Chicago to Seattle

ORDSEA

Fly from Chicago to Seattle starting at USD 107 with Frontier Airlines.Best fare available on Oct 14, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

8 Oct
Alaska Airlines
06:00ORD
10:37SEA
DirectUSD 191VIEW DEAL
8 Oct
Alaska Airlines
09:00ORD
13:44SEA
DirectUSD 210VIEW DEAL
9 Oct
American Airlines
06:49ORD
11:31SEA
DirectUSD 187VIEW DEAL
9 Oct
Frontier Airlines
20:01ORD
20:45SEA
1 StopUSD 197VIEW DEAL
11 Oct
Frontier Airlines
15:30ORD
11:48SEA
1 StopUSD 219VIEW DEAL
12 Oct
American Airlines
06:49ORD
11:31SEA
DirectUSD 318VIEW DEAL
14 Oct
Frontier Airlines
20:01ORD
20:45SEA
1 StopUSD 107VIEW DEAL
14 Oct
Frontier Airlines
08:04ORD
23:59SEA
1 StopUSD 141VIEW DEAL
15 Oct
Frontier Airlines
20:01ORD
20:45SEA
1 StopUSD 221VIEW DEAL
15 Oct
Alaska Airlines
06:00ORD
10:37SEA
DirectUSD 143VIEW DEAL

Chicago to Seattle monthly flight fare trend

Oct
from USD 107
Nov
from USD 97
Dec
from USD 178
Jan
from USD 146
Feb
from USD 147
Mar
from USD 142

Airport Details

Origin

Chicago

Chicago O'Hare International Airport (ORD)

Chicago, ORD
Zone

Chicago

Elev

680 ft

Destination

Seattle

Seattle–Tacoma International Airport (SEA)

Seattle, SEA
Zone

Los Angeles

Elev

433 ft

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