$107 Cheap Flights from Chicago (CHI) to Seattle (SEA)

Cheap Flights from Chicago to Seattle (CHI-SEA)

Prices were available within the past 7 days and start at $107 for one-way flights and $220 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, May 9 - Wed, Jun 10

ORD

Chicago

SEA

Seattle

$220 Roundtrip, found 4 hours ago

$220

Roundtrip

found 4 hours ago

Select Southwest Airlines flight, departing Sat, May 9 from Chicago to Seattle, returning Wed, Jun 10, priced at $220 found 4 hours ago

Thu, Jun 18 - Tue, Jun 23

ORD

Chicago

SEA

Seattle

$230 Roundtrip, just found

$230

Roundtrip

just found

Select Frontier Airlines flight, departing Thu, Jun 18 from Chicago to Seattle, returning Tue, Jun 23, priced at $230 just found

Tue, May 12 - Tue, Jun 9

ORD

Chicago

SEA

Seattle

$233 Roundtrip, found 3 hours ago

$233

Roundtrip

found 3 hours ago

Select American Airlines flight, departing Tue, May 12 from Chicago to Seattle, returning Tue, Jun 9, priced at $233 found 3 hours ago

Wed, May 6 - Sat, May 23

ORD

Chicago

SEA

Seattle

$235 Roundtrip, found 23 hours ago

$235

Roundtrip

found 23 hours ago

Select Frontier Airlines flight, departing Wed, May 6 from Chicago to Seattle, returning Sat, May 23, priced at $235 found 23 hours ago

Sun, Jun 14 - Tue, Jun 23

ORD

Chicago

SEA

Seattle

$241 Roundtrip, found 5 hours ago

$241

Roundtrip

found 5 hours ago

Select Frontier Airlines flight, departing Sun, Jun 14 from Chicago to Seattle, returning Tue, Jun 23, priced at $241 found 5 hours ago

Tue, May 12 - Tue, Jun 9

ORD

Chicago

SEA

Seattle

$243 Roundtrip, found 3 hours ago

$243

Roundtrip

found 3 hours ago

Select Southwest Airlines flight, departing Tue, May 12 from Chicago to Seattle, returning Tue, Jun 9, priced at $243 found 3 hours ago

Tue, May 12 - Tue, Jun 9

ORD

Chicago

SEA

Seattle

$248 Roundtrip, found 3 hours ago

$248

Roundtrip

found 3 hours ago

Select Southwest Airlines flight, departing Tue, May 12 from Chicago to Seattle, returning Tue, Jun 9, priced at $248 found 3 hours ago

Tue, May 12 - Wed, May 13

ORD

Chicago

SEA

Seattle

$249 Roundtrip, found 22 hours ago

$249

Roundtrip

found 22 hours ago

Select Bargain Flight flight, departing Tue, May 12 from Chicago to Seattle, returning Wed, May 13, priced at $249 found 22 hours ago

Tue, May 12 - Tue, May 12

ORD

Chicago

SEA

Seattle

$250 Roundtrip, found 3 days ago

$250

Roundtrip

found 3 days ago

Select Delta flight, departing Tue, May 12 from Chicago to Seattle, returning Tue, May 12, priced at $250 found 3 days ago

Sun, Jun 14 - Wed, Jun 24

ORD

Chicago

SEA

Seattle

$250 Roundtrip, found 3 hours ago

$250

Roundtrip

found 3 hours ago

Select Frontier Airlines flight, departing Sun, Jun 14 from Chicago to Seattle, returning Wed, Jun 24, priced at $250 found 3 hours ago