Chicago to Seattle

MDWSEA

Fly from Chicago to Seattle starting at USD 153 with Frontier Airlines.Best fare available on Aug 6, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

2 Aug
Southwest Airlines
08:05MDW
16:15SEA
1 StopUSD 273VIEW DEAL
3 Aug
Southwest Airlines
18:25MDW
02:55SEA
1 StopUSD 261VIEW DEAL
3 Aug
Southwest Airlines
22:00MDW
02:35SEA
DirectUSD 208VIEW DEAL
4 Aug
Southwest Airlines
21:00MDW
01:35SEA
DirectUSD 182VIEW DEAL
5 Aug
Frontier Airlines
16:45MDW
13:04SEA
2 StopUSD 190VIEW DEAL
6 Aug
Frontier Airlines
21:27MDW
11:04SEA
2 StopUSD 153VIEW DEAL
6 Aug
Frontier Airlines
11:06MDW
13:04SEA
2 StopUSD 180VIEW DEAL
7 Aug
Southwest Airlines
18:15MDW
02:40SEA
1 StopUSD 188VIEW DEAL
8 Aug
Southwest Airlines
18:25MDW
22:55SEA
DirectUSD 239VIEW DEAL
9 Aug
Frontier Airlines
06:05MDW
11:04SEA
2 StopUSD 195VIEW DEAL

Chicago to Seattle monthly flight fare trend

Aug
from USD 145
Sep
from USD 130
Oct
from USD 135
Nov
No flights
Dec
from USD 204
Jan
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

Flights from Chicago

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