Southwest® flights from Ontario/LA to Eugene from $119

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Low fares from Ontario/LA to Eugene

$

Ontario/LA (ONT)to

Eugene (EUG)
Depart: 08/21/2026

One-way

Basic

From
$119
Seen: 10 hrs ago

Ontario/LA (ONT)to

Eugene (EUG)
Depart: 08/28/2026

One-way

Basic

From
$119
Seen: 18 hrs ago

Ontario/LA (ONT)to

Eugene (EUG)
Depart: 08/20/2026

One-way

Basic

From
$119
Seen: 12 hrs ago

Ontario/LA (ONT)to

Eugene (EUG)
Depart: 08/18/2026

One-way

Basic

From
$119
Seen: 5 hrs ago

Ontario/LA (ONT)to

Eugene (EUG)
Depart: 08/22/2026

One-way

Basic

From
$119
Seen: 7 hrs ago

Ontario/LA (ONT)to

Eugene (EUG)
Depart: 09/05/2026

One-way

Basic

From
$145
Seen: 5 hrs ago

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Explore flights from Ontario/LA to Eugene

Aug 2026
From$119*
Seen: 10 hrs ago
One Way/Basic
Sep 2026
From$145*
Seen: 5 hrs ago
One Way/Basic
Oct 2026
From$163*
Seen: 20 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $119
cmp-daily-histogram-bars-legend-max-price-aria-label $372
Displaying fares for August-2026
  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    02

    Sun

    AUG

  • ONT–EUG, 08/03/2026: From $372
    03

    Mon

  • ONT–EUG, 08/04/2026: From $284
    04

    Tue

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    05

    Wed

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    06

    Thu

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    07

    Fri

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    08

    Sat

  • ONT–EUG, 08/09/2026: From $372
    09

    Sun

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    10

    Mon

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    11

    Tue

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    12

    Wed

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    13

    Thu

  • ONT–EUG, 08/14/2026: From $372
    14

    Fri

  • ONT–EUG, 08/15/2026: From $159
    15

    Sat

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

    Sun

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    17

    Mon

  • ONT–EUG, 08/18/2026: From $119
    18

    Tue

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

    Wed

  • ONT–EUG, 08/20/2026: From $119
    20

    Thu

  • ONT–EUG, 08/21/2026: From $119
    21

    Fri

  • ONT–EUG, 08/22/2026: From $119
    22

    Sat

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    24

    Mon

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    25

    Tue

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    26

    Wed

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    27

    Thu

  • ONT–EUG, 08/28/2026: From $119
    28

    Fri

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    29

    Sat

  • ONT–EUG, 08/30/2026: From $193
    30

    Sun

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    31

    Mon

  • ONT–EUG: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

    • Range$119-$372

    *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:
    Eugene Airport
    Distance:
    757 miles

    Route Information

    64† 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 64 weekly flights from Ontario/LA to Eugene on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA to Eugene with Southwest, check out our Low Fare Calendar.
    You can rent a car at Eugene Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Eugene—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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