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$64+ Cheap flights from Sky Harbor Intl (PHX) to Knoxville (TYS)

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 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson are usually found in January or February, booked 47 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Sky Harbor Intl to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Knoxville (TYS). 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 July 25, 2025.

Round-trip from

$88
(Booking.com)

One-way from

$64
(Cheapflightsfares)

Popular in

December

Cheapest in

January

Average price

$288

Good round-trip deal

$149 or less

Good one-way deal

$126 or less
From Phoenix Sky Harbor Intl to Knoxville McGhee Tyson
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One-way flight from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 2% potential increase in price ($7 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson.
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Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Knoxville McGhee Tyson.
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Find flight deals from Sky Harbor Intl to Knoxville

Cheapest flights from Sky Harbor Intl to Knoxville
Explore the most affordable flight options available from Sky Harbor Intl to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

This Booking.com deal was found by Cheapflights users on 7/23. 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.
Fri 10/178:02 amPHX - TYS
Nonstop3h 26mAllegiant Air
Sun 10/262:23 pmTYS - PHX
Nonstop3h 59mAllegiant Air
Deal found 7/23$88
This Mytrip deal was found by Cheapflights users on 7/23. 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 10/611:49 amPHX - TYS
Nonstop3h 30mMultiple Airlines
Sun 10/129:15 pmTYS - PHX
1 stop16h 41mMultiple Airlines
Deal found 7/23$225
This American Airlines deal was found by Cheapflights users on 7/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/275:30 amPHX - TYS
1 stop8h 06mAmerican Airlines
Wed 9/108:23 amTYS - PHX
1 stop7h 18mAmerican Airlines
Deal found 7/23$251
This Delta deal was found by Cheapflights users on 7/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:05 amPHX - TYS
1 stop8h 08mDelta
Sat 10/254:00 pmTYS - PHX
1 stop7h 41mDelta
Deal found 7/23$257
This Frontier deal was found by Cheapflights users on 7/24. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/208:44 amPHX - TYS
1 stop7h 53mFrontier
Thu 10/238:22 pmTYS - PHX
1 stop6h 07mFrontier
Deal found 7/24$258

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl to Knoxville 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 July 25, 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Knoxville that are best for you.

Fly from

Sky Harbor Intl

Fly to

Knoxville

Route

Depart

Return

Price

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Fri 10/17

8:02 am-2:28 pm

Nonstop3h 26m

Knoxville McGhee Tyson

Sun 10/26

2:23 pm-3:22 pm

Nonstop3h 59m

$88

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Mon 10/6

11:49 am-6:19 pm

Nonstop3h 30m

Knoxville McGhee Tyson

Sun 10/12

9:15 pm-10:56 am

1 stop16h 41m

$225

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 8/27

5:00 am-1:38 pm

1 stop5h 38m

Knoxville McGhee Tyson

Wed 9/10

8:23 am-11:43 am

1 stop6h 20m

$251

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Tue 10/14

7:05 am-6:13 pm

1 stop8h 08m

Knoxville McGhee Tyson

Sat 10/25

4:00 pm-8:41 pm

1 stop7h 41m

$257

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Mon 10/20

8:44 am-7:37 pm

1 stop7h 53m

Knoxville McGhee Tyson

Thu 10/23

8:22 pm-11:29 pm

1 stop6h 07m

$258

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 10/2

4:12 pm-10:42 pm

Nonstop3h 30m

$64

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 8/10

11:59 pm-4:12 pm

1 stop13h 13m

$121

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 9/28

6:00 am-4:18 pm

1 stop7h 18m

$129

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Tue 8/12

6:05 pm-11:30 am

2 stops14h 25m

$176

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 8/27

12:24 am-12:26 pm

1 stop9h 02m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

Showing 1-10 of 11 results
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Best time to book a flight from Sky Harbor Intl to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Knoxville

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

Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Knoxville. Price data was last updated on July 18, 2025.

To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Knoxville, you should look to book at least 47 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 Phoenix Sky Harbor Intl Airport to Knoxville?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Knoxville (average of $295). Flying from Phoenix Sky Harbor Intl Airport to Knoxville in March is currently the most expensive (average of $376). 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 PHX to TYS?

Find hourly flight availability from Sky Harbor Intl to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2025.

When flying from Phoenix Sky Harbor Intl Airport to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 57% versus a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Knoxville. Price data was last updated on July 20, 2025.

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

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated July 25, 2025.
Read through reviews of airlines operating flights from Phoenix Sky Harbor Intl Airport to Knoxville, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,967 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,876 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Allegiant Air
7.2
Good
700 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Boarding

8.1

Food

7.1

Entertainment

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Knoxville. 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 into for flights to Knoxville from Phoenix Sky Harbor Intl?

    If you book a flight to Knoxville from Phoenix Sky Harbor Intl, you will be flying to McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville. There are 0 flights from Phoenix Sky Harbor Intl to McGhee Tyson per day from 5 different airlines.

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

    Allegiant Air, at $88, was found to be the cheapest airline from Phoenix Sky Harbor Intl Airport to Knoxville.Alternate airlines to your destination round-trip include American Airlines and Delta. These flights start at 71% lower than the current average price 3 months from now.

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

    The cheapest airlines for a one-way flight from Phoenix Sky Harbor Intl Airport to Knoxville are Allegiant Air ($64), Frontier ($129), and Alaska Airlines ($176).

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

    Looking at all options, your cheapest flight can be booked for $64. While the most popular route (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson) can be booked for $88 on average our data indicates $170 when flying from Phoenix Sky Harbor Intl Airport to Knoxville.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Sky Harbor Intl to Knoxville 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 Phoenix Sky Harbor Intl Airport to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Knoxville (average of $295). Flying from Phoenix Sky Harbor Intl Airport to Knoxville in March is currently the most expensive (average of $376). 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 Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Morristown
Corbin
Cherokee
Alcoa
Oak Ridge
Murphy

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Alternative routes for Sky Harbor Intl to Knoxville

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

Discover the top 5 airlines that operate flights from Sky Harbor Intl to Knoxville. 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 July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$184FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$112Average$215FlexibilityNo cancel feeOn-time88%
DeltaCheapest$256Average$366FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$263Average$459FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$269Average$446FlexibilityNo cancel feeOn-time71%

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