Southwest® flights from Kansas City to Ontario/LA from $186

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Low fares from Kansas City to Ontario/LA

$

Kansas City (MCI)to

Ontario/LA (ONT)
Depart: 01/06/2027

One-way

Basic

From
$186
Seen: 22 hrs ago

Kansas City (MCI)to

Ontario/LA (ONT)
Depart: 11/23/2026

One-way

Basic

From
$186
Seen: 10 hrs ago

Kansas City (MCI)to

Ontario/LA (ONT)
Depart: 11/21/2026

One-way

Basic

From
$186
Seen: 10 hrs ago

Kansas City (MCI)to

Ontario/LA (ONT)
Depart: 11/09/2026

One-way

Basic

From
$186
Seen: 7 hrs ago

Kansas City (MCI)to

Ontario/LA (ONT)
Depart: 01/09/2027

One-way

Basic

From
$186
Seen: 21 hrs ago

Kansas City (MCI)to

Ontario/LA (ONT)
Depart: 11/11/2026

One-way

Basic

From
$186
Seen: 17 hrs ago

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Explore flights from Kansas City to Ontario/LA

Oct 2026
From$186*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $186
cmp-daily-histogram-bars-legend-max-price-aria-label $481
Displaying fares for October-2026
  • MCI–ONT, 10/02/2026: From $382
    02

    Fri

    OCT

  • MCI–ONT, 10/03/2026: From $290
    03

    Sat

  • MCI–ONT, 10/04/2026: From $460
    04

    Sun

  • MCI–ONT, 10/05/2026: From $382
    05

    Mon

  • MCI–ONT, 10/06/2026: From $289
    06

    Tue

  • MCI–ONT, 10/07/2026: From $289
    07

    Wed

  • MCI–ONT, 10/08/2026: From $382
    08

    Thu

  • MCI–ONT, 10/09/2026: From $481
    09

    Fri

  • MCI–ONT, 10/10/2026: From $289
    10

    Sat

  • MCI–ONT: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

  • MCI–ONT: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

  • MCI–ONT, 10/13/2026: From $289
    13

    Tue

  • MCI–ONT, 10/14/2026: From $289
    14

    Wed

  • MCI–ONT, 10/15/2026: From $309
    15

    Thu

  • MCI–ONT, 10/16/2026: From $309
    16

    Fri

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

    Sat

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

    Sun

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

    Mon

  • MCI–ONT, 10/20/2026: From $289
    20

    Tue

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

    Wed

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

    Thu

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    23

    Fri

  • MCI–ONT, 10/24/2026: From $186
    24

    Sat

  • MCI–ONT, 10/25/2026: From $269
    25

    Sun

  • MCI–ONT, 10/26/2026: From $213
    26

    Mon

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

    Tue

  • MCI–ONT, 10/28/2026: From $186
    28

    Wed

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

    Thu

  • MCI–ONT, 10/30/2026: From $213
    30

    Fri

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    31

    Sat

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

    Sun

    NOV

    • Range$186-$481

    *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:
    Kansas City International Airport
    Arriving at:
    LA/Ontario International Airport
    Distance:
    1318 miles

    Route Information

    151† 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 151 weekly flights from Kansas City to Ontario/LA on Southwest Airlines.
    To find the lowest fares by day and time to fly Kansas City to Ontario/LA with Southwest, check out our Low Fare Calendar.
    You can rent a car at LA/Ontario International Airport book yours with your flight.
    Yes! Flights from Kansas City to Ontario/LA—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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