Chicago to Seattle

ORDSEA

Fly from Chicago to Seattle starting at SAR 525 with Frontier Airlines.Best fare available on Sep 28, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Seattle cheapest flights this week

23 Sept
Frontier Airlines
06:30ORD
17:08SEA
1 StopSAR 655VIEW DEAL
24 Sept
Frontier Airlines
20:55ORD
11:42SEA
1 StopSAR 762VIEW DEAL
24 Sept
Frontier Airlines
13:01ORD
22:40SEA
2 StopSAR 1,114VIEW DEAL
25 Sept
Frontier Airlines
20:55ORD
11:42SEA
1 StopSAR 710VIEW DEAL
26 Sept
Frontier Airlines
19:32ORD
11:42SEA
1 StopSAR 707VIEW DEAL
27 Sept
Frontier Airlines
20:55ORD
11:42SEA
1 StopSAR 673VIEW DEAL
28 Sept
Frontier Airlines
06:30ORD
17:08SEA
1 StopSAR 525VIEW DEAL
28 Sept
Frontier Airlines
20:55ORD
11:42SEA
1 StopSAR 525VIEW DEAL
29 Sept
Frontier Airlines
06:30ORD
17:08SEA
1 StopSAR 670VIEW DEAL
29 Sept
Frontier Airlines
13:21ORD
11:42SEA
1 StopSAR 725VIEW DEAL

Chicago to Seattle monthly flight fare trend

Sep
from SAR 500
Oct
from SAR 396
Nov
from SAR 359
Dec
from SAR 659
Jan
No flights
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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