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: 11/17/2026

One-way

Basic

From
$159
Seen: 15 hrs ago

Chicago-Midway (MDW)to

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

One-way

Basic

From
$159
Seen: 15 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 11/03/2026

One-way

Basic

From
$159
Seen: 16 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 11/18/2026

One-way

Basic

From
$159
Seen: 15 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 10/27/2026

One-way

Basic

From
$159
Seen: 21 hrs ago

Chicago-Midway (MDW)to

Seattle/Tacoma (SEA)
Depart: 10/21/2026

One-way

Basic

From
$159
Seen: 21 hrs ago

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Explore flights from Chicago-Midway to Seattle/Tacoma

Sep 2026
From$234*
Seen: 6 hrs ago
One Way/Basic
Oct 2026
From$159*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$159*
Seen: 8 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $169
cmp-daily-histogram-bars-legend-max-price-aria-label $324
Displaying fares for September-2026
  • MDW–SEA: cmp-view-offers-disclaimer. Find Offers
    11

    Fri

    SEP

  • MDW–SEA, 09/12/2026: From $244
    12

    Sat

  • MDW–SEA, 09/13/2026: From $324
    13

    Sun

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

    Mon

  • MDW–SEA, 09/15/2026: From $234
    15

    Tue

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

    Wed

  • MDW–SEA, 09/17/2026: From $244
    17

    Thu

  • MDW–SEA, 09/18/2026: From $244
    18

    Fri

  • MDW–SEA, 09/19/2026: From $234
    19

    Sat

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

    Sun

  • MDW–SEA, 09/21/2026: From $274
    21

    Mon

  • MDW–SEA, 09/22/2026: From $234
    22

    Tue

  • MDW–SEA, 09/23/2026: From $234
    23

    Wed

  • MDW–SEA, 09/24/2026: From $244
    24

    Thu

  • MDW–SEA, 09/25/2026: From $244
    25

    Fri

  • MDW–SEA, 09/26/2026: From $244
    26

    Sat

  • MDW–SEA, 09/27/2026: From $244
    27

    Sun

  • MDW–SEA, 09/28/2026: From $244
    28

    Mon

  • MDW–SEA, 09/29/2026: From $244
    29

    Tue

  • MDW–SEA, 09/30/2026: From $244
    30

    Wed

  • MDW–SEA, 10/01/2026: From $244
    01

    Thu

    OCT

  • MDW–SEA, 10/02/2026: From $199
    02

    Fri

  • MDW–SEA, 10/03/2026: From $194
    03

    Sat

  • MDW–SEA, 10/04/2026: From $229
    04

    Sun

  • MDW–SEA, 10/05/2026: From $179
    05

    Mon

  • MDW–SEA, 10/06/2026: From $169
    06

    Tue

  • MDW–SEA, 10/07/2026: From $189
    07

    Wed

  • MDW–SEA, 10/08/2026: From $179
    08

    Thu

  • MDW–SEA, 10/09/2026: From $189
    09

    Fri

  • MDW–SEA, 10/10/2026: From $209
    10

    Sat

    • Range$169-$324

    *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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