Chicago to Seattle

MDWSEA

Fly from Chicago to Seattle starting at USD 168 with Southwest Airlines.Best fare available on Oct 14, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

9 Oct
Frontier Airlines
12:03MDW
12:00SEA
2 StopUSD 169VIEW DEAL
9 Oct
Southwest Airlines
22:05MDW
02:35SEA
DirectUSD 177VIEW DEAL
9 Oct
Southwest Airlines
22:05MDW
02:40SEA
DirectUSD 267VIEW DEAL
10 Oct
Southwest Airlines
19:05MDW
23:40SEA
DirectUSD 266VIEW DEAL
11 Oct
Southwest Airlines
22:20MDW
02:55SEA
DirectUSD 316VIEW DEAL
12 Oct
Southwest Airlines
22:05MDW
02:40SEA
DirectUSD 318VIEW DEAL
14 Oct
Southwest Airlines
06:05MDW
16:20SEA
1 StopUSD 168VIEW DEAL
15 Oct
Southwest Airlines
22:05MDW
02:40SEA
DirectUSD 315VIEW DEAL
16 Oct
Southwest Airlines
21:30MDW
20:45SEA
2 StopUSD 174VIEW DEAL
16 Oct
Southwest Airlines
22:05MDW
02:40SEA
DirectUSD 189VIEW DEAL

Chicago to Seattle monthly flight fare trend

Oct
from USD 135
Nov
from USD 106
Dec
from USD 204
Jan
from USD 167
Feb
from USD 151
Mar
from USD 151

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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