Southwest® flights from Ontario/LA to Chicago-Midway from $120

Promo Code

Low fares from Ontario/LA to Chicago-Midway

$

Ontario/LA (ONT)to

Chicago-Midway (MDW)
Depart: 11/14/2026

One-way

Basic

From
$120
Seen: 20 hrs ago

Ontario/LA (ONT)to

Chicago-Midway (MDW)
Depart: 01/09/2027

One-way

Basic

From
$130
Seen: 21 hrs ago

Ontario/LA (ONT)to

Chicago-Midway (MDW)
Depart: 12/07/2026

One-way

Basic

From
$130
Seen: 19 hrs ago

Ontario/LA (ONT)to

Chicago-Midway (MDW)
Depart: 01/11/2027

One-way

Basic

From
$130
Seen: 22 hrs ago

Ontario/LA (ONT)to

Chicago-Midway (MDW)
Depart: 11/07/2026

One-way

Basic

From
$135
Seen: 15 hrs ago

Ontario/LA (ONT)to

Chicago-Midway (MDW)
Depart: 01/08/2027

One-way

Basic

From
$140
Seen: 21 hrs ago

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Explore flights from Ontario/LA to Chicago-Midway

Oct 2026
From$159*
Seen: 18 hrs ago
One Way/Basic
Nov 2026
From$120*
Seen: 20 hrs ago
One Way/Basic
Dec 2026
From$130*
Seen: 19 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $329
Displaying fares for October-2026
  • ONT–MDW, 10/03/2026: From $279
    03

    Sat

    OCT

  • ONT–MDW, 10/04/2026: From $159
    04

    Sun

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

    Mon

  • ONT–MDW, 10/06/2026: From $279
    06

    Tue

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

    Wed

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

    Thu

  • ONT–MDW, 10/09/2026: From $329
    09

    Fri

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

    Sat

  • ONT–MDW, 10/11/2026: From $279
    11

    Sun

  • ONT–MDW, 10/12/2026: From $279
    12

    Mon

  • ONT–MDW, 10/13/2026: From $279
    13

    Tue

  • ONT–MDW, 10/14/2026: From $279
    14

    Wed

  • ONT–MDW, 10/15/2026: From $289
    15

    Thu

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

    Fri

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

    Sat

  • ONT–MDW, 10/18/2026: From $170
    18

    Sun

  • ONT–MDW, 10/19/2026: From $279
    19

    Mon

  • ONT–MDW: cmp-view-offers-disclaimer. Find Offers
    20

    Tue

  • ONT–MDW, 10/21/2026: From $279
    21

    Wed

  • ONT–MDW, 10/22/2026: From $279
    22

    Thu

  • ONT–MDW, 10/23/2026: From $195
    23

    Fri

  • ONT–MDW, 10/24/2026: From $195
    24

    Sat

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

    Sun

  • ONT–MDW, 10/26/2026: From $195
    26

    Mon

  • ONT–MDW, 10/27/2026: From $195
    27

    Tue

  • ONT–MDW, 10/28/2026: From $195
    28

    Wed

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

    Thu

  • ONT–MDW, 10/30/2026: From $195
    30

    Fri

  • ONT–MDW, 10/31/2026: From $195
    31

    Sat

  • ONT–MDW, 11/01/2026: From $249
    01

    Sun

    NOV

  • ONT–MDW, 11/02/2026: From $195
    02

    Mon

    • Range$159-$329

    *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:
    Chicago Midway International Airport
    Average flight time:
    3 hours 50 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 Ontario/LA to Chicago (Midway) is 3 hours 50 minutes.
    There are 156 weekly flights from Ontario/LA to Chicago (Midway) on Southwest Airlines.
    Yes, Southwest flies nonstop from Ontario/LA to Chicago (Midway) once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Ontario/LA to Chicago (Midway) once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Ontario/LA to Chicago (Midway) with Southwest, check out our Low Fare Calendar.
    You can rent a car at Chicago Midway International Airport book yours with your flight.
    Yes! Flights from Ontario/LA to Chicago (Midway)—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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