Southwest® flights from Knoxville to Austin from $133

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Low fares from Knoxville to Austin

$

Knoxville (TYS)to

Austin (AUS)
Depart: 12/14/2026

One-way

Basic

From
$133

Low fares from Knoxville to Austin

$

Knoxville (TYS)to

Austin (AUS)
Depart: 12/14/2026

One-way

Basic

From
$133
Seen: 23 hrs ago

Knoxville (TYS)to

Austin (AUS)
Depart: 01/13/2027

One-way

Basic

From
$152
Seen: 17 hrs ago

Knoxville (TYS)to

Austin (AUS)
Depart: 11/21/2026

One-way

Basic

From
$152
Seen: 3 hrs ago

Knoxville (TYS)to

Austin (AUS)
Depart: 12/08/2026

One-way

Basic

From
$152
Seen: 20 hrs ago

Knoxville (TYS)to

Austin (AUS)
Depart: 12/31/2026

One-way

Basic

From
$152
Seen: 12 hrs ago

Knoxville (TYS)to

Austin (AUS)
Depart: 12/21/2026

One-way

Basic

From
$152
Seen: 9 hrs ago

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Explore flights from Knoxville to Austin

Nov 2026
From$152*
Seen: 3 hrs ago
One Way/Basic
Dec 2026
From$133*
Seen: 23 hrs ago
One Way/Basic
Jan 2027
From$152*
Seen: 17 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $152
cmp-daily-histogram-bars-legend-max-price-aria-label $438
Displaying fares for November-2026
  • TYS–AUS, 11/01/2026: From $384
    01

    Sun

    NOV

  • TYS–AUS, 11/02/2026: From $384
    02

    Mon

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    03

    Tue

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    04

    Wed

  • TYS–AUS, 11/05/2026: From $384
    05

    Thu

  • TYS–AUS, 11/06/2026: From $384
    06

    Fri

  • TYS–AUS, 11/07/2026: From $369
    07

    Sat

  • TYS–AUS, 11/08/2026: From $438
    08

    Sun

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    09

    Mon

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    10

    Tue

  • TYS–AUS, 11/11/2026: From $369
    11

    Wed

  • TYS–AUS, 11/12/2026: From $369
    12

    Thu

  • TYS–AUS, 11/13/2026: From $369
    13

    Fri

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    14

    Sat

  • TYS–AUS, 11/15/2026: From $220
    15

    Sun

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    16

    Mon

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    17

    Tue

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    18

    Wed

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    19

    Thu

  • TYS–AUS, 11/20/2026: From $264
    20

    Fri

  • TYS–AUS, 11/21/2026: From $152
    21

    Sat

  • TYS–AUS, 11/22/2026: From $258
    22

    Sun

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    23

    Mon

  • TYS–AUS, 11/24/2026: From $329
    24

    Tue

  • TYS–AUS, 11/25/2026: From $258
    25

    Wed

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    26

    Thu

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    27

    Fri

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    28

    Sat

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    29

    Sun

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    30

    Mon

    • Range$152-$438

    *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:
    Austin-Bergstrom International Airport
    Distance:
    882 miles

    Questions we hear the most

    There are 76 weekly flights from Knoxville to Austin on Southwest Airlines.
    To find the lowest fares by day and time to fly Knoxville to Austin with Southwest, check out our Low Fare Calendar.
    You can rent a car at Austin-Bergstrom International Airport book yours with your flight.
    Yes! Flights from Knoxville to Austin—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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