Cheap Flights From CHI-All Airports (CHI) To Seattle - Tacoma Intl. (SEA)

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Cheapest Flights from Chicago (CHI) to Seattle (SEA)

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were CA $270 round trip and CA $139 one way. Prices and availability subject to change. Additional terms may apply.

Sat, May 2 - Wed, May 6
ORD
Chicago
SEA
Seattle
CA $270 Roundtrip, found 4 days ago
CA $270
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Chicago to Seattle, returning Wed, May 6, priced at CA $270 found 4 days ago
Sat, May 2 - Wed, May 6
ORD
Chicago
SEA
Seattle
CA $272 Roundtrip, found 4 days ago
CA $272
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Chicago to Seattle, returning Wed, May 6, priced at CA $272 found 4 days ago
Wed, Apr 1 - Tue, Apr 7
ORD
Chicago
SEA
Seattle
CA $276 Roundtrip, found 3 days ago
CA $276
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Wed, Apr 1 from Chicago to Seattle, returning Tue, Apr 7, priced at CA $276 found 3 days ago
Fri, Apr 17 - Mon, Apr 20
ORD
Chicago
SEA
Seattle
CA $305 Roundtrip, found 9 hours ago
CA $305
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Fri, Apr 17 from Chicago to Seattle, returning Mon, Apr 20, priced at CA $305 found 9 hours ago
Sat, May 2 - Wed, May 6
ORD
Chicago
SEA
Seattle
CA $317 Roundtrip, found 4 days ago
CA $317
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Chicago to Seattle, returning Wed, May 6, priced at CA $317 found 4 days ago
Sat, May 2 - Wed, May 6
ORD
Chicago
SEA
Seattle
CA $319 Roundtrip, found 4 days ago
CA $319
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Chicago to Seattle, returning Wed, May 6, priced at CA $319 found 4 days ago
Sat, May 2 - Wed, May 6
ORD
Chicago
SEA
Seattle
CA $325 Roundtrip, found 4 days ago
CA $325
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Chicago to Seattle, returning Wed, May 6, priced at CA $325 found 4 days ago
Sat, May 2 - Wed, May 6
ORD
Chicago
SEA
Seattle
CA $327 Roundtrip, found 4 days ago
CA $327
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, May 2 from Chicago to Seattle, returning Wed, May 6, priced at CA $327 found 4 days ago
Fri, Apr 17 - Fri, Apr 17
ORD
Chicago
SEA
Seattle
CA $332 Roundtrip, found 2 days ago
CA $332
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Apr 17 from Chicago to Seattle, returning Fri, Apr 17, priced at CA $332 found 2 days ago
Fri, Apr 17 - Mon, Apr 20
ORD
Chicago
SEA
Seattle
CA $362 Roundtrip, found 9 hours ago
CA $362
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Fri, Apr 17 from Chicago to Seattle, returning Mon, Apr 20, priced at CA $362 found 9 hours ago
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.