Chicago to Seattle

MDWSEA

Fly from Chicago to Seattle starting at USD 197 with Southwest Airlines.Best fare available on Sep 6, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

2 Sept
Southwest Airlines
21:00MDW
01:35SEA
DirectUSD 235VIEW DEAL
2 Sept
Southwest Airlines
15:30MDW
19:55SEA
DirectUSD 233VIEW DEAL
3 Sept
Southwest Airlines
12:05MDW
23:45SEA
1 StopUSD 268VIEW DEAL
4 Sept
Frontier Airlines
11:50MDW
15:22SEA
2 StopUSD 204VIEW DEAL
4 Sept
Southwest Airlines
18:15MDW
02:45SEA
1 StopUSD 253VIEW DEAL
4 Sept
Southwest Airlines
21:20MDW
01:55SEA
DirectUSD 240VIEW DEAL
5 Sept
Southwest Airlines
18:25MDW
22:55SEA
DirectUSD 227VIEW DEAL
5 Sept
Southwest Airlines
12:40MDW
21:35SEA
1 StopUSD 225VIEW DEAL
5 Sept
Southwest Airlines
06:50MDW
15:10SEA
1 StopUSD 247VIEW DEAL
6 Sept
Southwest Airlines
20:30MDW
01:05SEA
DirectUSD 197VIEW DEAL

Chicago to Seattle monthly flight fare trend

Sep
from USD 141
Oct
from USD 134
Nov
from USD 153
Dec
from USD 204
Jan
No flights
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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