Southwest® flights from Knoxville to Phoenix from $165

Promo Code

Low fares from Knoxville to Phoenix

$

Knoxville (TYS)to

Phoenix (PHX)
Depart: 05/20/2026

One-way

Basic

From
$165

Low fares from Knoxville to Phoenix

$

Knoxville (TYS)to

Phoenix (PHX)
Depart: 05/20/2026

One-way

Basic

From
$165
Seen: 23 hrs ago

Knoxville (TYS)to

Phoenix (PHX)
Depart: 04/29/2026

One-way

Basic

From
$165
Seen: 18 hrs ago

Knoxville (TYS)to

Phoenix (PHX)
Depart: 04/25/2026

One-way

Basic

From
$165
Seen: 1 hour ago

Knoxville (TYS)to

Phoenix (PHX)
Depart: 04/22/2026

One-way

Basic

From
$165
Seen: 1 hour ago

Knoxville (TYS)to

Phoenix (PHX)
Depart: 06/03/2026

One-way

Basic

From
$165
Seen: 56 minutes ago

Knoxville (TYS)to

Phoenix (PHX)
Depart: 04/15/2026

One-way

Basic

From
$165
Seen: 23 hrs ago

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Explore flights from Knoxville to Phoenix

Mar 2026
From$337*
Seen: 8 hrs ago
One Way/Basic
Apr 2026
From$165*
Seen: 23 hrs ago
One Way/Basic
May 2026
From$165*
Seen: 23 hrs ago
One Way/Basic
$165
$534
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    • Range$165-$534

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Mc Ghee Tyson Airport
    Arriving at:
    Sky Harbor International Airport
    Distance:
    1599 miles

    Route Information

    76† Weekly flights

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    There are 76 weekly flights from Knoxville to Phoenix on Southwest Airlines.
    To find the lowest fares by day and time to fly Knoxville to Phoenix with Southwest, check out our Low Fare Calendar.
    You can rent a car at Sky Harbor International Airport book yours with your flight.
    Yes! Flights from Knoxville to Phoenix—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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