Southwest® flights from Austin to Knoxville from $142

Promo Code

Low fares from Austin to Knoxville

$

Austin (AUS)to

Knoxville (TYS)
Depart: 10/24/2026

One-way

Basic

From
$142

Low fares from Austin to Knoxville

$

Austin (AUS)to

Knoxville (TYS)
Depart: 10/24/2026

One-way

Basic

From
$142
Seen: 14 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 12/15/2026

One-way

Basic

From
$147
Seen: 23 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 11/10/2026

One-way

Basic

From
$147
Seen: 8 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 11/03/2026

One-way

Basic

From
$147
Seen: 17 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 11/17/2026

One-way

Basic

From
$147
Seen: 23 hrs ago

Austin (AUS)to

Knoxville (TYS)
Depart: 11/11/2026

One-way

Basic

From
$147
Seen: 8 hrs ago

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Explore flights from Austin to Knoxville

Oct 2026
From$142*
Seen: 14 hrs ago
One Way/Basic
Nov 2026
From$147*
Seen: 17 hrs ago
One Way/Basic
Dec 2026
From$147*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $142
cmp-daily-histogram-bars-legend-max-price-aria-label $484
Displaying fares for October-2026
  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

    OCT

  • AUS–TYS, 10/03/2026: From $374
    03

    Sat

  • AUS–TYS, 10/04/2026: From $374
    04

    Sun

  • AUS–TYS, 10/05/2026: From $369
    05

    Mon

  • AUS–TYS, 10/06/2026: From $374
    06

    Tue

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    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 $359
    10

    Sat

  • AUS–TYS, 10/11/2026: From $433
    11

    Sun

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • AUS–TYS, 10/13/2026: From $429
    13

    Tue

  • AUS–TYS, 10/14/2026: From $359
    14

    Wed

  • AUS–TYS, 10/15/2026: From $402
    15

    Thu

  • AUS–TYS, 10/16/2026: From $402
    16

    Fri

  • AUS–TYS, 10/17/2026: From $175
    17

    Sat

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    18

    Sun

  • AUS–TYS, 10/19/2026: From $225
    19

    Mon

  • AUS–TYS, 10/20/2026: From $162
    20

    Tue

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    21

    Wed

  • AUS–TYS, 10/22/2026: From $271
    22

    Thu

  • AUS–TYS, 10/23/2026: From $271
    23

    Fri

  • AUS–TYS, 10/24/2026: From $142
    24

    Sat

  • AUS–TYS, 10/25/2026: From $224
    25

    Sun

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    26

    Mon

  • AUS–TYS: cmp-view-offers-disclaimer. Find Offers
    27

    Tue

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

    Wed

  • AUS–TYS, 10/29/2026: From $200
    29

    Thu

  • AUS–TYS, 10/30/2026: From $161
    30

    Fri

  • AUS–TYS, 10/31/2026: From $152
    31

    Sat

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

    Sun

    NOV

    • Range$142-$484

    *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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