American Airlines Cheap Flights from Chicago to Seattle: AA CHI→SEA

View HK$1,045 flight on Mon, 9 Feb 2026Opens in a new window
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Prices were available within the past 7 days and start at HK$1,045 for one-way flights and HK$3,089 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, 23 Dec - Mon, 29 Dec
ORD
Chicago
SEA
Seattle
HK$3,089 Return, found 2 days ago
HK$3,089
Return
found 2 days ago
Select American Airlines flight, departing Tue, 23 Dec from Chicago to Seattle, returning Mon, 29 Dec, priced at HK$3,089 found 2 days ago
Chicago to Seattle route information
Origin airport
Midway Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
United
Distance
2766 km
*Available to Expedia members.