Southwest® flights from Austin to Knoxville from $164

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Low fares from Austin to Knoxville

$

Austin (AUS)to

Knoxville (TYS)
Depart: 10/03/2026

One-way

Basic

From
$164

Low fares from Austin to Knoxville

$

Austin (AUS)to

Knoxville (TYS)
Depart: 10/03/2026

One-way

Basic

From
$164
Seen: 18 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 10/17/2026

One-way

Basic

From
$164
Seen: 10 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 11/11/2026

One-way

Basic

From
$169
Seen: 14 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 11/03/2026

One-way

Basic

From
$169
Seen: 22 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 12/11/2026

One-way

Basic

From
$174
Seen: 9 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 11/07/2026

One-way

Basic

From
$174
Seen: 22 hrs ago

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Explore flights from Austin to Knoxville

Sep 2026
From$254*
Seen: 19 hrs ago
One Way/Basic
Oct 2026
From$164*
Seen: 18 hrs ago
One Way/Basic
Nov 2026
From$169*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $164
cmp-daily-histogram-bars-legend-max-price-aria-label $489
Displaying fares for September-2026
  • AUS–TYS, 09/12/2026: From $374
    12

    Sat

    SEP

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

  • AUS–TYS, 09/14/2026: From $374
    14

    Mon

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    16

    Wed

  • AUS–TYS, 09/17/2026: From $374
    17

    Thu

  • AUS–TYS, 09/18/2026: From $364
    18

    Fri

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

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    20

    Sun

  • AUS–TYS, 09/21/2026: From $359
    21

    Mon

  • AUS–TYS, 09/22/2026: From $359
    22

    Tue

  • AUS–TYS, 09/23/2026: From $359
    23

    Wed

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    24

    Thu

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    25

    Fri

  • AUS–TYS, 09/26/2026: From $254
    26

    Sat

  • AUS–TYS, 09/27/2026: From $254
    27

    Sun

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

  • AUS–TYS, 09/30/2026: From $254
    30

    Wed

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • AUS–TYS, 10/02/2026: From $294
    02

    Fri

  • AUS–TYS, 10/03/2026: From $164
    03

    Sat

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    04

    Sun

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    05

    Mon

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    06

    Tue

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    07

    Wed

  • AUS–TYS, 10/08/2026: From $428
    08

    Thu

  • AUS–TYS, 10/09/2026: From $484
    09

    Fri

  • AUS–TYS, 10/10/2026: From $320
    10

    Sat

  • AUS–TYS, 10/11/2026: From $489
    11

    Sun

    • Range$164-$489

    *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:
    Austin-Bergstrom International Airport
    Arriving at:
    Mc Ghee Tyson Airport
    Distance:
    882 miles

    Route Information

    74† 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 74 weekly flights from Austin to Knoxville on Southwest Airlines.
    To find the lowest fares by day and time to fly Austin to Knoxville with Southwest, check out our Low Fare Calendar.
    You can rent a car at Mc Ghee Tyson Airport book yours with your flight.
    Yes! Flights from Austin to Knoxville—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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