Southwest® flights from Chicago (Midway) to Ontario/LA from $130

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Low fares from Chicago (Midway) to Ontario/LA

$

Chicago (Midway) (MDW)to

Ontario/LA (ONT)
Depart: 09/06/2026

One-way

Basic

From
$130
Seen: 1 hour ago

Chicago (Midway) (MDW)to

Ontario/LA (ONT)
Depart: 09/30/2026

One-way

Basic

From
$135
Seen: 19 hrs ago

Chicago (Midway) (MDW)to

Ontario/LA (ONT)
Depart: 10/03/2026

One-way

Basic

From
$135
Seen: 21 hrs ago

Chicago (Midway) (MDW)to

Ontario/LA (ONT)
Depart: 08/27/2026

One-way

Basic

From
$135
Seen: 2 hrs ago

Chicago (Midway) (MDW)to

Ontario/LA (ONT)
Depart: 09/01/2026

One-way

Basic

From
$135
Seen: 3 hrs ago

Chicago (Midway) (MDW)to

Ontario/LA (ONT)
Depart: 09/17/2026

One-way

Basic

From
$135
Seen: 3 hrs ago

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Explore flights from Chicago (Midway) to Ontario/LA

Aug 2026
From$135*
Seen: 2 hrs ago
One Way/Basic
Sep 2026
From$130*
Seen: 1 hour ago
One Way/Basic
Oct 2026
From$135*
Seen: 19 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $135
cmp-daily-histogram-bars-legend-max-price-aria-label $695
Displaying fares for August-2026
  • MDW–ONT: cmp-view-offers-disclaimer. Find Offers
    01

    Sat

    AUG

  • MDW–ONT, 08/02/2026: From $695
    02

    Sun

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

    Mon

  • MDW–ONT: cmp-view-offers-disclaimer. Find Offers
    04

    Tue

  • MDW–ONT, 08/05/2026: From $695
    05

    Wed

  • MDW–ONT, 08/06/2026: From $695
    06

    Thu

  • MDW–ONT, 08/07/2026: From $650
    07

    Fri

  • MDW–ONT, 08/08/2026: From $650
    08

    Sat

  • MDW–ONT, 08/09/2026: From $650
    09

    Sun

  • MDW–ONT, 08/10/2026: From $650
    10

    Mon

  • MDW–ONT, 08/11/2026: From $650
    11

    Tue

  • MDW–ONT, 08/12/2026: From $650
    12

    Wed

  • MDW–ONT, 08/13/2026: From $650
    13

    Thu

  • MDW–ONT, 08/14/2026: From $320
    14

    Fri

  • MDW–ONT, 08/15/2026: From $320
    15

    Sat

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

    Sun

  • MDW–ONT, 08/17/2026: From $320
    17

    Mon

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

    Tue

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

    Wed

  • MDW–ONT, 08/20/2026: From $320
    20

    Thu

  • MDW–ONT, 08/21/2026: From $182
    21

    Fri

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

    Sat

  • MDW–ONT, 08/23/2026: From $239
    23

    Sun

  • MDW–ONT, 08/24/2026: From $145
    24

    Mon

  • MDW–ONT, 08/25/2026: From $135
    25

    Tue

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

    Wed

  • MDW–ONT, 08/27/2026: From $135
    27

    Thu

  • MDW–ONT, 08/28/2026: From $182
    28

    Fri

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

    Sat

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

    Sun

  • MDW–ONT, 08/31/2026: From $145
    31

    Mon

    • Range$135-$695

    *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:
    Chicago Midway International Airport
    Arriving at:
    LA/Ontario International Airport
    Average flight time:
    4 hours 14 minutes
    Distance:
    1706 miles

    Route Information

    156† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 1‡ Nonstop flight on Sunday

    † 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

    The average flight time from Chicago (Midway) to Ontario/LA is 4 hours 14 minutes.
    There are 156 weekly flights from Chicago (Midway) to Ontario/LA on Southwest Airlines.
    Yes, Southwest flies nonstop from Chicago (Midway) to Ontario/LA once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Chicago (Midway) to Ontario/LA once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Chicago (Midway) 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 Chicago (Midway) 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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