Chicago to Seattle

ORDSEA

Fly from Chicago to Seattle starting at USD 135 with Frontier Airlines.Best fare available on Sep 30, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

29 Sept
Frontier Airlines
06:30ORD
17:08SEA
1 StopUSD 220VIEW DEAL
29 Sept
Frontier Airlines
13:21ORD
11:42SEA
1 StopUSD 220VIEW DEAL
30 Sept
Frontier Airlines
11:06ORD
02:27SEA
1 StopUSD 137VIEW DEAL
30 Sept
Frontier Airlines
06:30ORD
17:08SEA
1 StopUSD 151VIEW DEAL
30 Sept
Frontier Airlines
13:21ORD
11:42SEA
1 StopUSD 135VIEW DEAL
30 Sept
United Airlines
20:12ORD
00:56SEA
DirectUSD 368VIEW DEAL
30 Sept
American Airlines
10:00ORD
14:50SEA
DirectUSD 369VIEW DEAL
1 Oct
Frontier Airlines
06:30ORD
17:08SEA
1 StopUSD 155VIEW DEAL
1 Oct
Alaska Airlines
13:03ORD
17:41SEA
DirectUSD 153VIEW DEAL
1 Oct
Frontier Airlines
20:55ORD
11:42SEA
1 StopUSD 181VIEW DEAL

Chicago to Seattle monthly flight fare trend

Sep
from USD 135
Oct
from USD 107
Nov
from USD 97
Dec
from USD 178
Jan
from USD 155
Feb
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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