Chicago to Seattle

ORDSEA

Fly from Chicago to Seattle starting at USD 144 with Frontier Airlines.Best fare available on Jul 11, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

11 Jul
Frontier Airlines
21:57ORD
11:17SEA
1 StopUSD 144VIEW DEAL
13 Jul
Frontier Airlines
21:57ORD
11:17SEA
1 StopUSD 148VIEW DEAL
15 Jul
Alaska Airlines
06:00ORD
10:38SEA
DirectUSD 179VIEW DEAL
17 Jul
Frontier Airlines
21:57ORD
11:17SEA
1 StopUSD 144VIEW DEAL
20 Jul
Frontier Airlines
07:15ORD
12:39SEA
1 StopUSD 144VIEW DEAL
20 Jul
Frontier Airlines
21:57ORD
11:17SEA
1 StopUSD 150VIEW DEAL
21 Jul
Frontier Airlines
07:15ORD
12:39SEA
1 StopUSD 160VIEW DEAL
21 Jul
Frontier Airlines
21:57ORD
11:17SEA
1 StopUSD 153VIEW DEAL
26 Jul
American Airlines
22:15ORD
02:52SEA
DirectUSD 208VIEW DEAL
31 Jul
Frontier Airlines
21:57ORD
11:17SEA
1 StopUSD 165VIEW DEAL

Chicago to Seattle monthly flight fare trend

Jul
from USD 144
Aug
from USD 106
Sep
from USD 108
Oct
No flights
Nov
No flights
Dec
No flights

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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