Southwest® flights from Chicago-Midway to Seattle/Tacoma from $159

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Low fares from Chicago-Midway to Seattle/Tacoma

$

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 10/22/2026

One-way

Basic

From
$159
Seen: 23 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 12/10/2026

One-way

Basic

From
$159
Seen: 20 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 12/21/2026

One-way

Basic

From
$159
Seen: 5 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 12/02/2026

One-way

Basic

From
$159
Seen: 2 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 10/26/2026

One-way

Basic

From
$159
Seen: 5 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 11/19/2026

One-way

Basic

From
$159
Seen: 15 hrs ago

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Explore flights from Chicago-Midway to Seattle/Tacoma

Oct 2026
From$159*
Seen: 5 hrs ago
One Way/Basic
Nov 2026
From$159*
Seen: 15 hrs ago
One Way/Basic
Dec 2026
From$159*
Seen: 4 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $159
cmp-daily-histogram-bars-legend-max-price-aria-label $330
Displaying fares for October-2026
  • MDW–SEA: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

    OCT

  • MDW–SEA, 10/03/2026: From $294
    03

    Sat

  • MDW–SEA, 10/04/2026: From $322
    04

    Sun

  • MDW–SEA, 10/05/2026: From $322
    05

    Mon

  • MDW–SEA, 10/06/2026: From $330
    06

    Tue

  • MDW–SEA, 10/07/2026: From $304
    07

    Wed

  • MDW–SEA, 10/08/2026: From $322
    08

    Thu

  • MDW–SEA, 10/09/2026: From $322
    09

    Fri

  • MDW–SEA, 10/10/2026: From $294
    10

    Sat

  • MDW–SEA, 10/11/2026: From $261
    11

    Sun

  • MDW–SEA, 10/12/2026: From $322
    12

    Mon

  • MDW–SEA, 10/13/2026: From $304
    13

    Tue

  • MDW–SEA, 10/14/2026: From $294
    14

    Wed

  • MDW–SEA: cmp-view-offers-disclaimer. Find Offers
    15

    Thu

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

    Fri

  • MDW–SEA, 10/17/2026: From $254
    17

    Sat

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

    Sun

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

    Mon

  • MDW–SEA, 10/20/2026: From $254
    20

    Tue

  • MDW–SEA, 10/21/2026: From $254
    21

    Wed

  • MDW–SEA, 10/22/2026: From $159
    22

    Thu

  • MDW–SEA, 10/23/2026: From $180
    23

    Fri

  • MDW–SEA, 10/24/2026: From $159
    24

    Sat

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

    Sun

  • MDW–SEA, 10/26/2026: From $159
    26

    Mon

  • MDW–SEA, 10/27/2026: From $169
    27

    Tue

  • MDW–SEA, 10/28/2026: From $159
    28

    Wed

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

    Thu

  • MDW–SEA, 10/30/2026: From $180
    30

    Fri

  • MDW–SEA, 10/31/2026: From $174
    31

    Sat

  • MDW–SEA, 11/01/2026: From $209
    01

    Sun

    NOV

    • Range$159-$330

    *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:
    Seattle/Tacoma International Airport
    Average flight time:
    4 hours 34 minutes
    Distance:
    1733 miles

    Route Information

    148† 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 Seattle/Tacoma is 4 hours 34 minutes.
    There are 148 weekly flights from Chicago (Midway) to Seattle/Tacoma on Southwest Airlines.
    Yes, Southwest flies nonstop from Chicago (Midway) to Seattle/Tacoma once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Chicago (Midway) to Seattle/Tacoma once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Chicago (Midway) to Seattle/Tacoma with Southwest, check out our Low Fare Calendar.
    You can rent a car at Seattle/Tacoma International Airport book yours with your flight.
    Yes! Flights from Chicago (Midway) to Seattle/Tacoma—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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