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Find low faresSouthwest® flights from Chicago (Midway) to Seattle/Tacoma from $80
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1 Passenger
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Low fares from Chicago (Midway) to Seattle/Tacoma
$
Chicago (Midway) (MDW)to
Seattle/Tacoma (SEA)
Depart: 02/28/2026
One-way
Basic
From
$80
Seen: 5 hrs ago
Chicago (Midway) (MDW)to
Seattle/Tacoma (SEA)
Depart: 03/28/2026
One-way
Basic
From
$80
Seen: 3 hrs ago
Chicago (Midway) (MDW)to
Seattle/Tacoma (SEA)
Depart: 04/04/2026
One-way
Basic
From
$80
Seen: 3 hrs ago
Chicago (Midway) (MDW)to
Seattle/Tacoma (SEA)
Depart: 03/21/2026
One-way
Basic
From
$82
Seen: 15 hrs ago
Chicago (Midway) (MDW)to
Seattle/Tacoma (SEA)
Depart: 05/02/2026
One-way
Basic
From
$90
Seen: 10 hrs ago
Chicago (Midway) (MDW)to
Seattle/Tacoma (SEA)
Depart: 05/09/2026
One-way
Basic
From
$98
Seen: 19 hrs ago
Explore flights from Chicago (Midway) to Seattle/Tacoma
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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.