Seattle to Chicago

SEAMDW

Fly from Seattle to Chicago starting at USD 142 with Frontier Airlines.Best fare available on Sep 1, 2026.Limited seats. Better plans. Book before it's gone.

Seattle to Chicago cheapest flights this week

19 Aug
Southwest Airlines
05:20SEA
09:15MDW
DirectUSD 186VIEW DEAL
20 Aug
Frontier Airlines
19:06SEA
08:50MDW
2 StopUSD 254VIEW DEAL
21 Aug
Southwest Airlines
18:10SEA
03:45MDW
1 StopUSD 241VIEW DEAL
22 Aug
Southwest Airlines
05:30SEA
12:10MDW
DirectUSD 245VIEW DEAL
23 Aug
Southwest Airlines
23:00SEA
09:00MDW
1 StopUSD 250VIEW DEAL
24 Aug
Frontier Airlines
13:35SEA
20:47MDW
2 StopUSD 202VIEW DEAL
27 Aug
Southwest Airlines
23:05SEA
03:05MDW
DirectUSD 155VIEW DEAL
31 Aug
Southwest Airlines
23:05SEA
03:05MDW
DirectUSD 156VIEW DEAL
1 Sept
Southwest Airlines
23:05SEA
03:05MDW
DirectUSD 192VIEW DEAL
1 Sept
Frontier Airlines
19:07SEA
07:50MDW
1 StopUSD 142VIEW DEAL

Seattle to Chicago monthly flight fare trend

Aug
from USD 155
Sep
from USD 142
Oct
from USD 154
Nov
from USD 217
Dec
No flights
Jan
No flights

Airport Details

Origin

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

Destination

Chicago

Chicago Midway International Airport (MDW)

Chicago, MDW
Zone

Chicago

Elev

620 ft

Flights from Seattle

Flights from Seattle to AtlantaFlights from Seattle to AustinFlights from Seattle to BostonFlights from Seattle to CharlotteFlights from Seattle to DenverFlights from Seattle to DallasFlights from Seattle to DetroitFlights from Seattle to NewarkFlights from Seattle to Fort LauderdaleFlights from Seattle to Honolulu