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

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Low fares from Ontario/LA to Kansas City

$

Ontario/LA (ONT)to

Kansas City (MCI)
Depart: 11/09/2026

One-way

Basic

From
$186
Seen: 21 hrs ago

Ontario/LA (ONT)to

Kansas City (MCI)
Depart: 10/14/2026

One-way

Basic

From
$186
Seen: 17 hrs ago

Ontario/LA (ONT)to

Kansas City (MCI)
Depart: 12/15/2026

One-way

Basic

From
$186
Seen: 9 hrs ago

Ontario/LA (ONT)to

Kansas City (MCI)
Depart: 11/05/2026

One-way

Basic

From
$186
Seen: 22 hrs ago

Ontario/LA (ONT)to

Kansas City (MCI)
Depart: 10/13/2026

One-way

Basic

From
$186
Seen: 18 hrs ago

Ontario/LA (ONT)to

Kansas City (MCI)
Depart: 11/10/2026

One-way

Basic

From
$186
Seen: 22 hrs ago

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Explore flights from Ontario/LA to Kansas City

Sep 2026
From$279*
Seen: 8 hrs ago
One Way/Basic
Oct 2026
From$186*
Seen: 18 hrs ago
One Way/Basic
Nov 2026
From$186*
Seen: 22 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $186
cmp-daily-histogram-bars-legend-max-price-aria-label $535
Displaying fares for September-2026
  • ONT–MCI, 09/11/2026: From $372
    11

    Fri

    SEP

  • ONT–MCI, 09/12/2026: From $280
    12

    Sat

  • ONT–MCI, 09/13/2026: From $535
    13

    Sun

  • ONT–MCI, 09/14/2026: From $372
    14

    Mon

  • ONT–MCI, 09/15/2026: From $289
    15

    Tue

  • ONT–MCI, 09/16/2026: From $279
    16

    Wed

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

    Thu

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

    Fri

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

    Sat

  • ONT–MCI, 09/20/2026: From $367
    20

    Sun

  • ONT–MCI, 09/21/2026: From $372
    21

    Mon

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

    Tue

  • ONT–MCI, 09/23/2026: From $279
    23

    Wed

  • ONT–MCI, 09/24/2026: From $299
    24

    Thu

  • ONT–MCI, 09/25/2026: From $299
    25

    Fri

  • ONT–MCI: cmp-view-offers-disclaimer. Find Offers
    26

    Sat

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

    Sun

  • ONT–MCI: cmp-view-offers-disclaimer. Find Offers
    28

    Mon

  • ONT–MCI, 09/29/2026: From $279
    29

    Tue

  • ONT–MCI: cmp-view-offers-disclaimer. Find Offers
    30

    Wed

  • ONT–MCI, 10/01/2026: From $203
    01

    Thu

    OCT

  • ONT–MCI, 10/02/2026: From $203
    02

    Fri

  • ONT–MCI: cmp-view-offers-disclaimer. Find Offers
    03

    Sat

  • ONT–MCI, 10/04/2026: From $259
    04

    Sun

  • ONT–MCI, 10/05/2026: From $221
    05

    Mon

  • ONT–MCI: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

  • ONT–MCI, 10/07/2026: From $203
    07

    Wed

  • ONT–MCI: cmp-view-offers-disclaimer. Find Offers
    08

    Thu

  • ONT–MCI, 10/09/2026: From $203
    09

    Fri

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

    Sat

    • Range$186-$535

    *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:
    Kansas City International Airport
    Distance:
    1318 miles

    Route Information

    153† 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 153 weekly flights from Ontario/LA to Kansas City on Southwest Airlines.
    To find the lowest fares by day and time to fly Ontario/LA to Kansas City with Southwest, check out our Low Fare Calendar.
    You can rent a car at Kansas City International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Kansas City—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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