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$100+ Cheap flights from Phoenix 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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Knoxville McGhee Tyson are usually found in January or November, booked 47 days in advance, depart on a Monday or Thursday and return on a Thursday

Cheap flight deals from Phoenix to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Phoenix (PH1) 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 May 1, 2025.

Round-trip from

$136
(Kiwi.com)

One-way from

$100
(Booking.com)

Popular in

December

Cheapest in

January

Average price

$373
From Phoenix to Knoxville McGhee Tyson
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One-way flight from Phoenix to Knoxville McGhee Tyson
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High demand for flights, 9% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Phoenix to Knoxville

Cheapest flights from Phoenix to Knoxville
Explore the most affordable flight options available from Phoenix to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Kiwi.com deal was found by Cheapflights users on 4/30. 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 7/107:39 amPHX - TYS
Nonstop3h 32mAllegiant Air
Sun 7/136:00 amTYS - PHX
Nonstop3h 49mAllegiant Air
Deal found 4/30$136
This Mytrip deal was found by Cheapflights users on 4/30. 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.
Thu 5/299:19 amPHX - TYS
1 stop25h 05mMultiple Airlines
Sun 6/16:00 amTYS - PHX
Nonstop4h 15mMultiple Airlines
Deal found 4/30$217
This Frontier deal was found by Cheapflights users on 4/28. 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.
Sun 6/17:18 amPHX - TYS
1 stop6h 11mFrontier
Thu 6/55:25 pmTYS - PHX
1 stop9h 13mFrontier
Deal found 4/28$238
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Tue 5/2711:35 pmPHX - TYS
1 stop7h 53mAmerican Airlines
Fri 5/302:54 pmTYS - PHX
1 stop7h 47mAmerican Airlines
Deal found 4/30$240
This United Airlines deal was found by Cheapflights users on 4/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2711:20 pmPHX - TYS
1 stop7h 47mUnited Airlines
Tue 6/37:00 amTYS - PHX
1 stop7h 19mUnited Airlines
Deal found 4/30$251
This Delta deal was found by Cheapflights users on 4/30. 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.
Sat 7/51:40 pmPHX - TYS
1 stop5h 47mDelta
Sat 7/127:46 amTYS - PHX
1 stop8h 52mDelta
Deal found 4/30$257
This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/139:00 amPHX - TYS
2 stops10h 07mAlaska Airlines
Tue 5/207:50 pmTYS - PHX
2 stops20h 15mAlaska Airlines
Deal found 4/29$560

Cheapflights Fare Finder

Customize your flight search to find flights from Phoenix 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 May 1, 2025.
Use the filters below to find and compare flights from Phoenix to Knoxville that are best for you.

Fly from

Phoenix

Fly to

Knoxville

Route

Depart

Return

Price

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 7/10

7:39 am-2:11 pm

Nonstop3h 32m

Knoxville McGhee Tyson

Sun 7/13

6:00 am-6:49 am

Nonstop3h 49m

$136

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 5/29

9:19 am-1:24 pm

1 stop25h 05m

Knoxville McGhee Tyson

Sun 6/1

6:00 am-7:15 am

Nonstop4h 15m

$217

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 6/1

7:18 am-4:29 pm

1 stop6h 11m

Knoxville McGhee Tyson

Thu 6/5

5:25 pm-11:38 pm

1 stop9h 13m

$238

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Tue 5/27

11:35 pm-10:28 am

1 stop7h 53m

Knoxville McGhee Tyson

Fri 5/30

2:54 pm-7:41 pm

1 stop7h 47m

$240

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Tue 5/27

11:20 pm-10:07 am

1 stop7h 47m

Knoxville McGhee Tyson

Tue 6/3

7:00 am-11:19 am

1 stop7h 19m

$251

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 7/5

1:40 pm-10:27 pm

1 stop5h 47m

Knoxville McGhee Tyson

Sat 7/12

7:46 am-1:38 pm

1 stop8h 52m

$257

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Tue 5/13

9:00 am-10:07 pm

2 stops10h 07m

Knoxville McGhee Tyson

Tue 5/20

7:50 pm-1:05 pm

2 stops20h 15m

$560

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 6/19

7:40 am-2:07 pm

Nonstop3h 27m

$100

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 5/29

11:45 pm-11:10 am

1 stop8h 25m

$115

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 6/5

7:18 am-4:29 pm

1 stop6h 11m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 13 results
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Best time to book a flight from Phoenix to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Phoenix 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 to Knoxville

How far ahead should I book a flight from Phoenix to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Phoenix to Knoxville. Price data was last updated on April 25, 2025.

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix to Knoxville. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Phoenix to Knoxville?

Currently, January is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $296). Flying from Phoenix 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 Phoenix 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 May 1, 2025.

When flying from Phoenix to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 52% versus a flight in the evening.

What is the cheapest day to fly from Phoenix to Knoxville?

Use this chart to determine the cheapest time to fly round-trip from Phoenix to Knoxville. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Phoenix to Knoxville flight should consider departing on Friday afternoons 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.

Rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

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 May 1, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta and United Airlines from Phoenix to Knoxville by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,972 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Allegiant Air
7.3
Good
734 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,972 reviews

Crew

8.5

Boarding

8.1

Overall

8.0

Comfort

7.9

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Phoenix 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?

    Located just 11.3 mi from the city center, Knoxville McGhee Tyson is the airport most travelers will use when flying to Knoxville from Phoenix. Booking flights from Phoenix to McGhee Tyson (TYS) should be relatively easy as there are 0 daily inbound flights from Phoenix from 5 different airlines.

  • What are the cheapest airlines flying from Phoenix to Knoxville round-trip?

    Our cheapest airline available from Phoenix to Knoxville is Allegiant Air. Our recent data shows that you can find tickets from as low as $136 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $238 and $240 round-trip. Allegiant Air is 59% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Phoenix to Knoxville one-way?

    For one-way options, check prices for Allegiant Air. According to our data, you can fly for as low as $100. Users have also found prices from $115 and $127 on American Airlines and Frontier, respectively.

  • What are the cheapest flights from Phoenix to Knoxville?

    While on average a flight from Phoenix to Knoxville is generally $179, our data shows the cheapest flight currently is $100. When looking at the most popular route, (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson), you can expect to pay $150 for that flight.

  • Can I find deals for flights from Phoenix to Knoxville that include hotel bookings?

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

  • How can I find direct flights from Phoenix to Knoxville?

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

  • Can I find deals for business class flights from Phoenix to Knoxville?

    Yes. Cheapflights offers flight deals from Phoenix 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 to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $296). Flying from Phoenix 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 Phoenix?

Book flights to Phoenix if you plan to visit one of these locations
Morristown
Cherokee
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Oak Ridge
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Top 5 airlines flying from Phoenix to Knoxville

Discover the top 5 airlines that operate flights from Phoenix 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$108Average$210FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$127Average$222FlexibilityNo cancel feeOn-time88%
United AirlinesCheapest$263Average$510FlexibilityNo cancel feeOn-time69%
DeltaCheapest$272Average$489FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$534FlexibilityNo cancel feeOn-time71%

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