYS
1 stop21h 45mFrontier
Deal found 12/7$297
This Mytrip deal was found by Cheapflights users on 12/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/144:52 pmTYS - PHX
1 stop17h 14mFrontier
Sat 12/2010:31 pmPHX - TYS
1 stop15h 00mFrontier
Deal found 12/8$301
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/295:46 pmTYS - PHX
3 stops56h 49mMultiple Airlines
Thu 1/81:16 pmPHX - TYS
Nonstop3h 23mMultiple Airlines
Deal found 12/9$327
This Kiwi.com deal was found by Cheapflights users on 12/8. 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 12/186:30 amTYS - PHX
1 stop19h 59mMultiple Airlines
Tue 12/237:25 amPHX - TYS
2 stops27h 37mMultiple Airlines
Deal found 12/8$334
This Priceline deal was found by Cheapflights users on 12/8. 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.
Thu 12/184:26 pmTYS - PHX
1 stop10h 03mFrontier
Tue 12/237:00 amPHX - TYS
1 stop6h 51mFrontier
Deal found 12/8$337
This Booking.com deal was found by Cheapflights users on 12/7. 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.
Thu 12/112:01 pmTYS - PHX
Nonstop4h 05mMultiple Airlines
Sat 12/134:12 pmPHX - TYS
1 stop21h 45mMultiple Airlines
Deal found 12/7$338
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/295:46 pmTYS - PHX
2 stops20h 46mMultiple Airlines
Wed 1/77:39 pmPHX - TYS
1 stop17h 49mMultiple Airlines
Deal found 12/9$351

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 December 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$143
(Mytrip)

One-way from

$74
(Frontier)

Popular in

November

Cheapest in

September

Average price

$341

Good round-trip deal

$213 or less

Good one-way deal

$135 or less
Provider with most accurate pricing for Knoxville McGhee Tyson-Phoenix Sky Harbor Intl flight deals.
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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
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One-way flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($30 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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Price to beat on a round-trip flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl.
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Price to beat on a one-way flight from Knoxville McGhee Tyson to Phoenix Sky Harbor Intl.
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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 December 9, 2025.
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 1/18

10:00 am-12:26 pm

Nonstop4h 26m

Phoenix Sky Harbor Intl

Fri 1/23

7:00 am-3:30 pm

1 stop6h 30m

$150

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 1/29

10:00 am-12:26 pm

Nonstop4h 26m

Phoenix Sky Harbor Intl

Thu 2/5

6:25 pm-3:30 pm

1 stop19h 05m

$162

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Mon 2/2

4:30 pm-1:40 pm

1 stop23h 10m

Phoenix Sky Harbor Intl

Sun 2/8

1:16 pm-6:39 pm

Nonstop3h 23m

$200

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Thu 1/15

8:18 pm-12:59 am

1 stop30h 41m

Phoenix Sky Harbor Intl

Thu 1/22

1:16 pm-6:39 pm

Nonstop3h 23m

$231

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Mon 2/2

7:35 am-8:07 pm

1 stop14h 32m

Phoenix Sky Harbor Intl

Sat 2/7

8:30 am-5:53 pm

2 stops31h 23m

$242

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Wed 1/7

3:53 pm-8:31 am

2 stops18h 38m

Phoenix Sky Harbor Intl

Thu 1/8

5:33 pm-4:50 pm

1 stop21h 17m

$244

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sun 2/1

1:39 pm-3:22 pm

2 stops27h 43m

Phoenix Sky Harbor Intl

Thu 2/5

8:36 pm-4:50 pm

1 stop18h 14m

$265

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sun 1/11

10:00 am-12:26 pm

Nonstop4h 26m

Phoenix Sky Harbor Intl

Thu 1/15

10:16 pm-4:50 pm

1 stop16h 34m

$276

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Sun 1/4

2:01 pm-4:06 pm

Nonstop4h 05m

Phoenix Sky Harbor Intl

Sun 1/11

7:00 am-3:28 pm

1 stop6h 28m

$278

KnoxvillePhoenix

TYS - PHX

TYSPHX

Knoxville McGhee Tyson

Tue 1/6

5:37 pm-4:43 pm

2 stops25h 06m

Phoenix Sky Harbor Intl

Thu 1/8

7:00 am-3:28 pm

1 stop6h 28m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/7

Showing 1-10 of 19 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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Knoxville-Phoenix Sky Harbor Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 December 5, 2025.

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 66 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 $197). 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.

What is the cheapest time of day to fly from TYS to PHX?

Find hourly flight availability from Knoxville to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 9, 2025.

A simple way to save on the total cost of your ticket is to fly from Knoxville to Phoenix Sky Harbor Intl Airport in the morning. If you’re flexible enough to do this you can expect to save up to 60% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Sky Harbor Intl. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Knoxville to Phoenix Sky Harbor Intl Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 9, 2025.
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
8,007 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
9,092 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
11,048 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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
699 reviews
Delta
7.9
Good
8,007 reviews

Overall

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Comfort

7.9

Boarding

8.1

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 4 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?

    Allegiant Air can get you from Knoxville to Phoenix Sky Harbor Intl Airport in just under 4h 26m. Your travel time will be generally consistent. The distance between Knoxville and Phoenix Sky Harbor Intl Airport is about 1594 mi. Generally, flights for this route are nonstop.

  • 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 $108. Other airlines that can offer you cheap pricing are Delta, from $128, and United Airlines, from $170. Allegiant Air is priced at 66% 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 $68 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 $90. On average you can expect to pay $210. The most popular route, (Knoxville McGhee Tyson - Phoenix Sky Harbor Intl), can usually be booked for $143.

  • 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 $197). 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
Paradise Valley
Payson
Glendale
Casa Grande
Chandler
Globe
Peoria
Camp Verde
Buckeye
Surprise
Avondale
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 4 airlines flying from Knoxville to Sky Harbor Intl

Discover the top 4 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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$115Average$234FlexibilityNo cancel feeOn-time88%
DeltaCheapest$128Average$343FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$228Average$481FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$253Average$434FlexibilityNo cancel feeOn-time71%

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