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Knoxville

$75+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — TYS
Aug 17 — Aug 241
Mon 8/17
Mon 8/24
1 adult, Economy
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Cheapflights Tip: The best prices from Phoenix to Knoxville McGhee Tyson are usually found in February or September, booked 73 days in advance, depart on a Monday or Wednesday and return on a Thursday

Cheap 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 July 18, 2026.

This CheapOair deal was found by Cheapflights users on 7/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:01 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
-
PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/13$137
This CheapOair deal was found by Cheapflights users on 7/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:51 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
-
PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/17$146
This Cheapflightsfares deal was found by Cheapflights users on 7/13. 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 11/14:43 pm
PHX
-
TYS
Nonstop3h 27m
Allegiant Air
Sun 11/812:29 pm
TYS
-
PHX
Nonstop4h 01m
Allegiant Air
Deal found 7/13$161
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 8/135:01 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Sun 8/162:51 pm
TYS
-
PHX
Nonstop4h 10m
Allegiant Air
Deal found 7/15$167
This Cheapflightsfares deal was found by Cheapflights users on 7/16. 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 8/94:51 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Thu 8/133:01 pm
TYS
-
PHX
Nonstop4h 10m
Allegiant Air
Deal found 7/16$170
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 7/304:20 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Thu 8/63:01 pm
TYS
-
PHX
Nonstop4h 10m
Allegiant Air
Deal found 7/15$177
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 9/34:22 pm
PHX
-
TYS
Nonstop3h 31m
Allegiant Air
Sun 9/62:34 pm
TYS
-
PHX
Nonstop3h 58m
Allegiant Air
Deal found 7/15$178
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 8/234:16 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Sun 8/302:39 pm
TYS
-
PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/15$179
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Sun 9/64:22 pm
PHX
-
TYS
Nonstop3h 31m
Allegiant Air
Thu 9/102:34 pm
TYS
-
PHX
Nonstop3h 58m
Allegiant Air
Deal found 7/15$181
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Sun 8/164:51 pm
PHX
-
TYS
Nonstop3h 36m
Allegiant Air
Thu 8/202:39 pm
TYS
-
PHX
Nonstop3h 47m
Allegiant Air
Deal found 7/15$190

Find 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 July 18, 2026.

Round-trip from

$137
(CheapOair)

One-way from

$75
(Cheapflightsfares)

Popular in

April

Cheapest in

February

Average price

$319
From Phoenix to Knoxville McGhee Tyson
Search Deals
One-way flight from Phoenix to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 18, 2026.
Use the filters below to find and compare flights from Phoenix to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 12/10

2:15 pm-11:46 pm

1 stop7h 31m

Knoxville McGhee Tyson

Tue 12/15

7:00 am-1:32 pm

1 stop8h 32m

$311

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 10/24

11:35 pm-11:01 am

1 stop8h 26m

Knoxville McGhee Tyson

Fri 10/30

6:21 pm-10:18 pm

1 stop6h 57m

$311
Quickest round-trip

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 8/20

1:18 pm-11:52 pm

1 stop7h 34m

Knoxville McGhee Tyson

Mon 8/24

5:40 am-9:06 am

1 stop6h 26m

$311

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Wed 8/12

12:15 pm-9:45 pm

1 stop6h 30m

Knoxville McGhee Tyson

Wed 8/19

2:21 pm-8:37 pm

2 stops9h 16m

$316

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Mon 11/16

5:15 am-2:00 pm

1 stop6h 45m

Knoxville McGhee Tyson

Thu 11/19

4:10 pm-9:35 pm

1 stop7h 25m

$335

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 8/22

6:15 am-5:40 pm

2 stops8h 25m

Knoxville McGhee Tyson

Tue 8/25

1:55 pm-6:55 pm

2 stops8h 00m

$362

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Mon 8/17

7:55 am-6:35 pm

2 stops7h 40m

Knoxville McGhee Tyson

Sat 9/12

6:50 am-12:40 pm

2 stops8h 50m

$380

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sun 12/13

6:05 am-3:00 pm

1 stop6h 55m

Knoxville McGhee Tyson

Fri 12/25

4:10 pm-10:30 pm

1 stop8h 20m

$414

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Thu 8/20

12:15 pm-9:45 pm

1 stop6h 30m

Knoxville McGhee Tyson

Mon 8/24

7:00 am-6:00 pm

2 stops14h 00m

$416

PhoenixKnoxville

PHX - TYS

PHXTYS

Phoenix Sky Harbor Intl

Sat 11/7

7:32 pm-9:50 am

2 stops12h 18m

Knoxville McGhee Tyson

Tue 11/10

5:45 am-3:27 pm

2 stops11h 42m

$421

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/13

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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

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

Currently, February is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $245). Flying from Phoenix to Knoxville in April is currently the most expensive (average of $424). 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.

How much does it cost to fly round-trip from Phoenix to Knoxville?

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

Booking 54 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.

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 18, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAllegiant Air from Phoenix to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Delta
7.8
Good
8,479 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
United Airlines
7.4
Good
10,005 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Allegiant Air
7.3
Good
683 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
American Airlines
7.1
Good
11,829 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional
Frontier
5.6
Fair
2,792 reviews
Delta
7.8
Good
8,479 reviews

Boarding

8.1

Comfort

7.8

Overall

7.8

Food

7.2

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 6 different airlines.

  • How long is the flight from Phoenix to Knoxville?

    For as low as $316, Delta can have you in Knoxville from Phoenix in 6h 30m. The distance from Phoenix to Knoxville 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 Phoenix to Knoxville round-trip?

    Our cheapest airline available from Phoenix to Knoxville is Frontier. Our recent data shows that you can find tickets from as low as $90 on this airline. Additional options worth looking into are Allegiant Air and Delta, starting at $121 and $199 round-trip. Frontier is 71% 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 $72. Users have also found prices from $112 and $156 on Frontier and American Airlines, respectively.

  • What are the cheapest flights from Phoenix to Knoxville?

    While on average a flight from Phoenix to Knoxville is generally $205, our data shows the cheapest flight currently is $73. When looking at the most popular route, (Phoenix Sky Harbor Intl - Knoxville McGhee Tyson), you can expect to pay $146 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, February is the cheapest month in which you can book a flight from Phoenix to Knoxville (average of $245). Flying from Phoenix to Knoxville in April is currently the most expensive (average of $424). 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
Cherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa

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Top 6 airlines flying from Phoenix to Knoxville

Discover the top 6 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 July 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$90Average$243FlexibilityNo cancel feeOn-time62%
Allegiant AirCheapest$121Average$240FlexibilityNo cancel feeOn-time88%
DeltaCheapest$199Average$453FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$234Average$403FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$250Average$446FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$350Average$481FlexibilityNo cancel feeOn-time63%

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