Chicago to Seattle

MDWSEA

Fly from Chicago to Seattle starting at USD 149 with Southwest Airlines.Best fare available on Jul 22, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

20 Jul
Southwest Airlines
16:55MDW
02:55SEA
1 StopUSD 215VIEW DEAL
20 Jul
Southwest Airlines
22:00MDW
02:35SEA
DirectUSD 204VIEW DEAL
21 Jul
Southwest Airlines
18:55MDW
02:45SEA
1 StopUSD 195VIEW DEAL
21 Jul
Southwest Airlines
21:50MDW
02:25SEA
DirectUSD 218VIEW DEAL
22 Jul
Southwest Airlines
17:05MDW
21:35SEA
DirectUSD 149VIEW DEAL
26 Jul
Southwest Airlines
06:10MDW
16:55SEA
1 StopUSD 260VIEW DEAL
27 Jul
Southwest Airlines
17:15MDW
21:45SEA
DirectUSD 216VIEW DEAL
30 Jul
Southwest Airlines
18:55MDW
01:55SEA
1 StopUSD 232VIEW DEAL
31 Jul
Southwest Airlines
18:55MDW
01:55SEA
1 StopUSD 219VIEW DEAL
2 Aug
Southwest Airlines
08:05MDW
16:15SEA
1 StopUSD 273VIEW DEAL

Chicago to Seattle monthly flight fare trend

Jul
from USD 149
Aug
from USD 153
Sep
from USD 130
Oct
from USD 203
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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