Chicago to Seattle

MDWSEA

Fly from Chicago to Seattle starting at USD 163 with Southwest Airlines.Best fare available on Oct 3, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

30 Sept
Southwest Airlines
21:00MDW
01:40SEA
DirectUSD 199VIEW DEAL
30 Sept
Frontier Airlines
07:25MDW
12:00SEA
2 StopUSD 184VIEW DEAL
30 Sept
Southwest Airlines
10:35MDW
15:05SEA
DirectUSD 174VIEW DEAL
30 Sept
Southwest Airlines
06:40MDW
22:40SEA
2 StopUSD 427VIEW DEAL
1 Oct
Southwest Airlines
22:05MDW
02:35SEA
DirectUSD 260VIEW DEAL
1 Oct
Frontier Airlines
12:54MDW
11:42SEA
3 StopUSD 448VIEW DEAL
2 Oct
Southwest Airlines
22:05MDW
02:35SEA
DirectUSD 319VIEW DEAL
3 Oct
Southwest Airlines
19:05MDW
23:35SEA
DirectUSD 163VIEW DEAL
3 Oct
Southwest Airlines
11:25MDW
15:55SEA
DirectUSD 300VIEW DEAL
4 Oct
Southwest Airlines
22:20MDW
02:55SEA
DirectUSD 317VIEW DEAL

Chicago to Seattle monthly flight fare trend

Sep
from USD 174
Oct
from USD 135
Nov
from USD 106
Dec
from USD 204
Jan
from USD 167
Feb
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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