Flights to Cascade Loop Scenic Byway from Chicago - ￥46,710

View ￥46,710 flight on Sun, Sep 21, 2025Opens in a new window

Popular airlines from Chicago to Cascade Loop Scenic Byway

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Cheap Flights from Chicago to Cascade Loop Scenic Byway (CHI-SEA)

Prices were available within the past 7 days and start at ￥46,710 for one-way flights and ￥93,420 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, Jan 7 - Fri, Jan 9
ORD
Chicago
PAE
Seattle
￥93,420 Roundtrip, found 4 days ago
￥93,420
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Jan 7 from Chicago to Seattle, returning Fri, Jan 9, priced at ￥93,420 found 4 days ago
American Airlines
Sun, Sep 28 - Sun, Oct 5
ORD
Chicago
PAE
Seattle
￥93,680 Roundtrip, found 3 days ago
￥93,680
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sun, Sep 28 from Chicago to Seattle, returning Sun, Oct 5, priced at ￥93,680 found 3 days ago
American Airlines
Thu, Sep 4 - Wed, Sep 10
ORD
Chicago
PAE
Seattle
￥116,750 Roundtrip, found 15 hours ago
￥116,750
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Thu, Sep 4 from Chicago to Seattle, returning Wed, Sep 10, priced at ￥116,750 found 15 hours ago

Find the cheapest month to fly from Chicago (CHI) to Seattle (SEA)

September is typically the cheapest month to fly

From ￥15,459 - ￥31,482 per traveler.

Graph displaying average flight prices per month

*Available to Expedia members.