Flights from Houston to Northwest Washington

Cheapest flights from Houston

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 1 - Wed, Oct 1

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$179 Roundtrip, found 12 hours ago

$179

Roundtrip

found 12 hours ago

Select Delta flight, departing Wed, Oct 1 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Wed, Oct 1, priced at $179 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

HOU

William P. Hobby

SEA

Seattle - Tacoma Intl.

$185 Roundtrip, found 12 hours ago

$185

Roundtrip

found 12 hours ago

Select American Airlines flight, departing Tue, Sep 30 from William P. Hobby to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $185 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$185 Roundtrip, found 12 hours ago

$185

Roundtrip

found 12 hours ago

Select American Airlines flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $185 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$201 Roundtrip, found 12 hours ago

$201

Roundtrip

found 12 hours ago

Select Alaska Airlines flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $201 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$201 Roundtrip, found 12 hours ago

$201

Roundtrip

found 12 hours ago

Select United flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $201 found 12 hours ago

Sun, Sep 28 - Tue, Oct 7

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$208 Roundtrip, found 12 hours ago

$208

Roundtrip

found 12 hours ago

Select Delta flight, departing Sun, Sep 28 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Tue, Oct 7, priced at $208 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$211 Roundtrip, found 12 hours ago

$211

Roundtrip

found 12 hours ago

Select United flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $211 found 12 hours ago

Sat, Sep 27 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$217 Roundtrip, found 5 days ago

$217

Roundtrip

found 5 days ago

Select Hawaiian Airlines flight, departing Sat, Sep 27 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $217 found 5 days ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$217 Roundtrip, found 12 hours ago

$217

Roundtrip

found 12 hours ago

Select Alaska Airlines flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $217 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$217 Roundtrip, found 12 hours ago

$217

Roundtrip

found 12 hours ago

Select United flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $217 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$221 Roundtrip, found 12 hours ago

$221

Roundtrip

found 12 hours ago

Select United flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $221 found 12 hours ago

Fri, Oct 3 - Fri, Oct 3

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$225 Roundtrip, found 12 hours ago

$225

Roundtrip

found 12 hours ago

Select Delta flight, departing Fri, Oct 3 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Fri, Oct 3, priced at $225 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$227 Roundtrip, found 12 hours ago

$227

Roundtrip

found 12 hours ago

Select Alaska Airlines flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $227 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$230 Roundtrip, found 12 hours ago

$230

Roundtrip

found 12 hours ago

Select American Airlines flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $230 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$230 Roundtrip, found 12 hours ago

$230

Roundtrip

found 12 hours ago

Select United flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $230 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$237 Roundtrip, found 12 hours ago

$237

Roundtrip

found 12 hours ago

Select Alaska Airlines flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $237 found 12 hours ago

Wed, Sep 17 - Sun, Sep 28

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$237 Roundtrip, found 16 hours ago

$237

Roundtrip

found 16 hours ago

Select Hawaiian Airlines flight, departing Wed, Sep 17 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sun, Sep 28, priced at $237 found 16 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$241 Roundtrip, found 12 hours ago

$241

Roundtrip

found 12 hours ago

Select American Airlines flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $241 found 12 hours ago

Tue, Sep 30 - Sat, Oct 4

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$242 Roundtrip, found 12 hours ago

$242

Roundtrip

found 12 hours ago

Select Delta flight, departing Tue, Sep 30 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $242 found 12 hours ago

Tue, Aug 26 - Tue, Sep 2

IAH

George Bush Intercontinental

SEA

Seattle - Tacoma Intl.

$248 Roundtrip, found 1 day ago

$248

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Tue, Aug 26 from George Bush Intercontinental to Seattle - Tacoma Intl., returning Tue, Sep 2, priced at $248 found 1 day ago