Southwest® flights from Ontario/LA to Knoxville from $188

Promo Code

Low fares from Ontario/LA to Knoxville

$

Ontario/LA (ONT)to

Knoxville (TYS)
Depart: 12/09/2026

One-way

Basic

From
$183

Low fares from Ontario/LA to Knoxville

$

Ontario/LA (ONT)to

Knoxville (TYS)
Depart: 12/09/2026

One-way

Basic

From
$183
Seen: 13 hrs ago

Ontario/LA (ONT)to

Knoxville (TYS)
Depart: 10/28/2026

One-way

Basic

From
$188
Seen: 18 hrs ago

Ontario/LA (ONT)to

Knoxville (TYS)
Depart: 12/01/2026

One-way

Basic

From
$215
Seen: 11 hrs ago

Ontario/LA (ONT)to

Knoxville (TYS)
Depart: 12/03/2026

One-way

Basic

From
$215
Seen: 6 hrs ago

Ontario/LA (ONT)to

Knoxville (TYS)
Depart: 10/26/2026

One-way

Basic

From
$220
Seen: 12 hrs ago

Ontario/LA (ONT)to

Knoxville (TYS)
Depart: 10/24/2026

One-way

Basic

From
$220
Seen: 4 hrs ago

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Explore flights from Ontario/LA to Knoxville

Sep 2026
From$269*
Seen: 22 hrs ago
One Way/Basic
Oct 2026
From$188*
Seen: 18 hrs ago
One Way/Basic
Nov 2026
No result for this month.
cmp-daily-histogram-bars-legend-min-price-aria-label $269
cmp-daily-histogram-bars-legend-max-price-aria-label $524
Displaying fares for September-2026
  • ONT–TYS: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

  • ONT–TYS, 09/02/2026: From $317
    02

    Wed

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    03

    Thu

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    04

    Fri

  • ONT–TYS, 09/05/2026: From $317
    05

    Sat

  • ONT–TYS, 09/06/2026: From $340
    06

    Sun

  • ONT–TYS: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

  • ONT–TYS, 09/08/2026: From $340
    08

    Tue

  • ONT–TYS, 09/09/2026: From $305
    09

    Wed

  • ONT–TYS, 09/10/2026: From $283
    10

    Thu

  • ONT–TYS, 09/11/2026: From $283
    11

    Fri

  • ONT–TYS, 09/12/2026: From $292
    12

    Sat

  • ONT–TYS, 09/13/2026: From $324
    13

    Sun

  • ONT–TYS, 09/14/2026: From $341
    14

    Mon

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

    Tue

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

    Wed

  • ONT–TYS, 09/17/2026: From $524
    17

    Thu

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

    Fri

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

    Sat

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    20

    Sun

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

    Mon

  • ONT–TYS: cmp-view-offers-disclaimer. Find Offers
    22

    Tue

  • ONT–TYS, 09/23/2026: From $269
    23

    Wed

  • ONT–TYS, 09/24/2026: From $428
    24

    Thu

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    25

    Fri

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    26

    Sat

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    27

    Sun

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    28

    Mon

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    29

    Tue

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    30

    Wed

    • Range$269-$524

    *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:
    LA/Ontario International Airport
    Arriving at:
    Mc Ghee Tyson Airport
    Distance:
    1902 miles

    Route Information

    35† 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 35 weekly flights from Ontario/LA to Knoxville on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA 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 Ontario/LA 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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