Southwest® flights from Chicago-Midway to Ontario/LA from $150

Promo Code

Low fares from Chicago-Midway to Ontario/LA

$

Chicago-Midway (MDW)to

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

One-way

Basic

From
$150
Seen: 9 hrs ago

Chicago-Midway (MDW)to

Ontario/LA (ONT)
Depart: 12/18/2026

One-way

Basic

From
$150
Seen: 15 hrs ago

Chicago-Midway (MDW)to

Ontario/LA (ONT)
Depart: 12/24/2026

One-way

Basic

From
$150
Seen: 11 hrs ago

Chicago-Midway (MDW)to

Ontario/LA (ONT)
Depart: 12/10/2026

One-way

Basic

From
$195
Seen: 18 hrs ago

Chicago-Midway (MDW)to

Ontario/LA (ONT)
Depart: 12/31/2026

One-way

Basic

From
$195
Seen: 3 hrs ago

Chicago-Midway (MDW)to

Ontario/LA (ONT)
Depart: 12/11/2026

One-way

Basic

From
$195
Seen: 10 hrs ago

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Explore flights from Chicago-Midway to Ontario/LA

Oct 2026
From$195*
Seen: 19 hrs ago
One Way/Basic
Nov 2026
From$195*
Seen: 6 hrs ago
One Way/Basic
Dec 2026
From$150*
Seen: 15 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $195
cmp-daily-histogram-bars-legend-max-price-aria-label $449
Displaying fares for October-2026
  • MDW–ONT, 10/04/2026: From $289
    04

    Sun

    OCT

  • MDW–ONT, 10/05/2026: From $289
    05

    Mon

  • MDW–ONT, 10/06/2026: From $284
    06

    Tue

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

    Wed

  • MDW–ONT, 10/08/2026: From $289
    08

    Thu

  • MDW–ONT, 10/09/2026: From $449
    09

    Fri

  • MDW–ONT: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

  • MDW–ONT, 10/11/2026: From $289
    11

    Sun

  • MDW–ONT, 10/12/2026: From $449
    12

    Mon

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

    Tue

  • MDW–ONT: cmp-view-offers-disclaimer. Find Offers
    14

    Wed

  • MDW–ONT, 10/15/2026: From $279
    15

    Thu

  • MDW–ONT, 10/16/2026: From $279
    16

    Fri

  • MDW–ONT, 10/17/2026: From $279
    17

    Sat

  • MDW–ONT, 10/18/2026: From $289
    18

    Sun

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

    Mon

  • MDW–ONT, 10/20/2026: From $284
    20

    Tue

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

    Wed

  • MDW–ONT, 10/22/2026: From $289
    22

    Thu

  • MDW–ONT, 10/23/2026: From $289
    23

    Fri

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

    Sat

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

    Sun

  • MDW–ONT, 10/26/2026: From $259
    26

    Mon

  • MDW–ONT, 10/27/2026: From $249
    27

    Tue

  • MDW–ONT, 10/28/2026: From $249
    28

    Wed

  • MDW–ONT, 10/29/2026: From $195
    29

    Thu

  • MDW–ONT, 10/30/2026: From $249
    30

    Fri

  • MDW–ONT, 10/31/2026: From $249
    31

    Sat

  • MDW–ONT, 11/01/2026: From $259
    01

    Sun

    NOV

  • MDW–ONT, 11/02/2026: From $259
    02

    Mon

  • MDW–ONT, 11/03/2026: From $239
    03

    Tue

    • Range$195-$449

    *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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