Chicago to Seattle
MDWSEA
Fly from Chicago to Seattle starting at USD 195 with Southwest Airlines.
Best fare available on Jul 21, 2026.
Limited seats. Better plans. Book before it's gone.
Chicago to Seattle cheapest flights this week
Chicago to Seattle monthly flight fare trend
Jul
from USD 195
Aug
from USD 182
Sep
from USD 183
Oct
No flights
Nov
No flights
Dec
No flights
Airport Details
Origin
Chicago
Chicago Midway International Airport (MDW)
Chicago, MDW
Zone
Chicago
Elev
620 ft
Destination
Seattle
Seattle–Tacoma International Airport (SEA)
Seattle, SEA
Zone
Los Angeles
Elev
433 ft
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